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Page Title:
FIGURE 499. INSTALLING FUEL INJECTION PUMP DRIVEN GEAR AND RETAINING PLATE. |
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 alined with its pointer. Retain this
(5) Figure 499. (A) Position fuel injection
pump drive gear on fuel injection pump
position. (B) With timing marks alined,
driven gear hub alining elongated bolt
tighten the three cap screws securing
holes in gear with threaded screw holes
the driven gear and plate to the hub.
in hub. The elongated bolt holes allow
After tightening the three cap screws,
for adjustment of the gear for precise
check driven gear and camshaft gear
backlash. Backlash should be within
fuel injection pump timing in relation
to engine timing. (B) Position fuel in-
0.0020 to 0.0060-inch.
jection pump driven gear retaining plate
against driven gear and aline bolt holes.
Note. The three slots in the driven gear
all approximately 20 degrees of free
(C) Install three 3/8-inch lock washers
rotation on the injection pump drive shaft
and 3/8 x 1- 1/4 cap screws to hold re-
taining plate until injection pump timing
and gear hub. In extreme cases, remove
the driven gear and plate and reposition
has been completed.
the gear on the hub to gain satisfactory
alinement.
Note. Tighten cap screws after the
fuel injection pump timing marks are
alined.
PUMP DRIVEN GEAR AND
RETAINING PLATE.
Caution: Do not allow the engine vibra-
tion damper, or plunger drive gear in
timing window in pump head to move off
timing marks while setting the advance
unit timing marks.
(6) Figure 500. (A) Using a suitable socket
wrench on the hex nut securing the driven
gear hub to the fuel injection pump shaft,
turn the wrench slightly, in either di-
rection, until the automatic advance unit
timing mark on fuel injection pump is
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