SL 600 (129.076) V12-6.0L (120.983) (1997)
Timing chain:
Position on marks on camshaft sprockets (step 12).
Guide rail (4):
Install (step 13).
Flight exhaust camshaft sprocket (3):
Install with timing chain positioned on mark, tighten (16 Nm) (step 14).
Profile gasket:
Install together with cover (13) without sealant (step 15).
REMOVAL, INSTALLATION
1
Remove intake manifold gaskets.
2
Attach guard plate 120 589 06 31 00 to intake ports.
3
Turn crankshaft to 30° after ignition TDC on cylinder 1 in engine direction of rotation (arrow).
Note
In the position 30° before TDC the camshafts can be turned without the valves coming into contact with the piston crowns.
4
Marking timing chain relative to camshaft sprockets (arrows).
5
Remove chain tensioner.
6
Unscrew right exhaust camshaft sprocket (3), remove.
7
Pull guide rail (4) off of bearing bolt (4a).