Re: Stus-List CC 35-III Headroom?
It's over 6 feet, except for the doorway into the vee berth. Joel 35/3 On Mon, Jul 20, 2015 at 8:39 PM, David Lenehan via CnC-List cnc-list@cnc-list.com wrote: Lee, I'm pretty certain it's 6'4. Hope it helps David On 21 July 2015 at 10:33, Lee Youngblood via CnC-List cnc-list@cnc-list.com wrote: Anyone know the headroom in a 1986 35-III? Boats out of town or I’d measure. ___ Email address: CnC-List@cnc-list.com To change your list preferences, including unsubscribing -- go to the bottom of page at: http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com ___ Email address: CnC-List@cnc-list.com To change your list preferences, including unsubscribing -- go to the bottom of page at: http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com -- Joel 301 541 8551 ___ Email address: CnC-List@cnc-list.com To change your list preferences, including unsubscribing -- go to the bottom of page at: http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com
Re: Stus-List Best EngineYanmar 3GM + Prop?
Thanks Andrew, Joel and Mike. That Martec is the same as what I took off in 2002. Never did make 7 kts with that, though do not recall ever trying. The tach did not work when I had the Martec so have no readings for comparison. Am not by any stretch a mechanic. According to the Yanmar manual the “continuous rating” is 3400 with the “one hour rating” of 3600. I usually operate the engine ~ 2750-2800 which is just over 80% of continuous and 78% of the one hour. Have heard for years that 80% is the rule of thumb for diesels. The 3200 delivery trip this spring was a one off aberration due to time constraints. Do not think I could even get to 3600 if I wanted to. And from what I have read the engine “should” be able to reach that, just not be operated at that level for a period of time. That said, still have some pitting on the prop blades and more vibration than can be good. Both signs of cavitation. Even at 75% of continuous [2550] have vibration. Have had the engine mounts replaced after I replaced the prop shaft and coupling in an effort to mitigate the vibration possibly due to a bent or out of balance shaft. Everything was aligned by a mechanic who has a good customer base, so assume was done correctly / accurately. A friend has a sister ship and easily gets to and cruises at 7+ kts and I can barely make that only when really press to WOT and never do that. He also has a Flex prop though the “racing” version which has smaller blades. Have asked him to check his diameter and more importantly pitch. All this has led me to conclude that my prop is over pitched. From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Andrew Burton via CnC-List Sent: Tuesday, July 21, 2015 10:42 AM To: cnc-list@cnc-list.com Cc: Andrew Burton Subject: Re: Stus-List Best EngineYanmar 3GM + Prop? It sounds to me like you may be over-revving your engine. My rule of thumb with my boat (same engine as you) and when I get on a boat I'm delivering, is to get into open water and, in gear, push the throttle wide open. My cruising RPM is no more than 75% of that number, which on Peregrine works out to 2200 or so. Andy CC 40 Peregrine On Tue, Jul 21, 2015 at 10:31 AM, Nauset Beach via CnC-List cnc-list@cnc-list.com mailto:cnc-list@cnc-list.com wrote: John, Mike and any others with a Yanmar 3GM30F What is the make, diameter and pitch of your props, and can you get to the one hour rated RPM of 3600? Back in 2010 I had an engine overheat alarm and discovered the coolant overflow tank was full and had an amount of oily substance mixed in. There was very little coolant left in the engine. The mechanic discovered a blown head gasket was the cause. The head was sent to a shop to be rebuilt and a few other parts replaced. Last month [just after Edd's engine woes came to light] I had another overheat alarm, and again discovered the coolant tank full and the same oil mix. Am assuming the head gasket is blown - again. The mechanic has not looked at it yet. Obviously, something is wrong. The July edition of Cruising World had a timely article about props and stated an over pitched prop puts additional wear on the engine and can lead to cavitation. Nothing new there but started a possible theory. I have not had dark exhaust so did not think the prop was over-pitched, but there is some pitting on the prop blades so maybe there is cavitation and an over loaded engine. Also have excessive vibration so the clues seem to be going in that direction. I rarely take the engine up to 3000 RPM though did have a several hour delivery at 3200 this spring. Have never tried but do not think I could get up to 3600. [Have read the Yanmar tach's are not all that accurate and have not had the RPM's verified independently.] Still this seems to be another indicator the prop may be over pitched. I originally had a Martec folding 16 D x 14 P prop though after the lack of much reverse led to a near miss incident I replaced it in 2002 with a Flex-O-Fold with a 16 D x 13 P at the recommendation of Flex o Fold. The reduction is 2.61. Am thinking the increased surface area Flex prop is overloading the engine even though the pitch was decreased by 1 compared to the Martec. Anyone have any thoughts? Thanks, Brian -Original Message- From: CnC-List [mailto:cnc-list-boun...@cnc-list.com mailto:cnc-list-boun...@cnc-list.com ] On Behalf Of Hoyt, Mike via CnC-List Sent: Tuesday, July 14, 2015 12:39 PM To: cnc-list@cnc-list.com mailto:cnc-list@cnc-list.com Cc: Hoyt, Mike Subject: Re: Stus-List Best Engine? We have Yanmar 3GM30F in our Ferrs 33 which is similar hull shape to CC33-2. We make 6.2 at 2300 RPM and can just squeak out 7.0 at WOT Mike Persistence -Original Message- From: CnC-List [mailto:cnc-list-boun...@cnc-list.com mailto:cnc-list-boun...@cnc-list.com ] On Behalf Of John and Maryann Read via CnC-List Sent: Tuesday, July 14, 2015
Re: Stus-List Best EngineYanmar 3GM + Prop?
