3rd cylinder broken connecting rod?

DavBen

Recruit
Joined
Jun 24, 2007
Messages
1
Hi, I am new to this forum. I have some knowledge of boat motors and motors overall. My boat motor recently blew up, it is a 1986 165 hp 3.7 liter mercury inboard engine. The engine was skipping so I took the head off. I have ordered a new gasket set, etc but now I have found that the 3rd cylinder's connecting rod is apparently broken:eek:. I now realize what the clanging noise was. I was wondering if it would be a waste of time and money trying to repair this or if I should spend my time looking for a new motor. Any advice is greatly appreciated.
 

Robj

Lieutenant
Joined
Mar 22, 2007
Messages
1,441
Re: 3rd cylinder broken connecting rod?

I would start taking it apart to see how much damage it has done. If block and crank are not ruined, cylinders not badly scored, I would still go through the entire engine, put in new rings, bearings and clean out any filings that may have been created as part of the conn rod failure.

Good luck

Rob.
 
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