Porsche 928 Workshop Manual page 194

65
Engine/Cylinder Head, Valves
928
CHECKING AND ADJUSTING DRIVE BELT
Checking
1. Remove air guide hoses.
2. Unscrew two hexagon head metal screws and
remove air guide upper section from above.
3. Unscrew drive belt guard upper section on both
sides and remove.
4. Turn engine in direction of rotation to TDC
(cylinder 1). In this position marks on camshaft
sprockets should conform with marks on flange
bearings.
5. Turn engine two more turns until TDC mark is
reached again and check drive belt for damage
and wear at same time.
15-18b Checking and Adjusting Drive Belt
Printed in Germany