3
4
TIMING GEARS AND GEAR CASE
4. Hold idler gear as shown and check gear backlash
between injector pump timing gear and idler gear
using dial indicator, Fig. 9.
Injector pump timing gear backlash must not exceed
0.2 mm (.008”).
NOTE: Idler gear must not turn while checking.
If gears are worn it is recommended that they be
replaced as a set.
Fig. 9 – Checking Injector Pump
Timing Gear Backlash
REMOVE GEAR CASE
1. Remove injector pump timing gear with a three jaw
puller, Fig. 10.
a. Remove 2 nuts and injector pump. Discard
O-ring.
Fig. 10 – Removing Injector Pump
O-RING
2. Remove parts in sequence shown, Fig. 11.
a. Remove 3 screws and camshaft retainer.
b. Remove remaining 5 screws.
Fig. 11 – Removing Timing Gear Case
A
B
B
3. Remove timing gear case and discard gasket,
Fig. 12.
a. Remove oil pump rotor from cylinder block.
Fig. 12 – Remove Timing Gear Case
ROTOR
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