Yanmar 3TNV82A Service Manual page 238

FUEL SYSTEM
Note: Some model engines may require the
intake manifold and fuel injection pump
insulator (Figure 7-16, (2)) be removed
to access the inner fuel injection pump
(Figure 7-16, (1)) retaining nuts.
(2)
(1)
Figure 7-16
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 7-16, (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 7-17, (1)).
7-20
Do not rotate the crankshaft with the
injection pump removed.
0000263A
25. If the fuel injection pump requires servicing, it
must be sent to an authorized Yanmar FIE
repair facility for repair and calibration, or
replaced with a new fuel injection pump.
Fuel Injection Pump
(1)
Figure 7-17
CAUTION
TNV DI Service Manual
0002047
0000083en