Simple Rule of Thumb: If you can't get to max rated RPM, you're over-pitched. If you can get higher than max rated RPM, you're under-pitched. Alan Bergen 35 Mk III Thirsty Rose City YC Portland, OR John, Mike and any others with a Yanmar 3GM30F What is the make, diameter and pitch of your props, and can you get to the one hour rated RPM of 3600? Back in 2010 I had an engine overheat alarm and discovered the coolant overflow tank was full and had an amount of oily substance mixed in. There was very little coolant left in the engine. The mechanic discovered a blown head gasket was the cause. The head was sent to a shop to be rebuilt and a few other parts replaced. Last month [just after Edd's engine woes came to light] I had another overheat alarm, and again discovered the coolant tank full and the same oil mix. Am assuming the head gasket is blown - again. The mechanic has not looked at it yet. Obviously, something is wrong. The July edition of Cruising World had a timely article about props and stated an over pitched prop puts additional wear on the engine and can lead to cavitation. Nothing new there but started a possible theory. I have not had dark exhaust so did not think the prop was over-pitched, but there is some pitting on the prop blades so maybe there is cavitation and an over loaded engine. Also have excessive vibration so the clues seem to be going in that direction. I rarely take the engine up to 3000 RPM though did have a several hour delivery at 3200 this spring. Have never tried but do not think I could get up to 3600. [Have read the Yanmar tach's are not all that accurate and have not had the RPM's verified independently.] Still this seems to be another indicator the prop may be over pitched. I originally had a Martec folding 16 D x 14 P prop though after the lack of much reverse led to a near miss incident I replaced it in 2002 with a Flex-O-Fold with a 16 D x 13 P at the recommendation of Flex o Fold. The reduction is 2.61. Am thinking the increased surface area Flex prop is overloading the engine even though the pitch was decreased by 1 compared to the Martec. Anyone have any thoughts? Thanks, Brian -Original Message- From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Hoyt, Mike via CnC-List Sent: Tuesday, July 14, 2015 12:39 PM To: cnc-list@cnc-list.com Cc: Hoyt, Mike Subject: Re: Stus-List Best Engine? We have Yanmar 3GM30F in our Ferrs 33 which is similar hull shape to CC33-2. We make 6.2 at 2300 RPM and can just squeak out 7.0 at WOT Mike Persistence -Original Message- From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of John and Maryann Read via CnC-List Sent: Tuesday, July 14, 2015 8:19 AM To: cnc-list@cnc-list.com Cc: John and Maryann Read Subject: Re: Stus-List Best Engine? HI Brian Our 34 has the Yanmar 3GM with Martec folding prop. Clean bottom cruising is 5.5, max is about 6. As I recall, your max speed is supposed to be about 80% of theoretical hull speed with throttle wide open?? Another variable is the calibration of the knotometer and if using the GPS the impact of current John and Maryann Legacy III 1982 CC 34 Noank, CT - Original Message - From: Brian Morrison via CnC-List cnc-list@cnc-list.com To: cnc-list@cnc-list.com Cc: Brian Morrison brianm...@hotmail.com Sent: Tuesday, July 14, 2015 00:47 Subject: Stus-List Best Engine? Hello, I often sail with a group of sailors that have more modern and somewhat larger boats than my 1979 CC34. When there is no wind and we are forced to motor I have difficulty keeping up. With a clean bottom my cruising speed is about 5-5.5 knots. I have an Atomic 4 engine. I'm wondering would a Yanmar or a Westerbeke give me 7+ knots? Brian C. Morrison ___ Email address: CnC-List@cnc-list.com To change your list preferences, including unsubscribing -- go to the bottom of page at: http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com
Re: Stus-List Best EngineYanmar 3GM + Prop?
I have the 3GM30F on my 35/3 and a MaxProp feathering prop. I get to 3600 RPM, cruise at 2800. I think it is a 16 inch set at 14 degrees, but can look it up. Joel On Tue, Jul 21, 2015 at 10:31 AM, Nauset Beach via CnC-List cnc-list@cnc-list.com wrote: John, Mike and any others with a Yanmar 3GM30F What is the make, diameter and pitch of your props, and can you get to the one hour rated RPM of 3600? Back in 2010 I had an engine overheat alarm and discovered the coolant overflow tank was full and had an amount of oily substance mixed in. There was very little coolant left in the engine. The mechanic discovered a blown head gasket was the cause. The head was sent to a shop to be rebuilt and a few other parts replaced. Last month [just after Edd's engine woes came to light] I had another overheat alarm, and again discovered the coolant tank full and the same oil mix. Am assuming the head gasket is blown - again. The mechanic has not looked at it yet. Obviously, something is wrong. The July edition of Cruising World had a timely article about props and stated an over pitched prop puts additional wear on the engine and can lead to cavitation. Nothing new there but started a possible theory. I have not had dark exhaust so did not think the prop was over-pitched, but there is some pitting on the prop blades so maybe there is cavitation and an over loaded engine. Also have excessive vibration so the clues seem to be going in that direction. I rarely take the engine up to 3000 RPM though did have a several hour delivery at 3200 this spring. Have never tried but do not think I could get up to 3600. [Have read the Yanmar tach's are not all that accurate and have not had the RPM's verified independently.] Still this seems to be another indicator the prop may be over pitched. I originally had a Martec folding 16 D x 14 P prop though after the lack of much reverse led to a near miss incident I replaced it in 2002 with a Flex-O-Fold with a 16 D x 13 P at the recommendation of Flex o Fold. The reduction is 2.61. Am thinking the increased surface area Flex prop is overloading the engine even though the pitch was decreased by 1 compared to the Martec. Anyone have any thoughts? Thanks, Brian -Original Message- From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Hoyt, Mike via CnC-List Sent: Tuesday, July 14, 2015 12:39 PM To: cnc-list@cnc-list.com Cc: Hoyt, Mike Subject: Re: Stus-List Best Engine? We have Yanmar 3GM30F in our Ferrs 33 which is similar hull shape to CC33-2. We make 6.2 at 2300 RPM and can just squeak out 7.0 at WOT Mike Persistence -Original Message- From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of John and Maryann Read via CnC-List Sent: Tuesday, July 14, 2015 8:19 AM To: cnc-list@cnc-list.com Cc: John and Maryann Read Subject: Re: Stus-List Best Engine? HI Brian Our 34 has the Yanmar 3GM with Martec folding prop. Clean bottom cruising is 5.5, max is about 6. As I recall, your max speed is supposed to be about 80% of theoretical hull speed with throttle wide open?? Another variable is the calibration of the knotometer and if using the GPS the impact of current John and Maryann Legacy III 1982 CC 34 Noank, CT - Original Message - From: Brian Morrison via CnC-List cnc-list@cnc-list.com To: cnc-list@cnc-list.com Cc: Brian Morrison brianm...@hotmail.com Sent: Tuesday, July 14, 2015 00:47 Subject: Stus-List Best Engine? Hello, I often sail with a group of sailors that have more modern and somewhat larger boats than my 1979 CC34. When there is no wind and we are forced to motor I have difficulty keeping up. With a clean bottom my cruising speed is about 5-5.5 knots. I have an Atomic 4 engine. I'm wondering would a Yanmar or a Westerbeke give me 7+ knots? Brian C. Morrison ___ Email address: CnC-List@cnc-list.com To change your list preferences, including unsubscribing -- go to the bottom of page at: http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com -- Joel 301 541 8551 ___ Email address: CnC-List@cnc-list.com To change your list preferences, including unsubscribing -- go to the bottom of page at: http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com
Re: Stus-List Best EngineYanmar 3GM + Prop?
