Yanmar 3TNV82A Service Manual page 237

Fuel Injection Pump
Figure 7-12
19. Hold the gear train using a large socket wrench
on the crankshaft pulley nut. Loosen the fuel
injection pump drive gear retaining nut
(Figure 7-12, (1)) and turn it out to the end of
the fuel injection pump shaft.
20. Remove the pump drive gear and hub as an
assembly using an appropriate two-bolt gear
puller (Figure 7-13).
Figure 7-13
TNV DI Service Manual
Note: On TNV82 - 88 models the injection
(3)
21. Once the fuel injection pump drive gear and
hub assembly has "popped" loose from the
tapered fuel injection pump drive shaft, carefully
remove the drive gear nut (Figure 7-14, (1))
(1)
and lock washer (Figure 7-14, (2)).
(2)
0000162A
22. Locate the mark stamped into the upper outside
mounting boss of the fuel injection pump.
Highlight this mark and make a corresponding
mark on the gear case or front plate
(Figure 7-15, (1)).
0000574
pump drive gear will remain "captured" in
the gear case. On TNV94 - 106 models,
the injection pump drive gear can be
removed through the gear case cover
opening.
Figure 7-14
Figure 7-15
FUEL SYSTEM
(1)
(2)
0000162B
(1)
0000593 0000593A
7-19