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Has anyone ever seen cracked pistons before? I have at least two on right bank. I cannot seem to find similar issues in forums. When I shake the car the cracks wobble
Images are through spark plug holes.
something doesnt make sense , are you down a spark plug hole ?? how could it wobble like that in the bore even if it was cracked ??? the video does not even look like a piston , that is so weird.
Problem resolved, after removing all plugs I found oil in 4 cylinders giving effect of cracked piston, image was shimmering under light of endoscope. Now I have to resolve why oil is pooling on top of pistons. All ive done is change oil, as there was only 1qtrt in it when I rescued the car from a garage after standing for many years. Why would it pool there?
it is very common to pool on a flat 6. some guys after storage even go as far as take the plug out and crank the engine a few times in order not to hydrolock the engine..
the tank just gradually drains down , fills up the crankcase and leaks past the rings. not surprised at all if it has been in long term storage.
there is a check valve available to prevent this but i dont know the details.