I have a 3.8 231 C.I. buick motor in an 82 pontiac bonneville at mid rpms there is a

C

chrisdmcmillan

New member
rattle could this be bad? oil pump? thats my guess as there is no oil pressure gauge. the knock isn't constant just at certain rpms then it rattles to a stop. Is it too late for this engine? spun berring? or should I just replace that pump and try er'?
Any advice greatly apperciated! (besides junking or selling the car)
 
The Harmonic Balancer it could be or if its superchared it could be the supercharger its self
 
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