Re: Can't find source of engine tapping sound

Posted by itdmachinist On 2018/5/9 16:39:02

It is the wrist pin bushing. Felt it pivot.

Also found a spot under cyl 6 that appears to be grey sludge from bearing material. I am very lucky that there is no damage to the crank. I gotta check the rear main still as If junk came in with the oil it had to hit there first.

Guess I will pull the head and replace the wrist pin bushing and the rod bearing.

Disappointing as this motor has low miles. But I guess these things happen. Luckily the rest of the rods feel fine.