Porsche 928 Workshop Manual page 142

13
Engine. Crankshaft, Pistons
928
CHECKING AND CORRECTING BELT TIGHTNESS
The tightness of all belts is checked by applying
thumb pressure to belt at point midway between
two pulleys.
Belts must give by approx. 10 mm.
1 - Crankshaft
2 - Fan
3 - Auxiliary air pump
4 - Air conditioner compressor
5 - Power steering pump
6 - Alternator
13 - 18
Checking and Correcting Belt Tightness Printed in Germany