Re: Engine Rebuild

Posted by Owen_Dyneto On 2010/5/28 11:52:37

You didn't say if the knock was at cold idle or hot idle; if the latter and the idle oil pressure is on the low side, I'd suspect excessive clearance on a rod bearing. Easy enough to confirm by dropping the pan and using Plastigage to check clearances. If it's only one rod and the crank throw is not out-of-round, excessively worn, and still nice and smooth, new bearing shells or a 0.001" undersize rod bearing can often save the day.

I hope it's one of the other simplier candidates mentioned above which surely should be evaluated first.