Persistence prop is 8 yr old Martec. Stampted on it are Eleptec and RH16DX14P-3 Max RPM are 3500 which pushes boat at 7.0 knots over water. Cruising RPM 2400 which gives me 6 knots Mike Persistence 1987 Frers 33 Halifax, NS -Original Message- From: Nauset Beach [mailto:nausetbe...@optonline.net] Sent: Tuesday, July 21, 2015 11:31 AM To: cnc-list@cnc-list.com Cc: Hoyt, Mike Subject: Stus-List Best EngineYanmar 3GM + Prop? John, Mike and any others with a Yanmar 3GM30F What is the make, diameter and pitch of your props, and can you get to the one hour rated RPM of 3600? Back in 2010 I had an engine overheat alarm and discovered the coolant overflow tank was full and had an amount of oily substance mixed in. There was very little coolant left in the engine. The mechanic discovered a blown head gasket was the cause. The head was sent to a shop to be rebuilt and a few other parts replaced. Last month [just after Edd's engine woes came to light] I had another overheat alarm, and again discovered the coolant tank full and the same oil mix. Am assuming the head gasket is blown - again. The mechanic has not looked at it yet. Obviously, something is wrong. The July edition of Cruising World had a timely article about props and stated an over pitched prop puts additional wear on the engine and can lead to cavitation. Nothing new there but started a possible theory. I have not had dark exhaust so did not think the prop was over-pitched, but there is some pitting on the prop blades so maybe there is cavitation and an over loaded engine. Also have excessive vibration so the clues seem to be going in that direction. I rarely take the engine up to 3000 RPM though did have a several hour delivery at 3200 this spring. Have never tried but do not think I could get up to 3600. [Have read the Yanmar tach's are not all that accurate and have not had the RPM's verified independently.] Still this seems to be another indicator the prop may be over pitched. I originally had a Martec folding 16 D x 14 P prop though after the lack of much reverse led to a near miss incident I replaced it in 2002 with a Flex-O-Fold with a 16 D x 13 P at the recommendation of Flex o Fold. The reduction is 2.61. Am thinking the increased surface area Flex prop is overloading the engine even though the pitch was decreased by 1 compared to the Martec. Anyone have any thoughts? Thanks, Brian -Original Message- From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Hoyt, Mike via CnC-List Sent: Tuesday, July 14, 2015 12:39 PM To: cnc-list@cnc-list.com Cc: Hoyt, Mike Subject: Re: Stus-List Best Engine? We have Yanmar 3GM30F in our Ferrs 33 which is similar hull shape to CC33-2. We make 6.2 at 2300 RPM and can just squeak out 7.0 at WOT Mike Persistence -Original Message- From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of John and Maryann Read via CnC-List Sent: Tuesday, July 14, 2015 8:19 AM To: cnc-list@cnc-list.com Cc: John and Maryann Read Subject: Re: Stus-List Best Engine? HI Brian Our 34 has the Yanmar 3GM with Martec folding prop. Clean bottom cruising is 5.5, max is about 6. As I recall, your max speed is supposed to be about 80% of theoretical hull speed with throttle wide open?? Another variable is the calibration of the knotometer and if using the GPS the impact of current John and Maryann Legacy III 1982 CC 34 Noank, CT - Original Message - From: Brian Morrison via CnC-List cnc-list@cnc-list.com To: cnc-list@cnc-list.com Cc: Brian Morrison brianm...@hotmail.com Sent: Tuesday, July 14, 2015 00:47 Subject: Stus-List Best Engine? Hello, I often sail with a group of sailors that have more modern and somewhat larger boats than my 1979 CC34. When there is no wind and we are forced to motor I have difficulty keeping up. With a clean bottom my cruising speed is about 5-5.5 knots. I have an Atomic 4 engine. I'm wondering would a Yanmar or a Westerbeke give me 7+ knots? Brian C. Morrison ___ Email address: CnC-List@cnc-list.com To change your list preferences, including unsubscribing -- go to the bottom of page at: http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com
Stus-List Best EngineYanmar 3GM + Prop?
Hi Brian, It depends on the boat but on my 34+ (36 LOA and 30.9 LWL) and My setup is Yanmar 3GM30F / Kanzaki KM3P / 2.61 My theoretical basic hull speed is a little over 7.00 knots When I bought the boat in came with a fixed 3 bladed prop RH 15D X 11P (Probably a Michigan Wheel) installed and 2 bladed 16 X 12 Martec (Eliptec Mark III) in a box. Both of the props are pitched to max out at the engine's continuous rating output of 3400 RPM. With a clean hull the 3 bladed prop makes 6.3 - 6.5 knots at (at the Yanmar recommended 80%) cruising RPM of 2850-2900 RPM and 7.0 knots at WOT / 3400 rpm. With the 16D X 12P Martec Folder it makes 5.8 - 6.2 at 2,850 - 2900 and 6.8 - 7.0 maxed-out. I do have a very clean hull with a recent burnished bottom. If you look at the 3GM30F Service manual performance graph max torque / best fuel economy is between 2,800-3,000 which explains the recommendation. Over-ptiched situation: The Martec prop was in bad need of a rebuild when I bought the boat so I contacted Martec and the guy strongly recommended I'd get new 16D X 14P blades along with the hub rebuild as he felt my existing blades were under-pitched. He was wrong. I did buy the 16D X 14P blades and it made the drivetrain vibrate badly at pretty much all throttle settings and actually slow down (Cavitating) at any throttle setting above 2,700 RPM. When I called back I was given every excuse in the book like bad alignment, bad mounts, slipping clutch, etc, etc. Since the Martec guy would not cooperate, I eventually decided I to just have my old 16 X 12 blades machined to the correct size locally / give it a try and all the issues disappeared. It still vibrates more than the fixed prop but it's reasonably smooth and does add .5 - 1.0 knot to my sailing speed. I did not have too much black smoke, my main over-pitching cues were slow down above 2,700 rpms and vibration. Also, I did have a lot of pitting on the prop, the bladed area was covered with small pea size oxidation bumps. You might want to do some testing on a calm and flat day to see if the boats does stop accelerating or slow down before getting to 3,400 RPM. I have also read that Martec is not the only culprit in the selling of over-pitched props, apparently many of the reps (Regardless of brand) tend to do that to make it look like their props are more efficient.. Good luck with it, PM me if you want more details. That vibration stuff is a bitc$$. Regards -Francois Rivard 1990 34+ Take Five Lake Lanier, GA ___ Email address: CnC-List@cnc-list.com To change your list preferences, including unsubscribing -- go to the bottom of page at: http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com
Re: Stus-List Best EngineYanmar 3GM + Prop?
