Sounds to me like the seals inside the cylinder are bad allowing oil to get on the top of the piston. Your pictures are so small it's tough to see what you have.


1941 Chevy
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1941 GMC resting peacefully
1946/1947 Chevy Street rod on s10 frame complete
1945 GMC panel truck in line for restoration
1941 Plymouth stock complete
1941 GMC COE in restoration process
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1941 Chevy Coe uncertain future resting now