Time for a little tear down, lets see if we can find the problem inside this motor?
That a Oldsmobile connecting rod 12 point nut ! Not a good thing to find in there ! Id be cheching the other 15 and find the missing one fast , b4 you start it and it kicks a leg out of bed !
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That a Oldsmobile connecting rod 12 point nut ! Not a good thing to find in there ! Id be cheching the other 15 and find the missing one fast , b4 you start it and it kicks a leg out of bed !