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PCA Member since 1988
Join Date: Feb 2018
Location: SW Washington State
Posts: 4,575
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There are some specs for the clearances between the gears and the housings, and between the gear teeth. I don't know what those specs are, but a search here may find them. I'll say this, make sure the pumps are within the specs, especially the scavenge side. Otherwise you will end up with the case filling with oil becuase the scavenge doesn't keep up with the pressure side. There's also a mod on early engine cases to allow the oil pressure valve to send excess oil back into the supply side of the system, instead of dumping it in the bottom of the case, where it has to be scavenged again.
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1973.5 911T with RoW 1980 SC CIS stroked to 3.2, 10:1 Mahle Sport p/c's, TBC exhaust ports, M1 cams, SSI's. RSR bushings & adj spring plates, Koni Sports, 21/26mm T-bars, stock swaybars, 16x7 Fuchs w Michelin Pilot Sport A/S 3+, 205/55-16 at all 4 corners.
Cars are for driving. If you want art, get something you can hang on the wall!
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