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Oil leak overhauled C-85-12F

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JimC

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A friend just did his first startup on a freshly overhauled C-85-12F. The top through stud at the front of the front main bearing is leaking like a sieve. Not a jet, but you can see the oil seeping down the outside of the crankcase when the engine is running.

Any thoughts about likely causes and fixes?

JimC
 

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