Isuzu NPR 4J Series User Manual

6C - 50 ENGINE FUEL
Cold start device adjustment
Adjustment specification of timer and
pump case pressure
Pump
rotation
(rpm)
Timer
piston
stroke (mm)
At pressure
of pump
(MPa (kg/cm
2
))
Remarks
500 0.5
1000 3.1±0.2
0.402±0.029
(4.1±0.3)
Standard
1440 5.3±0.4
1950 7.8
+
0.4
−
0.3
+
0.8
−
0.4
Adjustment specification of injection
volume
Pump
rotation
(rpm)
Average
injection
quantity
(mm
3
/ST)
Uneven
amplitude
(mm
3
/ST)
Oil
temperature
(°C)
Remarks
500 (51.6) 48±2
1000 52.0±1.0 50±2 Standard
1440 (49.2) 3.5 50±2
1800 (51.0) 50±2
2100 19.6±3.0 5.5 52±2
360 13.2±2.0 2.0 48±2
100 (80 - 120) 48±2
Engine ; 4JG2 (For ’91/542A) (Gear drive)
Injection pump identification No. ; 104746-1222
Injection volume adjustment
Timer adjustment
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Isuzu NPR 4J Series Specifications

General

Brand	Isuzu
Model	NPR 4J Series
Category	Engine
Language	English