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Looking for reason my piston melted

Posted: Sun Apr 14, 2019 4:48 pm

by Jake2015

<t>The pictures tell the story. This was number three cylinder. The other cylinder have good compression</t>

: 712K #3 Piston1-small copy.png (1.86 MiB) Viewed 3686 times

: 712K #3 Piston2-small copy.png (1.4 MiB) Viewed 3686 times

: 712K #3 cylinder-small copy.png (1.39 MiB) Viewed 3686 times

Re: Looking for reason my piston melted

Posted: Mon Apr 15, 2019 3:00 am

by VinceAtReal4x4s

Whoa. What are the valves like? Could it be it was running too lean somehow?

Re: Looking for reason my piston melted

Posted: Mon Apr 15, 2019 6:37 am

by undysworld

Air leak in the intake manifold, or bad gasket on #3?

Re: Looking for reason my piston melted

Posted: Mon Apr 15, 2019 9:09 am

by pinzinator

It looks like a lack of oil, but I have no idea how that could happen.