Mitsubishi S6R Series Service Manual page 185

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.
Item Nominal value
Fuel
injection
37560-32000 {350 kgf/cm
starting
pressure
Shim Shim
part number thickness
0.40 mm
48742-00311
[0.0157 in.]
0.50 mm
48742-00321
[0.0197 in.]
0.60 mm
48742-00331
[0.0236 in.]
0.70 mm
48742-00341
[0.276 in.]
0.80 mm
48742-00351
[0.0315 in.]
0.90 mm
48742-00361
[0.0354 in.]
1.00 mm
48742-00371
[0.0394 in.]
1.10 mm
48742-00381
[0.0433 in.]
1.20 mm
48742-00391
[.0472]
8-26
Standard value
33.83 to 35.79 MPa
34.32 MPa
{345 to 365 kgf/cm
2 } [5192 psi]
[4978 psi] (the value when
it is new)
Valve opening pressure
-68.0 kgf/cm
-6.66 MPa
[-967 psi]
-54.4 kgf/cm
-5.33 MPa
[-774 psi]
-40.8 kgf/cm
-4.00 MPa
[-580 psi]
-27.2 kgf/cm
-2.67 MPa
[-387 psi]
-13.6 kgf/cm
-1.33 MPa
[-193 psi]
0.0
0.0 (Standard)
(Standard)
13.6 kgf/cm
1.33 MPa
[193 psi]
27.2 kgf/cm
2.67 MPa
[387 psi]
40.8 kgf/cm
4.00 MPa
[580 psi]
Pressure adjustment
by shim combinations
Valve Opening Pressure of Fuel Injection Nozzle -
2 }
2
2
2
2
2
2
2
2
Adjust