... and again discovered the coolant tank full and the same oil mix. Am assuming the head gasket is blown - again. The mechanic has not looked at it yet. Obviously, something is wrong. I'm not convinced a slightly over pitched prop would encourage an otherwise healthy engine to blow its head gasket twice over 5 years. Were there any signs of pitting, cracking, or corrosion on either the block or the head when the gasket was changed in 2010? Back when I owned 1/2 of a 1981 CC 36 powered with the original Yanmar 3 cylinder engine I had both a failed head gasket, a crack in the cylinder head, and block corrosion related to the head gasket failure. The cracks in the cylinder head where along the side of the combustion chamber. The symptoms included the oil/soot in the coolant, some coolant in the lube oil, and hard starting when cold. We chose to replace the older Yanmar design with a new Yanmar as spare parts were getting harder to find and many of the parts attached to the block (starter, alternator, exhaust etc.) were in poor condition. My recommendation is to have your mechanic look very close at the head and block to make sure then is not an underlying problem that will return regardless of the prop's pitch. Martin Calypso 1971 CC 43 Seattle -Original Message- From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Nauset Beach via CnC-List Sent: Tuesday, July 21, 2015 7:31 AM To: cnc-list@cnc-list.com Cc: Nauset Beach Subject: Stus-List Best EngineYanmar 3GM + Prop? John, Mike and any others with a Yanmar 3GM30F What is the make, diameter and pitch of your props, and can you get to the one hour rated RPM of 3600? Back in 2010 I had an engine overheat alarm and discovered the coolant overflow tank was full and had an amount of oily substance mixed in. There was very little coolant left in the engine. The mechanic discovered a blown head gasket was the cause. The head was sent to a shop to be rebuilt and a few other parts replaced. Last month [just after Edd's engine woes came to light] I had another overheat alarm, and again discovered the coolant tank full and the same oil mix. Am assuming the head gasket is blown - again. The mechanic has not looked at it yet. Obviously, something is wrong. The July edition of Cruising World had a timely article about props and stated an over pitched prop puts additional wear on the engine and can lead to cavitation. Nothing new there but started a possible theory. I have not had dark exhaust so did not think the prop was over-pitched, but there is some pitting on the prop blades so maybe there is cavitation and an over loaded engine. Also have excessive vibration so the clues seem to be going in that direction. I rarely take the engine up to 3000 RPM though did have a several hour delivery at 3200 this spring. Have never tried but do not think I could get up to 3600. [Have read the Yanmar tach's are not all that accurate and have not had the RPM's verified independently.] Still this seems to be another indicator the prop may be over pitched. I originally had a Martec folding 16 D x 14 P prop though after the lack of much reverse led to a near miss incident I replaced it in 2002 with a Flex-O-Fold with a 16 D x 13 P at the recommendation of Flex o Fold. The reduction is 2.61. Am thinking the increased surface area Flex prop is overloading the engine even though the pitch was decreased by 1 compared to the Martec. Anyone have any thoughts? Thanks, Brian ___ Email address: CnC-List@cnc-list.com To change your list preferences, including unsubscribing -- go to the bottom of page at: http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com
Re: Stus-List CC 35-III Headroom?
Yeah, that darn doorway keeps banging into my head! You’d think after 15 years of ownership I’d remember how low it is. Whacked it again this weekend. Ouch! Jake Jake Brodersen “Midnight Mistress” CC 35 Mk-III Hampton VA From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Joel Aronson via CnC-List Sent: Tuesday, July 21, 2015 11:34 AM To: cnc-list@cnc-list.com Cc: Joel Aronson Subject: Re: Stus-List CC 35-III Headroom? It's over 6 feet, except for the doorway into the vee berth. Joel 35/3 ___ Email address: CnC-List@cnc-list.com To change your list preferences, including unsubscribing -- go to the bottom of page at: http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com
Re: Stus-List Exploding CC
Oh, don't start that again, Kevin! I understood he was taking the boat down to Buffalo to a broker. not sure how he ended up over the border in the deepest pool of the lake. There was nothing below on that boat but a bucket and a handful of pipe berths. on second thought, it might have had a head with an actual door, but that's it.Don't think it's been sailed in 15 years. seems a shame to pollute the lake with yet another wreck. I guess Dave Few can add another boat to his map, ghosts shipwrecks of Lake Erie Bill Coleman CC 39. Erie PA Original message From: Kevin Driscoll via CnC-List cnc-list@cnc-list.com Date: 07/21/2015 7:13 PM (GMT-05:00) To: cnc-list@cnc-list.com Cc: Kevin Driscoll kevindrisc...@gmail.com Subject: Re: Stus-List Exploding CC Sounded like an A4, no? On Tue, Jul 21, 2015 at 3:45 PM S Thomas via CnC-List cnc-list@cnc-list.com wrote: I was wondering if we would hear from you on that one Bill. It would be interesting to hear what the owner had to say about what happened. Precious little in the news reports. He couldn't put the fire out, escaped in the Zodiac, and the coast guard took him back home. That was about it. Steve Thomas CC27 MKIII Port Stanley, ON - Original Message - From: Bill Coleman via CnC-List cnc-list@cnc-list.com To: cnc-list@cnc-list.com Cc: Bill Coleman colt...@verizon.net Sent: Tuesday, July 21, 2015 17:47 Subject: Re: Stus-List Exploding CC And then you have this. Not a CC, a Nelson Marek I believe - http://www.simcoereformer.ca/2015/07/17/sailboat-catches-fire-sinks-on-lake- erie Draw your own conclusions. Bill Coleman CC 39 Erie, PA From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Jim Watts via CnC-List Sent: Saturday, July 11, 2015 8:29 PM To: 1 CnC List Cc: Jim Watts Subject: Stus-List Exploding CC It sounds like the injuries weren't too bad, we can hope...ouch. Looks like a 30? http://www.ottawasun.com/2015/07/11/man-burned-in-boat-explosion-at-gatineau -marina Jim Watts Paradigm Shift CC 35 Mk III ___ Email address: CnC-List@cnc-list.com To change your list preferences, including unsubscribing -- go to the bottom of page at: http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com
Re: Stus-List Exploding CC
