Stus-List Re: vented loops

[Korbey Hunt via CnC-List]

Good to do an acid soak every few years.

Get Outlook for Android

From: CHARLES SCHEAFFER via CnC-List 
Sent: Wednesday, June 29, 2022 2:19:34 PM
To: CNC boat owners, cnc-list 
Cc: CHARLES SCHEAFFER 
Subject: Stus-List vented loops

Learned the hard way how to test vented loops.

I was changing engine hoses and came upon an original, 33 year old, bronze, 
vented loop for the engine cooling water.  It's located between the heat 
exchanger and the injection elbow of the exhaust riser.  It's purpose is to 
break a siphon and prevent water flooding the engine and the boat when the 
engine is off.  Mine was filled with scale and no longer operational.

The following comes from info included with a new Forespar vented loop.  To 
test a vented loop, you blow air through the vent from outside into the tubing, 
through the "duck bill" rubber thing, and that's it.  If air won't penetrate, 
it's clogged and should be cleaned.  If the thing leaks, it probably needs 
cleaning or a new rubber duck bill.

I replaced the Forespar rubber duckbill, $15, on my bilge pump hose and I 
replaced the entire loop fitting $44 on the engine hose using a Forespar 5/8" 
vented loop.  Now both of my vented loops use the same duckbill vent and have 
the same size retaining nut so a simple clear two foot length of 3/4" hose can 
be pushed over the fitting to facilitate testing either vented loop.

I have to add that I never had a problem in twenty years of ownership and 
ingnored these items until I started replacing hoses.  I'd be glad to hear 
anyone else's ideas on this.

Chuck S

Stus-List Re: diesel engine air filter

[Martin DeYoung via CnC-List]

For Calypso’s Perkins 4-108 which is under a lightweight box mostly in the 
cabin I went much more expensive and purchased an AirSep air 
cleaner/silencer/blow-by recycler system many years ago. It’s performance 
exceeded my expectations in all three. It helped reduce both noise and blow by 
smell.

I vacuum off the filter from time to time but otherwise it has been trouble 
free.

Martin DeYoung
Calypso
1971 C 43
Port Ludlow/Seattle

On Jul 1, 2022, at 3:13 PM, Josh via CnC-List  wrote:

In the first minute of the video you'll see my solution for high flow AND high 
efficiency air filter at a reasonable price...well maybe not reasonable - 
$48.98!!!

AEM 21-2201DK DryFlow Air Filter

Josh Muckley
S/V Sea Hawk
1989 C 37+
Solomons, MD


Jun 29, 2022 16:52:12 CHARLES SCHEAFFER via CnC-List :

Hey guys,

A new air filter for my Universal M4-30 cost $17….

Anybody know of a better air filter for a diesel engine like mine?

Chuck Scheaffer Resolute 1989 C 34R

Stus-List Re: diesel engine air filter

[Josh Muckley via CnC-List]

Neil, you're not wrong about the air being relatively clean but everyone
should consider just how small 5 microns is while also remembering the last
time the sound deadening material disintegrated all over the engine
compartment.  Its also fascinating the speed at which the bilge gets dirty
on a clean boat.  If the air truly is clean then ANY filter should last
forever.  If, on the other hand, there is some mishap then any filter will
help mitigate damage to the engine.

Josh Muckley
S/V Sea Hawk
1989 C 37+
Solomons, MD

On Fri, Jul 1, 2022, 20:03 schiller via CnC-List 
wrote:

