9
10
11
Checking and adjusting start of fuel delivery
28
Adjusting start of delivery
If the check according to method 1) or 2) should
prove that the delivery start is not correct, proceed
as follows:
Remove timing case cover.
Fig. 9
Loosen all bolts fastening the drive gear to the in-
jection pump hub. For this, two complete turns of
the engine are necessary.
Fig. 10
Turn engine to specified angle for delivery start.
Remove cylinder head cover from cylinder no. 6
(flywheel end). When the values of this cylinder
are in crossover, the piston in cylinder no. 1 is at
ignition TDC.
Remove screw plug from governor housing (see
Fig. 5). The delivery start pointer must be visible in
the centre of the inspection hole.
Fit a socket wrench to the mounting bolts and turn
the injection pump camshaft at the drive flange to
the left or right until the conditions stated under 1)
or 2) (depending on test method) are met.
Fig. 11
Tighten bolts for fastening drive gear to drive
flange consecutively to 5 Nm and then to 30 Nm.
Check delivery start once again.
Install timing case cover.
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