Okay then, we have a boat on the way to a broker and suffers a fire in the middle of the lake with a lone wolf aboard. I can believe it's not the fault of having an A4 aboard, it could have been a can of dinghy outboard fuel below Cheers, Russ Sweet 35 -1 At 07:52 PM 21/07/2015, you wrote: Oh, don't start that again, Kevin! I understood he was taking the boat down to Buffalo to a broker. not sure how he ended up over the border in the deepest pool of the lake. There was nothing below on that boat but a bucket and a handful of pipe berths. on second thought, it might have had a head with an actual door, but that's it. Don't think it's been sailed in 15 years. seems a shame to pollute the lake with yet another wreck. I guess Dave Few can add another boat to his map, ghosts shipwrecks of Lake Erie Bill Coleman CC 39. Erie PA Original message From: Kevin Driscoll via CnC-List cnc-list@cnc-list.com Date: 07/21/2015 7:13 PM (GMT-05:00) To: cnc-list@cnc-list.com Cc: Kevin Driscoll kevindrisc...@gmail.com Subject: Re: Stus-List Exploding CC Sounded like an A4, no? On Tue, Jul 21, 2015 at 3:45 PM S Thomas via CnC-List mailto:cnc-list@cnc-list.comcnc-list@cnc-list.com wrote: I was wondering if we would hear from you on that one Bill. It would be interesting to hear what the owner had to say about what happened. Precious little in the news reports. He couldn't put the fire out, escaped in the Zodiac, and the coast guard took him back home. That was about it. Steve Thomas CC27 MKIII Port Stanley, ON - Original Message - From: Bill Coleman via CnC-List mailto:cnc-list@cnc-list.comcnc-list@cnc-list.com To: mailto:cnc-list@cnc-list.comcnc-list@cnc-list.com Cc: Bill Coleman mailto:colt...@verizon.netcolt...@verizon.net Sent: Tuesday, July 21, 2015 17:47 Subject: Re: Stus-List Exploding CC And then you have this. Not a CC, a Nelson Marek I believe - http://www.simcoereformer.ca/2015/07/17/sailboat-catches-fire-sinks-on-lake-http://www.simcoereformer.ca/2015/07/17/sailboat-catches-fire-sinks-on-lake- erie Draw your own conclusions. Bill Coleman CC 39 Erie, PA From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Jim Watts via CnC-List Sent: Saturday, July 11, 2015 8:29 PM To: 1 CnC List Cc: Jim Watts Subject: Stus-List Exploding CC It sounds like the injuries weren't too bad, we can hope...ouch. Looks like a 30? http://www.ottawasun.com/2015/07/11/man-burned-in-boat-explosion-at-gatineauhttp://www.ottawasun.com/2015/07/11/man-burned-in-boat-explosion-at-gatineau -marina Jim Watts Paradigm Shift CC 35 Mk III ___ Email address: CnC-List@cnc-list.com To change your list preferences, including unsubscribing -- go to the bottom of page at: http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com ___ Email address: CnC-List@cnc-list.com To change your list preferences, including unsubscribing -- go to the bottom of page at: http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com
Re: Stus-List Exploding CC
And then you have this. Not a CC, a Nelson Marek I believe - http://www.simcoereformer.ca/2015/07/17/sailboat-catches-fire-sinks-on-lake- erie Draw your own conclusions. Bill Coleman CC 39 Erie, PA From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Jim Watts via CnC-List Sent: Saturday, July 11, 2015 8:29 PM To: 1 CnC List Cc: Jim Watts Subject: Stus-List Exploding CC It sounds like the injuries weren't too bad, we can hope...ouch. Looks like a 30? http://www.ottawasun.com/2015/07/11/man-burned-in-boat-explosion-at-gatineau -marina Jim Watts Paradigm Shift CC 35 Mk III Victoria, BC attachment: winmail.dat___ Email address: CnC-List@cnc-list.com To change your list preferences, including unsubscribing -- go to the bottom of page at: http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com
Re: Stus-List CC 37+ Repower -- Ugh
Edd, Just curious if you had to destroy your old engine and send them proof of that. My buddy just ordered a 75 HP Beta from NC and B4 they would ship if from England, he had to remove the head, drill a hole through the cylinder wall, and send several pix to them, Something to do with tier 3 or 4 or something, emissions. Regards, Bill Coleman From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Edd Schillay via CnC-List Sent: Friday, July 10, 2015 12:25 PM To: cnc-list@cnc-list.com Cc: Edd Schillay Subject: Re: Stus-List CC 37+ Repower -- Ugh Joel, I purchased a Beta 30 from Beta Marine in NC. The engine has almost exactly the same specs as the old Universal M-35, including the 16” mounts. The people at Beta, especially Farron Peffer, have been tremendously helpful during each step of the process. They answer every question and offer up advice easily. Could not imagine a better outfit in terms of service. The engine is now in and all of the connections are being made today. A new shaft is also going in (insert your own “Edd’s shaft wasn’t long enough” jokes here.) In the end, I expect to have the Enterprise back by Monday. It’s been a long, somewhat expensive, journey, but the end is in sight. All the best, Edd Edd M. Schillay Starship Enterprise CC 37+ | Sail No: NCC-1701-B City Island, NY Starship Enterprise's http://enterpriseb.blogspot.com/ Captain's Log On Jul 10, 2015, at 12:18 PM, Joel Aronson via CnC-List cnc-list@cnc-list.com wrote: Edd What did you end up doing? Joel ___ Email address: CnC-List@cnc-list.com To change your list preferences, including unsubscribing -- go to the bottom of page at: http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com
Re: Stus-List head question-lubrication
I remember reading on one of the cruising forums to use Baby Oil. Tried that, and now my Skipper really feels like the rubber in the pump is galling. (plus, yes, it probably puts a coating in the holding tank) I went back to the Thetford lubricant, and it works good after that, but It doesn't last long. Think I am going to have to rebuild the seals, maybe I will stick to the thetford stuff after that. I get it at the RV store, cheaper. Regards, Bill Coleman From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Andrew Burton via CnC-List Sent: Thursday, July 16, 2015 12:29 PM To: cnc-list@cnc-list.com Cc: Andrew Burton Subject: Re: Stus-List head question-lubrication I used to use olive oil, but my feeling now is that would leave a film on top of the liquid in the holding tank, preventing air from getting at it, which would result on a foul odor. Perhaps one of the dedicated head lubes would be the ticket. Andy CC 40 Peregrine On Thu, Jul 16, 2015 at 12:21 PM, Alex Giannelia via CnC-List cnc-list@cnc-list.com wrote: So, how is the Jabsco head lubricated? Just toss Crisco in the bowl and flush? Mine was out of use for a while and appears to work, but squeaks a bit and feels stiff.  Thanks,  Alex Giannelia a...@airsensing.com (416) 203-9858 tel:%28416%29%20203-9858  ___ Email address: CnC-List@cnc-list.com To change your list preferences, including unsubscribing -- go to the bottom of page at: http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com -- Andrew Burton 61 W Narragansett Ave Newport, RI USA 02840 http://sites.google.com/site/andrewburtonyachtservices/ phone +401 965 5260 attachment: winmail.dat___ Email address: CnC-List@cnc-list.com To change your list preferences, including unsubscribing -- go to the bottom of page at: http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com
Re: Stus-List Best EngineYanmar 3GM + Prop?
