Mitsubishi S4L User Manual

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Service Manual Mitsubishi SL-Series diesel engines
Version 08/2004
ENGLISH
FUEL INJECTION TIMING MAINTENANCE
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3. The fuel injection timing is correct if IT mark on the
crankshaft pulley is aligned with the mark on the
timing gear case when fuel stops from the injection
pipe.
49.2.2 Alternate method
In the fuel flow method, the delivery valve has to be
removed. As a result, there is a good chance for dirt
particles to get inside the fuel injection pump. In this
alternate method, however, it is not necessary to
remove the delivery valve.
1. Disconnect No. 1 fuel injection pipe at the fuel
injection nozzle (cylinder head).
2. Prime the fuel system.
3. Slowly turn the crankshaft clockwise until fuel just
swells at the free end of the injection pipe and, at
that instant, check the position of the IT mark with
respect to the mark on the gear case. This timing
is approximately 1° retarded. Take this 1°
retardation into account when making a shim
adjustment.
Figure 259 Timing mark
Fuel injection timing (BTDC) 17° (standard)
a
a. Please refer to the applicable engine model specifica-
tion sheet for actual data
Figure 260 Disconnecting No. 1 fuel injection pipe
Figure 261 Timing mark

Mitsubishi S4L Specifications

General

Brand	Mitsubishi
Model	S4L
Category	Engine
Language	English