Re: Brian's 1956 Packard Clipper

Posted by Ross On 2019/5/27 6:29:46

The Packard pump is very prone to drawing in air along the input shaft. This aerated oil will make the lifters clatter, and as it is a poor lubricant will cause premature deterioration of the main bearings. The very best cure is to rebush the shaft or go to the Olds pump. The work around cure which all of the old guys resorted to when these were just used cars was to run the oil a quart over full. This keeps the end of the oil pump shaft submerged but is not so high that the crank whips the oil.