Brian, I have a Martec Elliptical prop 16 by 14. I have been pretty happy with it. I cruise at 2850 rpm and make about 6.5 kts. I ran it that way for 13.5 hours yesterday with no issues. Not much wind on the Chesapeake in July... The prop pushes the boat just fine. No cavitation. My prop is well over ten years old and probably due for a rebuild, but it doesn't make much noise. Reverse performance isn't great, but adding a good amount of throttle (initially) gets the job done. I've never had problems stopping the boat in the slip, although I usually back in. Jake Jake Brodersen Midnight Mistress CC 35 Mk-III Hampton VA -Original Message- From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Nauset Beach via CnC-List Sent: Tuesday, July 21, 2015 10:31 AM To: cnc-list@cnc-list.com Cc: Nauset Beach Subject: Stus-List Best EngineYanmar 3GM + Prop? John, Mike and any others with a Yanmar 3GM30F What is the make, diameter and pitch of your props, and can you get to the one hour rated RPM of 3600? Back in 2010 I had an engine overheat alarm and discovered the coolant overflow tank was full and had an amount of oily substance mixed in. There was very little coolant left in the engine. The mechanic discovered a blown head gasket was the cause. The head was sent to a shop to be rebuilt and a few other parts replaced. Last month [just after Edd's engine woes came to light] I had another overheat alarm, and again discovered the coolant tank full and the same oil mix. Am assuming the head gasket is blown - again. The mechanic has not looked at it yet. Obviously, something is wrong. The July edition of Cruising World had a timely article about props and stated an over pitched prop puts additional wear on the engine and can lead to cavitation. Nothing new there but started a possible theory. I have not had dark exhaust so did not think the prop was over-pitched, but there is some pitting on the prop blades so maybe there is cavitation and an over loaded engine. Also have excessive vibration so the clues seem to be going in that direction. I rarely take the engine up to 3000 RPM though did have a several hour delivery at 3200 this spring. Have never tried but do not think I could get up to 3600. [Have read the Yanmar tach's are not all that accurate and have not had the RPM's verified independently.] Still this seems to be another indicator the prop may be over pitched. I originally had a Martec folding 16 D x 14 P prop though after the lack of much reverse led to a near miss incident I replaced it in 2002 with a Flex-O-Fold with a 16 D x 13 P at the recommendation of Flex o Fold. The reduction is 2.61. Am thinking the increased surface area Flex prop is overloading the engine even though the pitch was decreased by 1 compared to the Martec. Anyone have any thoughts? Thanks, Brian ___ Email address: CnC-List@cnc-list.com To change your list preferences, including unsubscribing -- go to the bottom of page at: http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com
Re: Stus-List head question-lubrication
I have been using cheap vegetable oil for years with good results. I am in fresh water. From: Bill Coleman via CnC-List Sent: Tuesday, July 21, 2015 5:45 PM To: cnc-list@cnc-list.com Cc: Bill Coleman I remember reading on one of the cruising forums to use Baby Oil. Tried that, and now my Skipper really feels like the rubber in the pump is galling. (plus, yes, it probably puts a coating in the holding tank) I went back to the Thetford lubricant, and it works good after that, but It doesn't last long. Think I am going to have to rebuild the seals, maybe I will stick to the thetford stuff after that. I get it at the RV store, cheaper. Regards, Bill Coleman From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Andrew Burton via CnC-List Sent: Thursday, July 16, 2015 12:29 PM To: cnc-list@cnc-list.com Cc: Andrew Burton Subject: Re: Stus-List head question-lubrication I used to use olive oil, but my feeling now is that would leave a film on top of the liquid in the holding tank, preventing air from getting at it, which would result on a foul odor. Perhaps one of the dedicated head lubes would be the ticket. Andy CC 40 Peregrine On Thu, Jul 16, 2015 at 12:21 PM, Alex Giannelia via CnC-List cnc-list@cnc-list.com wrote: So, how is the Jabsco head lubricated? Just toss Crisco in the bowl and flush? Mine was out of use for a while and appears to work, but squeaks a bit and feels stiff.  Thanks,  Alex Giannelia a...@airsensing.com (416) 203-9858 tel:%28416%29%20203-9858  ___ Email address: CnC-List@cnc-list.com To change your list preferences, including unsubscribing -- go to the bottom of page at: http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com -- Andrew Burton 61 W Narragansett Ave Newport, RI USA 02840 http://sites.google.com/site/andrewburtonyachtservices/ phone +401 965 5260___ Email address: CnC-List@cnc-list.com To change your list preferences, including unsubscribing -- go to the bottom of page at: http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com
Re: Stus-List Exploding CC
I was wondering if we would hear from you on that one Bill. It would be interesting to hear what the owner had to say about what happened. Precious little in the news reports. He couldn't put the fire out, escaped in the Zodiac, and the coast guard took him back home. That was about it. Steve Thomas CC27 MKIII Port Stanley, ON - Original Message - From: Bill Coleman via CnC-List cnc-list@cnc-list.com To: cnc-list@cnc-list.com Cc: Bill Coleman colt...@verizon.net Sent: Tuesday, July 21, 2015 17:47 Subject: Re: Stus-List Exploding CC And then you have this. Not a CC, a Nelson Marek I believe - http://www.simcoereformer.ca/2015/07/17/sailboat-catches-fire-sinks-on-lake- erie Draw your own conclusions. Bill Coleman CC 39 Erie, PA From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Jim Watts via CnC-List Sent: Saturday, July 11, 2015 8:29 PM To: 1 CnC List Cc: Jim Watts Subject: Stus-List Exploding CC It sounds like the injuries weren't too bad, we can hope...ouch. Looks like a 30? http://www.ottawasun.com/2015/07/11/man-burned-in-boat-explosion-at-gatineau -marina Jim Watts Paradigm Shift CC 35 Mk III Victoria, BC ___ Email address: CnC-List@cnc-list.com To change your list preferences, including unsubscribing -- go to the bottom of page at: http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com ___ Email address: CnC-List@cnc-list.com To change your list preferences, including unsubscribing -- go to the bottom of page at: http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com
Stus-List hypalon glue
So, I bought the $50. NRS hypalon glue and accelerator. I used it to attach D ring pads to my hypalon inflatable. The D rings attached to the davit lines - one port and one starboard near the bow. Didn't hold. Don't want to spend another $50 on glue - that's 1/8 the price of the entire dink. Thinkin' about trying weldwood contact cement. Toluol based, supposed to adhere to neoprene and rubber. Will it work? Dan SheerPegathy LF 38Rock Creek off the Patapsco ___ Email address: CnC-List@cnc-list.com To change your list preferences, including unsubscribing -- go to the bottom of page at: http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com
