Removing and Installing Valve Tappets - Engine Removed
WM 155920 Removing and installing valve tappets - Engine removedTools
Move camshafts and crankshaft to basic position
1. Turn crankshaft clockwise until the bore 1 OT (top dead center) in the belt pulley is aligned with the fixing bore on the crankcase. Position or fix with fixing pin (short) of special tool 9595.
Information
^ The basic camshaft setting can be checked only after removal of the camshaft closure caps.
Drawing shows closure cap of cylinder bank 4 - 6 (pulley side)
2. Remove camshaft closure caps above the cylinder head oil extraction pumps. The closure cap of cylinder bank 1 - 3 is located on the flywheel side and the closure cap of cylinder bank 4 - 6 is located on the pulley side. Drive awl into center of the closure cap and lever off the cap.
3. Check basic camshaft adjustment.
Basic camshaft adjustment of cylinder bank 1 - 3
For adjustment, the groove in the camshaft must face outward toward the cylinder head cover.
View from the flywheel side
If the position of the camshafts is incorrect, remove fixing pin at the pulley and rotate the crankshaft 360 degrees clockwise.
Basic camshaft adjustment of cylinder bank 4 -6
View from the belt pulley side
For adjustment, the groove in the camshaft must face inward toward the crankcase.
If the position of the camshafts is incorrect, remove fixing pin at the pulley and rotate the crankshaft 360 degrees clockwise.