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Generator Hydro Lock Help

Anything related to the operation of your boat. Steering, Bilge Pumps, thru-hulls, bottom paint, etc.
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Topic author Canada
Midnightsun
CYO Supporter
CYO Supporter
Posts: 2982
Joined: March 27th, 2016, 2:27 pm
Vessel Info: The Midnight Sun
2007 41CMY
Volvo D6-370's
Location: Montreal, Canada
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Re: Generator Hydro Lock Help

Postby Midnightsun » April 25th, 2021, 1:14 pm

Was going to try a check valve and double check the vented loop for proper operation. Thanks for all the ideas.
Cheers, Hans
2007 Carver 41 CMY
Twin Volvo D6-370's
Montreal, Canada
Midnight Sun I Photos
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Italy
KeithS
Scurvy Dog
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Posts: 35
Joined: May 29th, 2020, 2:34 pm
Vessel Info: 2005 38SS
Location: Oceanport NJ
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Re: Generator Hydro Lock Help

Postby KeithS » April 25th, 2021, 6:59 pm

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.
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User avatar

Topic author Canada
Midnightsun
CYO Supporter
CYO Supporter
Posts: 2982
Joined: March 27th, 2016, 2:27 pm
Vessel Info: The Midnight Sun
2007 41CMY
Volvo D6-370's
Location: Montreal, Canada
Has thanked: 272 times
Been thanked: 1180 times

Re: Generator Hydro Lock Help

Postby Midnightsun » April 25th, 2021, 7:06 pm

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
Cheers, Hans
2007 Carver 41 CMY
Twin Volvo D6-370's
Montreal, Canada
Midnight Sun I Photos
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