Re: oil pressure at the lifters at idle

Posted by Tim Cole On 2023/1/31 11:06:43

The general rule is 3-7 psi for the light which translates to 5 psi for 500 rpm given required 10 psi oil pressure per 1000 rpm. Packard always specified rather low idle speeds so a flickering light is not always indicative of a problem. Somewhere in the literature is a note about that.

The note about the loose oil pick up tube is worthy of note. I have run into that problem and don't have a high opinion of that set up. The earlier cars with the fixed pick up and bolted tubes did not have oil pressure problems like those later engines.