Volvo Penta TAD1630G Workshop Manual page 101

Group 22
5
Crank the flywheel in the direction of rotation until the
correct degree marking immediately behind the needle on
the flywheel housing. See "Workshop manual, Technical
Data
Note: Set the degree marking within the upper half of the tol-
erance area which is stated in the specifications.
The setting must be accurately carried out, and do not crank
the flywheel back against the direction of rotation to finely ad-
just the setting. If the flywheel has been cranked too far, the
setting procedure must be carried out again.
6
Slacken the pump coupling clamping bolt and turn the
pump coupling about 1/4 turn in the pump direction of ro-
Service procedures - fuel system
tation.
7
Remove the plug in the governor housing and fit the
measuring instrument sensor. Ground the measuring in-
strument ground cable to a suitable place on the injection
pump.
8
Tighten down the pump coupling clamping bolt so much
that the coupling, with considerable resistance, can be
turned against the direction of rotation.
Note: The pump coupling should always be turned
against the direction of rotation when setting the injec-
tion angle. This in order to eliminate any play between the
timing gears as much as possible.
If the pump coupling clamping bolt is not tightened down suf-
ficiently when the pump coupling is turned against the direc-
tion of rotation, there will be insufficient preloading and the
setting will not be exact.
Care must be taken not to damage the pump coupling.
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