Water in cylinders, mercruiser 3.0

arrkerr

Petty Officer 2nd Class
Joined
May 7, 2009
Messages
105
Last weekend I was out on the lake and ran across a stupid sand bar hiding in the middle of the lake. I hit some sand, motor bogged a bit, and I killed it and raised the motor. It wouldn't start, and it turned out my brand new starter was cheap and the cone cracked and after further examination may not have been the right part. I was towed back.

I got my old starter repaired this week, and put it in. It cranked a bit and then froze. I immediately pulled the plugs, and water shot out.

I've read that bad exhaust manifolds are the common cause. Is there any chance that the boat is fine, and water came in due to me almost stalling it on sand and the starter cracking?

I've got the manual, but figured I'd ask people with more experience first.

Thanks!
 

JustJason

Vice Admiral
Joined
Aug 27, 2007
Messages
5,321
Re: Water in cylinders, mercruiser 3.0

Sounds more like you hit a sandbar, sucked up a bunch of junk and ran your motor until it overheated. Now you either warped your head, cracked your manifold, or both.
Cracking a starter isn't going to happen from hitting mud.
 

arrkerr

Petty Officer 2nd Class
Joined
May 7, 2009
Messages
105
Re: Water in cylinders, mercruiser 3.0

I never re-started the motor after hitting the sand. I couldn't, the starter was broken.

On closer inspection, however, the starter had a slightly different head. My guess is that either the flywheel wacked it (but there aren't any signs of impact), or that I hydrolocked the motor and the strain of trying to turn the motor caused it to crack along a defect. I've already established that the starter was a cheaply refurbished unit.
 

arrkerr

Petty Officer 2nd Class
Joined
May 7, 2009
Messages
105
Re: Water in cylinders, mercruiser 3.0

Thats the for document, CheapboatKev. That should be a sticky under the adults only section.
 

CheapboatKev

Vice Admiral
Joined
Oct 4, 2008
Messages
5,813
Re: Water in cylinders, mercruiser 3.0

No Problem..Glad I can help as I have been here!
 
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