FUEL SYSTEM
TNV DI Service Manual
7-23
Fuel Injection Pump
Note: On TNV82 - 88 models the injection
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.
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 7-18, (1))
and lock washer (Figure 7-18, (2)).
Figure 7-18
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 7-19, (1)).
Figure 7-19
Note: Some model engines may require the
intake manifold and fuel injection pump
insulator (Figure 7-20, (2)) be removed
to access the inner fuel injection pump
(Figure 7-20, (1)) retaining nuts.
Figure 7-20
23. If required, remove the intake manifold and fuel
pump insulator to access the fuel injection
pump mounting nuts.
Note: The MP2 fuel injection pumps
(TNV82 - 88 model engines) are
fastened to the gear case with three (3)
studs and nuts. The MP4 fuel injection
pumps (TNV94 - 106 model engines) are
fastened to the gear case with four (4)
studs and nuts.
24. Remove the fuel injection pump
(Figure 7-20, (1)). For purposes of future
injection timing purposes, record the fuel
injection pump timing index number located on
the boss on the engine side (back) of the of the
fuel injection pump (Figure 7-21, (1)).
(1)
(2)
0000162B
(1)
0000593A
0000593
(1)
(2)
0000263A
TNV_DI_SM_A4.book 23 ページ ２００７年１２月６日 木曜日 午前９時２３分
