Carver Owners Forum

I had the chance to run our genny while in the islands and it was flawless. Met another boater who had the same genny and you could hardly hear it. He installed a Vetus muffler in-line with the water/exhaust hose, noise level was near 0. Anyone here have any experience with type of product? And I investigated my system and yet there is an exhaust muffler on it. So I’m guessing, that, he put one in front of the original muffler.

Not familiar with what you mention however I do know the best way to make a genset quiet is by separating the water from the exhaust. My previous boat I installed a gensep unit, this basically allows a hissing noise above the water line and the burble burble noise is non existent. Not sure what is in our present Carver but must be similar to a gensep as there is no water coming out of the exhaust and very quiet.

https://www.fisheriessupply.com/centek- ... -separator

Looks like Vetus has it's on take on the same solution and maybe what you refer to.

https://webshop.vetus.com/en/products/e ... separators

My 2004 Kohler 7.3e is also super quiet with the hatches closed. Has a water lift muffler that exits out under the boat. The good is that it’s super quiet. The bad is, from the few times I’ve run it, I can’t tell if it’s pumping water or not so if the impeller or pump ever fail, I won’t know till it overheats and shits off. Anyone have experience or suggestions with these?

Carverlvr2 wrote:Source of the post My 2004 Kohler 7.3e is also super quiet with the hatches closed. Has a water lift muffler that exits out under the boat. The good is that it’s super quiet. The bad is, from the few times I’ve run it, I can’t tell if it’s pumping water or not so if the impeller or pump ever fail, I won’t know till it overheats and shits off. Anyone have experience or suggestions with these?

I have not done this, but it would seem you could locate a pressure gauge or sensor on the output of the raw water pump and get an idea of what appropriate numbers would be when it's running correct with a new impeller, and be able to tell when it's insufficient.

Always check the impeller each year.
One thing for sure, if its not pumping it will shut down automatically is about 2 minutes.
I think it short sighted of Kohler that they don't have a temperature guage.
Kohler no long makes marine , gas generators.
At least I know its working (cooling) when I winterize it because it takes in the the 3 gallons of non-toxic anti-freeze that I flush it.