G-34
MX5100, WSM
G GENERAL
[9] CHECK POINT OF EVERY 1500 HOURS
Checking Fuel Injection Nozzle Injection Pressure
CAUTION
• Check the nozzle injection pressure and condition after
confirming that there is nobody standing in the direction of
the injected fuel.
• If the injected fuel from the nozzle directly contacts the
human body, cells may be destroyed and blood poisoning
may be caused.
W10368740
■ Nozzle Spraying Condition
1. Set the injection nozzle to a nozzle tester, and check the nozzle
spraying condition.
2. If the spraying condition is defective, replace the nozzle piece.
W10181310
■ Fuel Injection Pressure
1. Set the injection nozzle to a nozzle tester.
2. Slowly move the tester handle to measure the pressure at which
fuel begins jetting out from the nozzle.
3. If the measurement is not within the factory specifications,
replace the adjusting washer (1) in the nozzle holder to adjust it.
(Reference)
• Pressure variation with 0.01 mm (0.0004 in.) difference of
adjusting washer thickness.
Approx. 235 kPa (2.4 kgf/cm
2
, 34 psi)
W10182100
(a) Good (b) Bad
Fuel injection pressure Factory spec.
13.73 to 14.71 MPa
140 to 150 kgf/cm
2
1992 to 2133 psi
(1) Adjusting Washer
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