Camshaft
– Remove Seeger ring 1 and water pump impeller 2.
– Pull out roller 3 from the shaft hole and remove lining holder 4
from the camshaft.
– Remove ball bearing 5 from the camshaft with a suitable pul-
ler (see figure).
NEVER CLAMP THE CAMSHAFT IN A VICE.
– Release spring 6 from decompressor shaft 7 while extracting
the latter from the camshaft.
– Unscrew the two screws 8 and remove camshaft gear 9.
– Using the puller, remove ball bearing 10 from the camshaft.
Clean and check all components and if necessary replace them.
Camshaft
Check the support points and the cams for signs of wear.
Replace ball bearings 5 and 10.
Decompressor shaft 7
Check the play of the shaft in the support and the wear of its
contact surface with the rocker arm.
Camshaft gear 9
Check the wear of the teeth.
Ensure that screw 11 is firmly seated.