9
ASSEMBLY INFORMATION
EN 120
9.6 Timing system gear assembly and injection pump
9.6.1 Timing system gear assembly
1.
Check that the key A is correctly fitted on th
e
cam
shaft B.
2.
Position the gear C on the camshaft B adhering to
the key reference A.
3.
Screw capscrew D until the end.
4.
Tighten the middle gear pin H, in the housing J of
the crankcase, with the screws K (tightening torque
25 Nm).
Fig 9.30
•
The fitting of the middle gear pin H has only one
position, the 4 screw holes K are asymmetric.
•
Always replace the gasket L at each assembly.
5.
Insert the shoulder ring M.
6.
Check the integrity of the bushing N into the middle
gear P, and ensure that it is free from impurities.
7.
Thoroughly lubricate the pin H and the bushing N.
8.
Position the gear P on the pin H observing all the
marks W of the gears C and S (Fig. 9.33).
Fig 9.31
Important
•
Failure to comply with the marks W on the gears C
,
P
and S, causes engine malfunction and serious
damage.
9.
Insert the shoulder ring Q and the lock ring R.
10.
Tighten the screw D (Fig. 9.30 - tightening torque a
t
100 Nm).
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