> So, not to get into the middle of this, but air filters are designed to
> remove dust particles from the air.  My tractors have oil filled air
> filters to accomplish this.  A boat, operating on a body of water is not in
> a high dust environment.  I figured this out with my first Atomic 4, that
> did not have an air filter and explained it as not being in a high dust
> environment.  There are a lot of antique motorcycles that have open
> ventures that have existed much longer than our boats. I am not opposed to
> air filters, but our environment is not one that screams for anything other
> than a silencer.
>
> Neil Schiller
> 1983 C 35-3, #028, "Grace"
> Whitehall, Michigan
>
> On 7/1/2022 6:12 PM, Josh via CnC-List wrote:
>
> https://www.youtube.com/watch?v=H-GI38vE4hQ
>
> In the first minute of the video you'll see my solution for high flow AND
> high efficiency air filter at a reasonable price...well maybe not
> reasonable - $48.98!!!
>
> AEM 21-2201DK DryFlow Air Filter https://a.co/d/i5pGWhj
>
> Josh Muckley
> S/V Sea Hawk
> 1989 C 37+
> Solomons, MD
>
> Jun 29, 2022 16:52:12 CHARLES SCHEAFFER via CnC-List
>  :
>
> Hey guys,
>
> A new air filter for my Universal M4-30 cost $17 and which seems expensive
> for a simple ring of foam rubber sown like a bracelet.  I removed the old
> oil caked foam from the little screen and cleaned it up with solvent before
> installing the new one and had to flatten the venturi to get a good fit.
> The parts guy said it was more of a silencer than a filter.  Anybody know
> of a better air filter for a diesel engine like mine?
>
> Chuck Scheaffer Resolute 1989 C 34R
>
> On 06/29/2022 2:10 PM Korbey Hunt via CnC-List 
>  wrote:
>
>
> Good to know.  Ill check my 30 hp Yanmar.  Last sumner running at WOT for
> 1/2 hour the motor shut down.  It restarted easily and ran fine.  I cleaned
> the fuel strainer but found no issues.  Ill replace the air filter.
>
> Get Outlook for Android 
> --
> *From:* Dave S via CnC-List 
> 
> *Sent:* Wednesday, June 29, 2022 10:06:46 AM
> *To:* Stus-List  
> *Cc:* Dave S  
> *Subject:* Stus-List Re: Yanmar 2 GMF
>
> Good to hear.   How the heck did the old one get that clogged?   Bad
> decade for mosquitoes?
>
> Dave
>
>
>
> On Tue, 28 Jun 2022 at 22:19, Robert Abbott via CnC-List <
> cnc-list@cnc-list.com> wrote:
>
>
> While I awaited another day for a marine mechanic to get around to
> addressing my engine problem, while on the boat today, I thought of
> something.I had a new Yanmar air filter on the boat which I got last
> year, which I thought what harm could a new air filter dochanged out
> the old one and replaced with new one, and guess what, in neutral, the
> engine revived up to 3,400 before i stoppedran the engine in forward
> gear at the slip for another 20 minutes shut the engine
> off...started again...revved up and downengine works as it should.
>
> The problem was a lack of airexplains where the smoke was coming
> fromincomplete combustion...now, with the new air filter, no smoke.
>
> Thanks to everyone for thoughts/possibilities of what might be the cause
> of my engine issue.
>
> Going for a sail tomorrow.
>
> Rob Abbott
> AZURA
> C 32 - #277
> Halifax, N.S.
>
>
>

Stus-List Re: diesel engine air filter

[schiller via CnC-List]

So, not to get into the middle of this, but air filters are designed to 
remove dust particles from the air.  My tractors have oil filled air 
filters to accomplish this.  A boat, operating on a body of water is not 
in a high dust environment.  I figured this out with my first Atomic 4, 
that did not have an air filter and explained it as not being in a high 
dust environment. There are a lot of antique motorcycles that have open 
ventures that have existed much longer than our boats. I am not opposed 
to air filters, but our environment is not one that screams for anything 
other than a silencer.


Neil Schiller
1983 C 35-3, #028, "Grace"
Whitehall, Michigan

On 7/1/2022 6:12 PM, Josh via CnC-List wrote:

https://www.youtube.com/watch?v=H-GI38vE4hQ

In the first minute of the video you'll see my solution for high flow 
AND high efficiency air filter at a reasonable price...well maybe not 
reasonable - $48.98!!!


AEM 21-2201DK DryFlow Air Filter https://a.co/d/i5pGWhj

Josh Muckley
S/V Sea Hawk
1989 C 37+
Solomons, MD

Jun 29, 2022 16:52:12 CHARLES SCHEAFFER via CnC-List 
:


Hey guys,

A new air filter for my Universal M4-30 cost $17 and which seems
expensive for a simple ring of foam rubber sown like a bracelet. 
I removed the old oil caked foam from the little screen and
cleaned it up with solvent before installing the new one and had
to flatten the venturi to get a good fit.  The parts guy said it
was more of a silencer than a filter.  Anybody know of a better
air filter for a diesel engine like mine?

Chuck Scheaffer Resolute 1989 C 34R

On 06/29/2022 2:10 PM Korbey Hunt via CnC-List
 wrote:


Good to know.  Ill check my 30 hp Yanmar.  Last sumner running at
WOT for 1/2 hour the motor shut down.  It restarted easily and
ran fine.  I cleaned the fuel strainer but found no issues.  Ill
replace the air filter.

