Mitsubishi S6R2 Series User Manual

8-25
Chapter 8 FUEL SYSTEM
2.3 Fuel Injection Nozzle - Inspect and Adjust
2.3.1 Fuel Injection Start Pressure - Inspect and
Adjust
(Screw 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) To adjust the injection start pressure, remove the set
screw on the nozzle holder, loosen the cap nut and turn
the adjusting screw with a screwdriver.
(4) After adjustment, tighten the cap nut and set screw to
the specified torque.
(5) After tightening the set screw, inspect the injection start
pressure again to make sure it is within the standard
value.
Fuel Injection Start Pressure - Inspect
Fuel Injection Start Pressure - Adjust
Never touch the fuel injection nozzle orifice during
nozzle injection test.
Item Nominal value Standard value
Fuel
injection
starting
pressure
37560-22010
34.32 MPa
{350 kgf/cm
2
}
[4978 psi]
34.32 to 34.81 MPa
{350 to 355 kgf/cm
2
}
[5049 psi]
(the value when it is
new)
37560-35000
37560-39000
37561-44000
37860-06000
30.40 MPa
{300 kgf/cm
2
}
[4267 psi]
30.40 to 30.89 MPa
{310 to 315 kgf/cm
2
}
[4480 psi]
(the value when it is
new)
37760-14001
37760-22001
Nozzle tester
P/N:83091-03301
Set screw
39 ± 5 N·m
{4 ± 0.5 kgf·m}
[29 ± 3.7 lbf·ft]
Pressure
- decrease
Pressure
- increase
Cap nut
73.5 ± 4.5 N·m
{7.5 ± 0.5 kgf·m}
[54.2 ± 3.3 lbf·ft]

Mitsubishi S6R2 Series Specifications

General

Brand	Mitsubishi
Model	S6R2 Series
Category	Engine
Language	English