Porsche Willhoit Anti Drain Back Valve And Line Kit - 911 65-71 SMC-005-022 955-572-319-01 Driver's manual for 1977 911

Driver's manual for 1977 911 models as was supplied when the car was new

for 944 (1986-1989) models

20 (65-73) or #911

Porsche With this service

Porsche Front wiper arm cover

Porsche Willhoit Anti Drain Back Valve And Line Kit - 911 65-71 SMC-005-022 955-572-319-01 Driver's manual for 1977 911Porsche Willhoit anti drain back valve and line kit for 911 (1965 1971) models. Four cam cars, and all 911's up to 1989, have a dry sump oiling system. The oil for the engine is stored in a tank in the fender well and not in the crankcase as in a wet sump engine (like the 356). A dry sump system has several advantages: Since no oil is stored in the crankcase, the engine case can be made smaller and the engine can be mounted lower in the car, lowering