Valve Clearance: Adjustments

ADJUSTING VALVE CLEARANCE
- Remove cylinder head cover.
- Crank engine with Special Tool 11 3 020.






- Measure valve clearance of cams facing up.
- Compare measured valve clearance with the specified valve clearance.
Nominal values:
0.26 to 0.35 mm (0.010 to 0.014") - cold.
0.31 to 0.40 mm (0.012 to 0.016") - warm.






- If the valve clearance is not within specified tolerances, turn openings of tappets as shown.






- Guide in Special Tool 11 3 170 according to camshaft "A" (exhaust) or "E" (intake) and press tappets down.






- Blow out valve shim with compressed air.






- Measure thickness of removed valve shim.
- Install shim of required thickness with the lettering facing down.