Re: Stus-List Overheating yanmar 3gm30

I have no idea. I use the orange stuff. -- Dennis C. Touche' 35-1 #83 Mandeville, LA On Thu, Aug 27, 2020 at 3:30 PM Ronald B. Frerker via CnC-List < cnc-list@cnc-list.com> wrote: > Dennis, is that any better than the ethylene gylcol standard, or the same > but more environmentally friendly?

Re: Stus-List Overheating yanmar 3gm30

Better? Maybe/maybe not. http://knowhow.napaonline.com/what-is-hoat-coolant-4-things-you-need-to-know/ Ethylene glycol isn't actually bad for the environment. It readily breaks down and degrades. It's just toxic to aminals should they ingest it. On the other hand, many other coolants may not

Re: Stus-List Overheating yanmar 3gm30

Dennis, is that any better than the ethylene gylcol standard, or the same but more environmentally friendly? Ron Wild Cheri C 30-1 STL On Thursday, August 27, 2020, 02:56:18 PM CDT, Dennis C. via CnC-List wrote: OAT coolant is pink.  OAT is an acronym for Organic Acid (Additive)

Re: Stus-List Overheating yanmar 3gm30

*OAT* coolant is pink. OAT is an acronym for Organic Acid (Additive) Technology which describes the type of materials responsible for the corrosion protection offered by a *coolant* of this type. It's still a marine and automotive coolant. -- Dennis C. Touche' 35-1 #83 Mandeville, LA

Re: Stus-List Overheating yanmar 3gm30

It was mentioned earlier, but bears repeating. Like the previous poster, I thought the pink stuff was for winterizing, not for engine coolant. I believe the pink stuff uses propylene glycol which is safe for drinking water systems. I thought the gold standard for engine coolant is still

Re: Stus-List Overheating yanmar 3gm30

Thanks everyone for the help here. Here is an update and what I did this morning. I took off beginning of every hose and blow in it to make sure there is no blockage somewhere. Then topped every hose with coolant manually. Some of them specially the top ones off the engine block did have

