HH56 Quote:
The Olds pump has a higher capacity and seems to have solved the problem no matter what the original cause but you do give up the aux vacuum pump for the wiper motor. That is easily accommodated by reverting to the dual action fuel pump used in earlier years.
As one of the co-inventors of the Olds oil pump adapter kit (now sold by Jack Vines), in my (not so humble) opinion, the Olds pump completely solves any issues with Packard pumps, reworked or not, new or not. It there are clacking lifters and/or or low oil pressure at idle, then you need an Olds pump and adapter kit PERIOD.
Of course, if you don't currently have an oil pressure problem on your 55 or 56 (both are susceptible), then don't fix what ain't broke.
Also, one can substitute an electric wiper motor as well or use the alternate vacuum source fuel pump with the original motor as described in the quote above.
Craig
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