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  #21  
Old 08-30-2023, 08:11 PM
FMile Pontiacs's Avatar
FMile Pontiacs FMile Pontiacs is offline
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Crankshaft is at the Machine Shop now. From my own measurements the rod journals were out of round and/or tapered.

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  #22  
Old 08-30-2023, 09:29 PM
hurryinhoosier62 hurryinhoosier62 is offline
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Originally Posted by FMile Pontiacs View Post
Crankshaft is at the Machine Shop now. From my own measurements the rod journals were out of round and/or tapered.
That is what I suspected. Maximum taper allowance on the rod journals of a “V” type crank is .0002; maximum O/R is .0005. I’ve seen “overseas” ( PRC) cranks that had as much as .001 taper and .001-.0015 O/R. Being “on stroke” was a joke; I had one that had one rod journal that was .040 out of stroke.

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