Re: Stus-List Overheating yanmar 3gm30

~~~_/) _/) ~~~ C 41 BULLET From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Matthew via CnC-List Sent: Wednesday, August 26, 2020 10:00 AM To: cnc-list@cnc-list.com Cc: Matthew Subject: Re: Stus-List Overheating yanmar 3gm30 What’s the pink good stuff? Around here

Re: Stus-List Overheating yanmar 3gm30

: Mazen Aziz Subject: Stus-List Overheating yanmar 3gm30 Hi everyone, Hope everyone is doing well and staying safe. So since I got the boat(C 35) 2 months ago, I have been doing all the typical engine Maintinance. I never touched an <https://www.cruisersforum.com/forums/tags/engine.html>

Re: Stus-List Overheating yanmar 3gm30

Mazen, Have you checked the amount of antifreeze? Try adding a little. When was the last time that the antifreeze system was flushed and cleaned, including the heat exchanger? All the best, Edd ———- Edd M. Schillay Captain of the “Starship Enterprise” C 37+ | Sail No.:

Re: Stus-List Overheating yanmar 3gm30

] On Behalf Of Mazen Aziz via CnC-List Sent: Tuesday, August 25, 2020 11:20 PM To: cnc-list@cnc-list.com Cc: Mazen Aziz Subject: [EXTERNAL] Re: Stus-List Overheating yanmar 3gm30 Hi josh, Yes sorry should have mentioned. Did these 2 steps as well. Thermostat is working fine and running the engine

Re: Stus-List Overheating Yanmar 3gm30

Just some thoughts based on our 3GM with Sender fresh water cooling 1) It is not normal for any hose to be dry 2) Check the fluid level in the Sendur heat exchanger. Run engine without radiator cap until thermostat opens allowing full coolant flow. Top off with anti freeze as

Re: Stus-List Overheating yanmar 3gm30

Hi josh, Yes sorry should have mentioned. Did these 2 steps as well. Thermostat is working fine and running the engine without the thermostat still didn’t help. Is that normal that the hose from the engine block to the heat exchanger is empty without coolant when I check it? MAZEN AZIZ

Re: Stus-List Overheating yanmar 3gm30

Sounds like you may have solved your own problem. If the one hose leading to the thermostat is cold and the other is hot then you should check that the thermostat is working. You can remove it and test in a pot of hot water. Or, you can even remove it and reassemble the engine (temporarily)

Stus-List Overheating yanmar 3gm30

Hi everyone, Hope everyone is doing well and staying safe. So since I got the boat(C 35) 2 months ago, I have been doing all the typical engine Maintinance. I never touched an engine before with absolutely no experience. Got the

Re: Stus-List Overheating Yanmar 3GMD

Al, I had a similar problem on a 3qm30 where it would overheat at anything above 1400 rpm. (normal cruise rpm was 2400). Here are somethings to check. How is the water flow out the exhaust, is it less than normal? Is the heat exchanger plugged or partially plugged. If you think you may have blown

Re: Stus-List Overheating Yanmar 3GMD

Just a suggestion, if it happens again, pull the hose off of the through hull supplying raw water to your Yanmar. Open the valve and you should get a face full of SF Bay. If not, you may have sucked something into the raw water feed that did not hit the filter. In my case I found a very

Stus-List Overheating Yanmar 3GMD

I had an unusual experience yesterday and am looking for any ideas on next steps. I have a Yanmar 3GMD in my ‘81 C 34. I had used the motor for about 20 minutes going out with no problems, but after starting it in heavy winds, it rather quickly quit on me and would not start. I was heeling

Re: Stus-List Overheating YANMAR (Update)

90% of the time, overheating on a yanmar is due to restriction in the exhaust where the water get injected after the manifold. Usually it connects to a rubber bellows/hose that can be easily taken out. Then poke into the exhaust with a large screwdriver and see if you see flakes of carbon Ahmet

Re: Stus-List Overheating YANMAR (Update)

If it was really fouled then he probably would have noticed that it wasn't achieving the same thrust to RPM or speed to rpm ratio. This usually is also accompanied by black smoke indicating too much engine load. I have not heard any reports regarding the condition of the impeller. I have also

Re: Stus-List Overheating YANMAR (Update)

The 3HM35 has a continuous rating of 3200 rpm with a 1-hour rating higher than that, so it is probably worth continuing the hunt for issues (maybe around the exhaust water injection?). A properly functioning engine should not overheat with load from a few barnacles, should it, or was it really

Stus-List Overheating YANMAR (Update)

I borrowed a wet suit and regulator from a fellow club member and drove the boat (first time!). Barnacles on prop and shaft came offsite a chisel followed by a wire brush. Aside from poking a wire coat hanger in the water intake to the mixing elbo, everything else was the same as those way

Re: Stus-List Overheating YANMAR

cnc-list.com> To: cnc-list@cnc-list.com Cc: Marek Dziedzic <dziedzi...@hotmail.com> Sent: Monday, May 30, 2016 6:13 AM Subject: Re: Stus-List Overheating YANMAR I know that the mix should be 50/50, but what happens if it is more antifreeze and less water? I don,t remember reading anythi

Re: Stus-List Overheating YANMAR

PM To: cnc-list@cnc-list.com Cc: rshibe Subject: Re: Stus-List Overheating YANMAR If your engine is fresh water cooled confirm your anti freeze mix is no more than 50:50. Yes it will over heat, been there. Ray Shibe ...Yanmar 3HM Sent from my iPad

Re: Stus-List Overheating YANMAR

Tom, lots of good suggestions so far. I have one other. When was the last time your heat exchanger tubes were rodded out? If you are unfamiliar with this, these are the tubes you see inside when the cap is removed. There should be a cap on at least 1 end to access the raw water side

Re: Stus-List Overheating YANMAR

If your engine is fresh water cooled confirm your anti freeze mix is no more than 50:50. Yes it will over heat, been there. Ray Shibe ...Yanmar 3HM Sent from my iPad > On May 29, 2016, at 12:59, Rick Rohwer via CnC-List > wrote: > > Hi Tom > > Sorry to hear

Re: Stus-List Overheating YANMAR

Hi Tom Sorry to hear about your issue! I was going to suggest a look at the through hull as we had sucked a sardine into ours in desolation sound a while back, but in that case the flow of water was drastically changed. Backing down on the engine to idle allowed for a return to port. I have

Re: Stus-List Overheating YANMAR

Hi Tom, You didn’t say anything about reduced water flow. That would be the first indicator for over heating, and I’d check your impeller first and then ALL the hoses for scale. I’ve seen a lot of stuff stuck to the walls of the hose between the strainer and the water pump. The entrance to

Stus-List Overheating YANMAR

We are on our first extended cruise of the year for a club event in Olympia WA and are hiving a problem with overheating with our 3HM35 Yanmar. Here's the deal... We usually run as about 26-2800 RPM. Depending on the condition of the bottom and the prop, that gives us between 6.5-7.3 KTS.