Yanmar EF-494T - Page 108

3 ENGINE 3 ENGINE
EF494T TM 06/2011 edition
100
(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 10, (1)).
Figure 10
Note:
Some model engines may require the intake
manifold and fuel injection pump insulator (Figure
11, (2)) be removed to access the inner fuel
injection pump (Figure 11, (1)) retaining nuts.
(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 (TNV 88 model
engine) are fastened to the gear case with three
(3) studs and nuts.
Figure 11
(24) Remove the fuel injection pump (Figure 11
(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 12 (1)).
CAUTION
Do not rotate the crankshaft with the injection
pump removed.
(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.
Figure 12