Head Cover - Additional Sealing Requirements
86porsche03Subject:
Head Cover Sealing 87 Models
Model 944S
928S4
Group
1
Part Identifier
1570
Number
8622
October 31, 1986
944S and 928S4
When installing the cylinder head cover, additional sealing is required. Apply a small bead of silicon Silastic 730 RTV Sealer Part Number 000 043 019 00 in the area where the end camshaft bearing caps meet the head cover mating surface. (Arrows A)
Note: Avoid using excessive amounts of sealer. Torque head cover bolts to 10 N-m (7 ft.lbs.).
928S4 Only:
To improve sealing of the cylinder head cover, clamping pressure of the cover to the cylinder head is increased by using spacers Part Number N 013 811 2, between the guide washers and the mounting bolt heads. The spacers must only be added to the four (4) mounting bolts along the bottom (exhaust side) of the cover and the two mounting bolts, one centered at each end of the cover (Arrows B). Twelve spacers are required for repairing one engine.