Engine - Low or No Oil Pressure On Cold Start
84porsche02Subject
Oil Pump
Part Identifier 1720
Applies To 944
1983-84
Group
17
Key Points
Modification to correct slow buildup of oil pressure
C
Number
84-02
April 16, 1984
If low or no oil pressure is observed upon cold starting after the vehicle has been sitting (parked overnight, etc.), it is possible that air is being drawn into the lubrication system.
Air enters the system between the suction and pressure sections of the oil pump (white arrows).
To correct, perform the following procedure:
- remove oil pump
- remove rear cover of oil pump
- clean and dry pump thoroughly
- apply Loctite (R) 574 to outside diameter of rear cover (black arrow)
- reassemble pump
- apply Loctite (R) 574 to sealing surface of pump and reinstall pump to engine