Re: One oil pump modification now on file

Posted by Craig Hendrickson On 2014/7/1 9:07:10
Ross Quote:
As discussed long ago here, this influx of air is what causes lifter collapse and bearing failure.


I beg to differ. Like many things Packard V-8, there are multiple causes of lifter collapse and bearing failure, not just influx of air. Also, there is poor pressure relief valve design which causes it to eventually stick "open" resulting in zero oil pressure. Then there is the fact that in a 60YO engine ALL the clearances open up after a while including that between the pump body and the gears making an already marginal oil pump into an inadequate one.

With all due respect, I think you are just "putting lipstick on a pig," particularly when there is an excellent solution available involving new, proven parts (Olds pump & conversion).

Craig

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