Porsche 928 Workshop Manual page 215

a
928
Engine, Cylinder Head, Valves
15
16. Undo center toothed beft cover, remove
left-hand upper section and center toothed
belt cover.
17. Slacken toothed belt by turning toothed.
belt tensioner.
18. Unbolt and remove tensioning roller
bracket.
19. Remove toothed-belt from right-hand side
over cylinder 1 - 4 camshaft sprocket,
water-pump sprocket, cylinder 5 - 8 cam-
shaft sprocket, oil-pump sprocket and
crankshaft sprocket.
lnstalllng
1. Installation of toothed belt is the reverse of
the above sequence.
2. Turn camshafts to mark and hold firmly in
this position,
3. Then turn engine in direction of rotation to
ignition TDC (cyl. no. 1).
Note
Damage may be caused to the valves ff the
camschafts move suddenly.
4 Once the toothed belt is in position, adjust
the settings. See page 15 - 101 to 15 - 104.
Special note on toothed belt and drive belt
As a rule, make sure the toothed belt and
drive beft are not kinked during assembly,
packing and storage. Improper handling may
cause preliminary damage to the camshaft
toothed belt that may be the cause for inci-
pient damage.
Replacing toothed belt
Printed in Germany - XXXI, 1993
15 - 107