560SEC (126.045) V8-5.6L (117.968) (1989)
Valve Cover: Service and Repair
Removing and Installing Cylinder Head Covers:
NOTE: When performing repairs, install only modified cylinder head cover gaskets.
Parts
Designation
Part No.
Left cylinder head cover gasket
116 016 13 21
Right cylinder head cover gasket
116 016 14 21
These gaskets made of modified material have been installed since May 1991.
Production Breakpoint
Removal and Installation:
The cylinder head has to be reworked as specified below before installing these gaskets in order to avoid subsequent leaks:
1
Remove and install injection valves.
2
Remove insulating sleeves. Replace seal when installing.
3
Seal bores (e.g.. with paper) and cover over timing parts in cylinder head as well as air flow sensor.
4
Chamfer the edges (e.g.. with hand grinder) at the bores (A) for the injection valves.
5
Dress contact surface (arrows) with emery cloth/emery paper (roughness 100-160) or oil stone in order to remove remaining burrs particularly in
area of bores (A).