Re: Engine knock- cant find cause

Posted by trucker 40 on January 14, 2011 at 11:16:49 from (69.152.168.241):

In Reply to: Engine knock- cant find cause posted by JoeBob-IN on January 13, 2011 at 20:20:26:

So putting in the bearings helped?It sounds like the oil pressure is better now?
If you didnt seem to say its not as loud,I would say it might be something else,like flywheel bolts or an injector or wrist pin.
You might try cracking the injector lines and see which cylinder its coming from,or if it even helps it.If you find it gets better when you crack an injector line,I would look that cylinder over good,probably pull that piston out or try and see if the wrist pin is loose without pulling the piston until I knew if that was the problem.Maybe plastiguage that rod, if that is alright, check the crank for being round on that throw.Look at the cylinder wall and see if there is a groove in it.I worked on a Cat one time that was like that and a keeper came off of the wrist pin and ruined that side of a cylinder.
Does it smoke bad?

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