Re: Deja Vu (Oil Pumps)

Posted by Jim On 2011/11/19 9:21:41

Just to comment on my limited observation of the '40 pump. Comparison of the gear depth is exactly the same. The only difference I found in the pump casting was not in the casting, but only a larger discharge hole diameter. I say limited observation, because I had no interest in conducting an extensive research study, or pondering why some, but not every, early 356 engine experiences noisy hydraulic tappet operation. I know it happened starting nearly at day one, followed by a string of wacky factory fixes, one after the next, with the final solution being a new version of oil pump that could finally deliver the quantity of oil under pressure necessary to supply the bearings and tappets with enough oil to ensure silent operation under all conditions.

Gosh, I don't have a V-8 Packard (yet) but can't hardly help seeing an incredibly ironic parallel here. But, I will leave the pondering about V-8 pumps to those who like to ponder the issue. When I get a V-8 Packard, I will remove the pan the day it arrives and install the Olds kit and go driving. Driving is more fun than pondering.

With that, I leave the discussion to the ponderers and am off to the garage to work on the Packards. I'll need to do lot's of little work on the side mount fenders Kev brought to the Fun Run to ensure they are installed for next years 2012 Fun Run so there are new story's to tell about what we've done on the cars.