Get Outlook for Android 

*From:* Dave S via CnC-List 
*Sent:* Wednesday, June 29, 2022 10:06:46 AM
*To:* Stus-List 
*Cc:* Dave S 
*Subject:* Stus-List Re: Yanmar 2 GMF

Good to hear.   How the heck did the old one get that clogged? 
 Bad decade for mosquitoes?

Dave



On Tue, 28 Jun 2022 at 22:19, Robert Abbott via CnC-List
 wrote:


While I awaited another day for a marine mechanic to get
around to
addressing my engine problem, while on the boat today, I
thought of
something.    I had a new Yanmar air filter on the boat which
I got last
year, which I thought what harm could a new air filter
dochanged out
the old one and replaced with new one, and guess what, in
neutral, the
engine revived up to 3,400 before i stoppedran the engine
in forward
gear at the slip for another 20 minutes shut the engine
off...started again...revved up and downengine works as
it should.

The problem was a lack of airexplains where the smoke was
coming
fromincomplete combustion...now, with the new air filter,
no smoke.

Thanks to everyone for thoughts/possibilities of what might
be the cause
of my engine issue.

Going for a sail tomorrow.

Rob Abbott
AZURA
C 32 - #277
Halifax, N.S.

Stus-List Re: Yanmar 2 GMF

[Josh via CnC-List]

Amsoil has some pretty interesting resources regarding "high flow" air filters. 
 They sat that some very high percentage of wear occurs as a result of 
particles smaller than 5 microns.  Well if you oil filter only gets brtween 10 
and 20 microns then what is one to do?  Additionally were would particles that 
small come from?  Their answer is that they come from the air and that 
preventing the intake of those particles is critical to keeping them out of the 
engine oil.  Of course they sell air filters that filter below the 5 micron 
size but of note is their statement that filters like K are capable of 
achieving high flow due to their large media pore size.  In fact its not really 
media at all but rather a cotton gause which often relies on a sticky oil to 
catch the dirt.   I'll see if I can find the publication.  It was enough for me 
to stop using K and instead look for oversized options with small micron 
ratings.  Of course anything is better than the Yanmar sponge...or worse a 
yanmar sponge disintegrating into the engine.

Josh Muckley
S/V Sea Hawk
1989 C 37+
Solomons, MD

Jun 30, 2022 07:53:34 John Irvin via CnC-List :

> Have used K in my vehicles for decades. Very satisfied. Should work in 
> boats.
> 
> Sent from my iPhone
> 
> On Jun 29, 2022, at 9:31 PM, Dave via CnC-List  wrote:
> 
> 
> 
> We have met the enemy, and he is us!  Lol
> 
> Mine also disintegrated, and the particles were ingested by the engine.   
> Seems a bit ironic for an air filter to expire this way, though oddly just 
> for failing to replace it.  
> 
> You too were punished.   Karma.
> 
>  
> 
> Glad it worked out.
> 
>  
> 
> Dave
> 
>  
>  
> 
> Sent from 
> Mail[https://nam12.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgo.microsoft.com%2Ffwlink%2F%3FLinkId%3D550986=05%7C01%7C%7C042808cf6ecf40ae06a908da5a3848b7%7C84df9e7fe9f640afb435%7C1%7C0%7C637921495026483917%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C=MYgkeIs0%2FcluqOadNRcsJVXbPpzeRje7bPp5lGSeHPA%3D=0]
>  for Windows
> 
>  
> *From: *Robert Abbott[robertabb...@eastlink.ca]
> *Sent: *June 29, 2022 6:18 PM
> *To: *Stus-List[cnc-list@cnc-list.com]
> *Cc: *Dave S[syerd...@gmail.com]
> *Subject: *Yanmar 2 GMF
>  
> 
> Dave,
> 
> The truth be known, genius here 2 or 3 years ago took the old filter out and 
> it had pretty much had been disintegratednot having a new Yanmar air 
> filter, but the old metal ring, I took a piece of a sponge and cut it to fit 
> into the metal ring and thought it was all O.K.   The sponge will filter the 
> air.    Right?
> 
> Well no, it did work for a while but a genuine Yanmar air filter works 
> better.as I found out.
> 
> There, I confessedit was me that caused the problem.   The new Yanmar air 
> filter cost $45 here which seems like a lot for a simple device.  But $45 is 
> not a lot when the pain, angst, and disruption of one's sailing season is in 
> jeopardy.
> 
> Rob Abbott
> AZURA
> C 32 - #277
> Halifax, N.S.
> 
> 
> On 2022-06-29 2:06 p.m., Dave S via CnC-List wrote:
> 
> Good to hear.   How the heck did the old one get that clogged?   Bad decade 
> for mosquitoes?  
> 
>  
> 
> Dave
> 
>  
>  
>  
> 
> On Tue, 28 Jun 2022 at 22:19, Robert Abbott via CnC-List 
>  wrote:
> 
> 
> While I awaited another day for a marine mechanic to get around to
> addressing my engine problem, while on the boat today, I thought of
> something.    I had a new Yanmar air filter on the boat which I got last
> year, which I thought what harm could a new air filter dochanged out
> the old one and replaced with new one, and guess what, in neutral, the
> engine revived up to 3,400 before i stoppedran the engine in forward
> gear at the slip for another 20 minutes shut the engine
> off...started again...revved up and downengine works as it should.
> 
> The problem was a lack of airexplains where the smoke was coming
> fromincomplete combustion...now, with the new air filter, no smoke.
> 
> Thanks to everyone for thoughts/possibilities of what might be the cause
> of my engine issue.
> 
> Going for a sail tomorrow.
> 
> Rob Abbott
> AZURA
> C 32 - #277
> Halifax, N.S.
> 
> 
>  
>  

