Re: How much demand is there for PV8C oil pump adapter kits?
Posted by Jack Vines On 2008/11/6 11:51:55
Quote:
Simple. Plug the PR port ala late 56 pump and drill 2wo holes in the side of the pressure relief piston.
IIRC there are significant changes in the internal passage.
Quote:
Actually, as a prelude to developing the second design pump, Packard did a clandestine field test that involved plugging the port and modifiying the relief valve on the original style oil pump - similar to what Keith has outlined. In the end, they chose to go with the sump tube as a field fix - though the full reasons are unknown to me. Though service parts were available for the second design, that pump was intended production installion only.
The late Steve Williams and I spent an afternoon comparing and measuring the two pumps side-by-side and concluded there was no practical way to make a first generation pump into a second generation pump. It would be wonderful to be proven wrong, but the two modifications described above wouldn't seem to work without the change in the casting. This is why there was a new casting and a part number assigned and not just the simple field fix the two changes mentioned would have been.
thnx, jack vines
This Post was from: https://packardinfo.com/xoops/html/modules/newbb/viewtopic.php?post_id=15915