Re: Stus-List Exploding CC
Sounded like an A4, no? On Tue, Jul 21, 2015 at 3:45 PM S Thomas via CnC-List cnc-list@cnc-list.com wrote: I was wondering if we would hear from you on that one Bill. It would be interesting to hear what the owner had to say about what happened. Precious little in the news reports. He couldn't put the fire out, escaped in the Zodiac, and the coast guard took him back home. That was about it. Steve Thomas CC27 MKIII Port Stanley, ON - Original Message - From: Bill Coleman via CnC-List cnc-list@cnc-list.com To: cnc-list@cnc-list.com Cc: Bill Coleman colt...@verizon.net Sent: Tuesday, July 21, 2015 17:47 Subject: Re: Stus-List Exploding CC And then you have this. Not a CC, a Nelson Marek I believe - http://www.simcoereformer.ca/2015/07/17/sailboat-catches-fire-sinks-on-lake- erie Draw your own conclusions. Bill Coleman CC 39 Erie, PA From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Jim Watts via CnC-List Sent: Saturday, July 11, 2015 8:29 PM To: 1 CnC List Cc: Jim Watts Subject: Stus-List Exploding CC It sounds like the injuries weren't too bad, we can hope...ouch. Looks like a 30? http://www.ottawasun.com/2015/07/11/man-burned-in-boat-explosion-at-gatineau -marina Jim Watts Paradigm Shift CC 35 Mk III Victoria, BC ___ Email address: CnC-List@cnc-list.com To change your list preferences, including unsubscribing -- go to the bottom of page at: http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com ___ Email address: CnC-List@cnc-list.com To change your list preferences, including unsubscribing -- go to the bottom of page at: http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com ___ Email address: CnC-List@cnc-list.com To change your list preferences, including unsubscribing -- go to the bottom of page at: http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com
Re: Stus-List westerbeake sucking in air on a half tank
Update, I pulled the suction tube and found the strainer to be gummed up. I am almost certain this was the cause. So my hypothesis is that in high seas and full RPMs debris got stirred up from the bottom of the tank and clogged the mesh at the bottom of pickup tube. After stopping the engine and adding 5 more gallons from jerry can it’s likely that debris got loose and freed up the filter mesh enough to allow me to bleed and start the engine. So as per one your recommendations, I cut the strainer part of the pickup tube. I will just look at primary fuel filter for signs of gumming up. The tube itself is of flexible rubber or plastic material so it had no holes or corrosion. That material is obviously not dissolvable as I’ve had it since I owned the boat, and it’s still in good condition. On another note, my fuel sender stopped working indicating always empty. After ohming out the terminals at the top of the tank, I discovered that it was the variable resistance mechanism that is sitting in the tank. Ended up ordering a new one that has fuel return fitting on it. While at it, I made sure that air vent hose is clear and free of clogging. Anyone know what minimum size intake fuel line should be for a 40HP diesel. W40? I am just wondering if that line is too small so at high RPM engine might be starving. It appears to be either 3/16” or ¼”. I have to double check. Thanks. Petar Horvatic Sundowner 76 CC 38MkII Newport, RI On Jul 10, 2015, at 12:40, Petar Horvatic via CnC-List cnc-list@cnc-list.com wrote: Update: So half tank gauge reading was about half tank. After another 5Gal jerry can I was full to the top. So two 5gal cans got me to the top. Tank is 20 gallons. I did not pull the tube yet. Not sure if this matters, but I noticed that my return line form injection pump Tees into the vent line just before it goes to the tank. I opted to do this since I didn’t have another hole in the tank. It used to be a gasoline engine tank. And those don’t have return. Heading to block again tonight after work. No wind and seas are lot calmer. It will be a straight 4h motorsail. Once I get there, fuel level in the tank will be down enough to pull the pickup tube and see how low it goes. Does anyone know if I need to bleed the injectors again after disconnecting the fuel line at the tank to inspect the pickup tube? My intuition says yes. Petar Horvatic Sundowner 76 CC 38MkII Newport, RI From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Joel Aronson via CnC-List Sent: Monday, July 06, 2015 11:29 AM To: cnc-list@cnc-list.com Cc: Joel Aronson Subject: Re: Stus-List westerbeake sucking in air on a half tank Peter, How low did the gauge read? How much did you think you had before adding the 5 gallons? What did it read after? Did you top it off and see of the numbers added up? I agree it sounds like a plumbing issue with the vent or pickup. I hope your access to the tank is better than mine! Joel 35/3 Annapolis On Mon, Jul 6, 2015 at 9:36 AM, Petar Horvatic via CnC-List cnc-list@cnc-list.com wrote: So if the pickup was blocked, why on both occasions after bleeding(once in calm water and second time in rough water but after adding 5 more gallons to the tank) it ran without a problem for hours, 2nd time in the same rough seas. The tank was out (dried out and inspected) over the winter in 2011/2012. So was the pickup and sender at which time I don’t remember seeing any signs of corrosion etc. It might be good to mention that prior to 2012, I had atomic 4 (gasoline) engine. I put westrerbeake in the spring of 2012 after a full rebuild. I kept the tank. Hoses were all new. My primary is the Racor 230R Diesel Spin-On Series filter/water separator. I change that and secondary filter every commissioning. No signs of water whatsoever. Also fuel that comes out while bleeding is clean. From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Paul Fountain via CnC-List Sent: Monday, July 06, 2015 9:18 AM To: cnc-list@cnc-list.com Cc: Paul Fountain Subject: Re: Stus-List westerbeake sucking in air on a half tank Or the pickup becomes blocked, and air gets sucked in elsewhere in the fuel system. Paul Fountain From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Frederick G Street via CnC-List Sent: Monday, July 6, 2015 9:12 AM To: cnc-list@cnc-list.com Cc: Frederick G Street Subject: Re: Stus-List westerbeake sucking in air on a half tank Petar — it might be that the fuel pickup tube is corroded, and either doesn’t drop as far down into the fuel as it should/used to, or you have some pits in it above the half-tank level that allow air it. Sounds like time to pull and check it. Fred Street -- Minneapolis S/V Oceanis (1979 CC Landfall 38) -- Bayfield, WI On Jul
Stus-List Best EngineYanmar 3GM + Prop?
