Adjustment - Mitsubishi S3L Service Manual

MAINTENANCE
Figure 262 Adjusting fuel injection timing
TDC mark
Angle by which
fuel injection
timing is
advanced
Increase
shim
thickness.
Retarded
Figure 263 Adjusting fuel injection timing
Service Manual Mitsubishi SL-Series diesel engines
Version 08/2004
Shims
Angle by which
fuel injection
timing is retarded
Mark on
timing gear
case
Decrease
shim
thickness.
Advanced

49.3 Adjustment

1. If the fuel injection timing is incorrect, change the
thickness of shims under the fuel injection pump.
An increase or decrease of the shims by 0.1 mm
(0.004 in.) will vary the timing by 1°.
2. Increase the thickness of the shims to retard the
timing or decrease it to advance the timing.
Valve clearance (both
inlet and exhaust valves)
Four kinds of shims are available in thicknesses
0.2 mm (0.007 9 in.), 0.3 mm (0.011 8 in.), 0.4 mm
(0.015 7 in.) and 0.8 mm (0.031 5 in.). These
shims have no identification; measure the thick-
ness of each shim with a calipers before using it.
CAUTION
Apply sealant to both faces of each shim to prevent
oil leaks.
3. After the timing has been adjusted, make sure it is
correct.
4. Close the fuel filter valve and restore the delivery
valve and injection pipe to the original state.
ENGLISH
FUEL INJECTION TIMING
0.25 (0.0098)
179 / 195