Workshop Manual

REPAIR STANDARDS 14–17
Major Name
Nominal Assembly
Category
of Part
Inspection Item Dimension Standard Limit Repair Procedure Comments
Value
Technology Needle valve seat: 7.8MPa
Repair or replace parts
(80 kgf/cm
2/
138psi)
with leaks from seat area
Needle valve shaft seat: seconds
Impress fuel pressure of 29.4MPa Fuel used: diesel fuel; (300kgf/cm
2
/4267psi) (nozzle starting
5.0 or more
Replace
clay (Redwood);
pressure and measure time required for
37 – 40 seconds
pressure to drop from 24.5MPa (250kgf/cm
2
120°C (248°F)
/3556psi) to19.6MPa (200kgf/cm
2
/2845psi).
Fuel spray and injection
Impress fuel pressure of Adjust needls valve opening pressure to 19.1MPa Replace faulty parts (195kgf/cm
2
/2770psi)
Warning lamp indication Check for looseness, cuts or damaged
Repair
insulation to wiring.
Shaft runout
0.06 or less
0.1
Replace rotor
(0.0024) (0.0038)
Bearing chatter Replace bearings
Rated output current 27 V (5000 min
-1
) 50A
Fuel systemElectrical
Injection Nozzle
Charge/
Discharge
indication
Wiring
Alternator 24V, 50A
(MITSUBISHI 1-81200-530-1)
Rotor
Perform-
ance
()
(
)
1
Visually inspect, no relatively large drops scattered.
2
No drops scattered to one side.
3
No unevenness of spray from jets.
If warning indicator lights when engine is operating at normal speeds, check and repair electrical system.
Rotate by hand and check for smooth rotation; no abnormal sound or resis- tance should be felt.