Stus-List Re: diesel engine air filter

[Josh via CnC-List]

https://www.youtube.com/watch?v=H-GI38vE4hQ

In the first minute of the video you'll see my solution for high flow AND high 
efficiency air filter at a reasonable price...well maybe not reasonable - 
$48.98!!!

AEM 21-2201DK DryFlow Air Filter https://a.co/d/i5pGWhj

Josh Muckley
S/V Sea Hawk
1989 C 37+
Solomons, MD

Jun 29, 2022 16:52:12 CHARLES SCHEAFFER via CnC-List :

> Hey guys,
> 
> A new air filter for my Universal M4-30 cost $17 and which seems expensive 
> for a simple ring of foam rubber sown like a bracelet.  I removed the old oil 
> caked foam from the little screen and cleaned it up with solvent before 
> installing the new one and had to flatten the venturi to get a good fit.  The 
> parts guy said it was more of a silencer than a filter.  Anybody know of a 
> better air filter for a diesel engine like mine?
> 
> Chuck Scheaffer Resolute 1989 C 34R
> On 06/29/2022 2:10 PM Korbey Hunt via CnC-List  wrote:
> 
> 
> Good to know.  Ill check my 30 hp Yanmar.  Last sumner running at WOT for 1/2 
> hour the motor shut down.  It restarted easily and ran fine.  I cleaned the 
> fuel strainer but found no issues.  Ill replace the air filter.
> 
> Get Outlook for Android[https://aka.ms/AAb9ysg]
> 
> *From:* Dave S via CnC-List 
> *Sent:* Wednesday, June 29, 2022 10:06:46 AM
> *To:* Stus-List 
> *Cc:* Dave S 
> *Subject:* Stus-List Re: Yanmar 2 GMF
> 
> Good to hear.   How the heck did the old one get that clogged?   Bad decade 
> for mosquitoes?  
> 
> Dave
> 
> 
> 
> On Tue, 28 Jun 2022 at 22:19, Robert Abbott via CnC-List 
>  wrote:
> 
> While I awaited another day for a marine mechanic to get around to
> addressing my engine problem, while on the boat today, I thought of
> something.    I had a new Yanmar air filter on the boat which I got last
> year, which I thought what harm could a new air filter dochanged out
> the old one and replaced with new one, and guess what, in neutral, the
> engine revived up to 3,400 before i stoppedran the engine in forward
> gear at the slip for another 20 minutes shut the engine
> off...started again...revved up and downengine works as it should.
> 
> The problem was a lack of airexplains where the smoke was coming
> fromincomplete combustion...now, with the new air filter, no smoke.
> 
> Thanks to everyone for thoughts/possibilities of what might be the cause
> of my engine issue.
> 
> Going for a sail tomorrow.
> 
> Rob Abbott
> AZURA
> C 32 - #277
> Halifax, N.S.
>