Generator Hydro Lock Help

[Midnightsun]

Was going to try a check valve and double check the vented loop for proper operation. Thanks for all the ideas.

[KeithS]

The most common cause for hydro-lock is from extended cranking without starting. Close the seacock if it doesn't start right away. Installation errors are number 2. The best exhaust installation explanation I have seen is Northern Lights "don't drown me". Google it to see. It has a lot of general information that applies to all brands. Kohler of course makes an installation manual with actual measurements and angles.

[Midnightsun]

Never really had any hard start problems with her. Usually a couple of rotations and she fires right up. The new owner told me it almost always happens when anchored out in rough conditions. Today he ordered this check valve. https://www.defender.com/product.jsp?id=1656822