: Insert feeler gauge
4180 893 6400 (1) between
rocker arm and valve stem.
The feeler gauge must slip through
with a certain resistance.
Inlet valve (2) = 0.10 ± 0.02 mm
452RA082 VA
2
1 3
Exhaust valve (3) = 0.10 ± 0.02 mm
Adjusting valves
Valve clearance is adjusted with the
locknuts (arrows).
To increase valve clearance:
Loosen the nut.
452RA083 VA
To reduce valve clearance:
Tighten the nut.
– Turn engine over several times,
check valve clearance again and
adjust if necessary.
Assemble all parts in the reverse
sequence.
– Thoroughly clean the sealing
faces on the cylinder and cover.
Fit a new gasket