John, Mike and any others with a Yanmar 3GM30F What is the make, diameter and pitch of your props, and can you get to the one hour rated RPM of 3600? Back in 2010 I had an engine overheat alarm and discovered the coolant overflow tank was full and had an amount of oily substance mixed in. There was very little coolant left in the engine. The mechanic discovered a blown head gasket was the cause. The head was sent to a shop to be rebuilt and a few other parts replaced. Last month [just after Edd's engine woes came to light] I had another overheat alarm, and again discovered the coolant tank full and the same oil mix. Am assuming the head gasket is blown - again. The mechanic has not looked at it yet. Obviously, something is wrong. The July edition of Cruising World had a timely article about props and stated an over pitched prop puts additional wear on the engine and can lead to cavitation. Nothing new there but started a possible theory. I have not had dark exhaust so did not think the prop was over-pitched, but there is some pitting on the prop blades so maybe there is cavitation and an over loaded engine. Also have excessive vibration so the clues seem to be going in that direction. I rarely take the engine up to 3000 RPM though did have a several hour delivery at 3200 this spring. Have never tried but do not think I could get up to 3600. [Have read the Yanmar tach's are not all that accurate and have not had the RPM's verified independently.] Still this seems to be another indicator the prop may be over pitched. I originally had a Martec folding 16 D x 14 P prop though after the lack of much reverse led to a near miss incident I replaced it in 2002 with a Flex-O-Fold with a 16 D x 13 P at the recommendation of Flex o Fold. The reduction is 2.61. Am thinking the increased surface area Flex prop is overloading the engine even though the pitch was decreased by 1 compared to the Martec. Anyone have any thoughts? Thanks, Brian -Original Message- From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Hoyt, Mike via CnC-List Sent: Tuesday, July 14, 2015 12:39 PM To: cnc-list@cnc-list.com Cc: Hoyt, Mike Subject: Re: Stus-List Best Engine? We have Yanmar 3GM30F in our Ferrs 33 which is similar hull shape to CC33-2. We make 6.2 at 2300 RPM and can just squeak out 7.0 at WOT Mike Persistence -Original Message- From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of John and Maryann Read via CnC-List Sent: Tuesday, July 14, 2015 8:19 AM To: cnc-list@cnc-list.com Cc: John and Maryann Read Subject: Re: Stus-List Best Engine? HI Brian Our 34 has the Yanmar 3GM with Martec folding prop. Clean bottom cruising is 5.5, max is about 6. As I recall, your max speed is supposed to be about 80% of theoretical hull speed with throttle wide open?? Another variable is the calibration of the knotometer and if using the GPS the impact of current John and Maryann Legacy III 1982 CC 34 Noank, CT - Original Message - From: Brian Morrison via CnC-List cnc-list@cnc-list.com To: cnc-list@cnc-list.com Cc: Brian Morrison brianm...@hotmail.com Sent: Tuesday, July 14, 2015 00:47 Subject: Stus-List Best Engine? Hello, I often sail with a group of sailors that have more modern and somewhat larger boats than my 1979 CC34. When there is no wind and we are forced to motor I have difficulty keeping up. With a clean bottom my cruising speed is about 5-5.5 knots. I have an Atomic 4 engine. I'm wondering would a Yanmar or a Westerbeke give me 7+ knots? Brian C. Morrison ___ Email address: CnC-List@cnc-list.com To change your list preferences, including unsubscribing -- go to the bottom of page at: http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com
Re: Stus-List Best EngineYanmar 3GM + Prop?
It sounds to me like you may be over-revving your engine. My rule of thumb with my boat (same engine as you) and when I get on a boat I'm delivering, is to get into open water and, in gear, push the throttle wide open. My cruising RPM is no more than 75% of that number, which on Peregrine works out to 2200 or so. Andy CC 40 Peregrine On Tue, Jul 21, 2015 at 10:31 AM, Nauset Beach via CnC-List cnc-list@cnc-list.com wrote: John, Mike and any others with a Yanmar 3GM30F What is the make, diameter and pitch of your props, and can you get to the one hour rated RPM of 3600? Back in 2010 I had an engine overheat alarm and discovered the coolant overflow tank was full and had an amount of oily substance mixed in. There was very little coolant left in the engine. The mechanic discovered a blown head gasket was the cause. The head was sent to a shop to be rebuilt and a few other parts replaced. Last month [just after Edd's engine woes came to light] I had another overheat alarm, and again discovered the coolant tank full and the same oil mix. Am assuming the head gasket is blown - again. The mechanic has not looked at it yet. Obviously, something is wrong. The July edition of Cruising World had a timely article about props and stated an over pitched prop puts additional wear on the engine and can lead to cavitation. Nothing new there but started a possible theory. I have not had dark exhaust so did not think the prop was over-pitched, but there is some pitting on the prop blades so maybe there is cavitation and an over loaded engine. Also have excessive vibration so the clues seem to be going in that direction. I rarely take the engine up to 3000 RPM though did have a several hour delivery at 3200 this spring. Have never tried but do not think I could get up to 3600. [Have read the Yanmar tach's are not all that accurate and have not had the RPM's verified independently.] Still this seems to be another indicator the prop may be over pitched. I originally had a Martec folding 16 D x 14 P prop though after the lack of much reverse led to a near miss incident I replaced it in 2002 with a Flex-O-Fold with a 16 D x 13 P at the recommendation of Flex o Fold. The reduction is 2.61. Am thinking the increased surface area Flex prop is overloading the engine even though the pitch was decreased by 1 compared to the Martec. Anyone have any thoughts? Thanks, Brian -Original Message- From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Hoyt, Mike via CnC-List Sent: Tuesday, July 14, 2015 12:39 PM To: cnc-list@cnc-list.com Cc: Hoyt, Mike Subject: Re: Stus-List Best Engine? We have Yanmar 3GM30F in our Ferrs 33 which is similar hull shape to CC33-2. We make 6.2 at 2300 RPM and can just squeak out 7.0 at WOT Mike Persistence -Original Message- From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of John and Maryann Read via CnC-List Sent: Tuesday, July 14, 2015 8:19 AM To: cnc-list@cnc-list.com Cc: John and Maryann Read Subject: Re: Stus-List Best Engine? HI Brian Our 34 has the Yanmar 3GM with Martec folding prop. Clean bottom cruising is 5.5, max is about 6. As I recall, your max speed is supposed to be about 80% of theoretical hull speed with throttle wide open?? Another variable is the calibration of the knotometer and if using the GPS the impact of current John and Maryann Legacy III 1982 CC 34 Noank, CT - Original Message - From: Brian Morrison via CnC-List cnc-list@cnc-list.com To: cnc-list@cnc-list.com Cc: Brian Morrison brianm...@hotmail.com Sent: Tuesday, July 14, 2015 00:47 Subject: Stus-List Best Engine? Hello, I often sail with a group of sailors that have more modern and somewhat larger boats than my 1979 CC34. When there is no wind and we are forced to motor I have difficulty keeping up. With a clean bottom my cruising speed is about 5-5.5 knots. I have an Atomic 4 engine. I'm wondering would a Yanmar or a Westerbeke give me 7+ knots? Brian C. Morrison ___ Email address: CnC-List@cnc-list.com To change your list preferences, including unsubscribing -- go to the bottom of page at: http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com -- Andrew Burton 61 W Narragansett Ave Newport, RI USA 02840 http://sites.google.com/site/andrewburtonyachtservices/ phone +401 965 5260 ___ Email address: CnC-List@cnc-list.com To change your list preferences, including unsubscribing -- go to the bottom of page at: http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com
