While waiting for my arbor for my spring seat cutter I decided to putz on other stuff. I cleaned up the timing cover and removed the high volume pump gears and went back to the stock set up. I thought about the high volume, I figured the stock set up keeps the passages full so the “high volume” isn’t needed, I figure the pressure is more important. Mocked up my SRE pan, didn’t k ow if the factory windage tray would work but it seems it does, it might be redundant but what ever. Going to snake my camera in the oil drain hole to check pick up to bottom of the pan distance. Bolted the timing cover on with gasket to crush the gasket so I can accurately set cam end play, I’ll set end play tomorrow. Having a couple beers with the dogs too!
There is only so much need for oil volume for any motor, unless you have added more oil feed holes or really increased your bearing clearances. pressure is far more important especially on motors that have cranks that are not cross drilled and do not run fully grooved mains to feed the rods constantly. running a good two Qt oil filter has been shown to add more volume then some replacement high volume pumps.
Yeah after thinking “high volume” the stock pump has no issues keeping the passages full, I figured “that’s the volume part of it” The pressure part, that’s easily attained by the stock pump also. The pump cavity and thrust plate looked great, no wear or signs of stress, so I thought “I’m going back to stock while I’m ahead”
Hey Mark, When you go to set your "cam end play" can you go into detail what you do, and maybe some pictures please. I have only rebuilt 2 Buick engines in my life, didn't know anything about cam end play, and I guess I got lucky. Both engines are doing great after 20, and 30 years of service. Thanks, John
