Mitsubishi S6R Series User Manual

8-26
Chapter 8 FUEL SYSTEM
(Shim adjust type)
(1) Install the fuel injection nozzle to the nozzle tester.
(2) Push down the handle at a speed of one stroke a second
and measure the pressure when injection starts. If the
pressure is out of the standard, adjust it to the standard.
(3) Adjust the injection start pressure by increasing or
decreasing the number of shims. Shims are available in
9 types from 0.40 to 1.2 mm [0.0157 to 0.0472 in.]
Refer to the table below for adjustment.
(4) After the adjustment, tighten the retaining nut to the
specified torque of 186.5±9.5 N·m {19±1 kgf·m}
[137.55±7.01 lbf·ft].
(5) After tightening the retaining nut to the specified
torque, inspect again the injection start pressure to see
that it is as specified.
Valve Opening Pressure of Fuel Injection Nozzle -
Adjust
Item Nominal value Standard value
Fuel
injection
starting
pressure
37560-32000
34.32 MPa
{350 kgf/cm
2
}
[4978 psi]
33.83 to 35.79 MPa
{345 to 365 kgf/cm
2
}
[5192 psi]
(the value when
it is new)
Shim
part number
Shim
thickness
Valve opening pressure
48742-00311
0.40 mm
[0.0157 in.]
-6.66 MPa
-68.0 kgf/cm
2
[-967 psi]
48742-00321
0.50 mm
[0.0197 in.]
-5.33 MPa
-54.4 kgf/cm
2
[-774 psi]
48742-00331
0.60 mm
[0.0236 in.]
-4.00 MPa
-40.8 kgf/cm
2
[-580 psi]
48742-00341
0.70 mm
[0.276 in.]
-2.67 MPa
-27.2 kgf/cm
2
[-387 psi]
48742-00351
0.80 mm
[0.0315 in.]
-1.33 MPa
-13.6 kgf/cm
2
[-193 psi]
48742-00361
0.90 mm
[0.0354 in.]
0.0
(Standard)
0.0 (Standard)
48742-00371
1.00 mm
[0.0394 in.]
1.33 MPa
13.6 kgf/cm
2
[193 psi]
48742-00381
1.10 mm
[0.0433 in.]
2.67 MPa
27.2 kgf/cm
2
[387 psi]
48742-00391
1.20 mm
[.0472]
4.00 MPa
40.8 kgf/cm
2
[580 psi]
Pressure adjustment
by shim combinations

Mitsubishi S6R Series Specifications

General

Brand	Mitsubishi
Model	S6R Series
Category	Engine
Language	English