Hello, new owner of 1953 Willy’s pickup. Been in the family for years and my uncle has let it sit after it was cleaned up. The #3 piston is seized. Looks like it is from coolant getting in and rusting piston. I have used breaker bar to try and turn engine. I have used automatic trans fluid as well as we 40 rust penetration, no luck yet.
I am planning on draining oil and dropping pan to look for any metal.
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