Isuzu NPR 4J Series User Manual

ENGINE FUEL 6C - 49
Adjustment specification of timer and
pump case pressure
Pump
rotation
(rpm)
Timer
piston
stroke (mm)
At pressure
of pump
(MPa (kg/cm
2
))
Remarks
1400 (1.5±0.4) —
1600 3.0±0.2
0.53±0.02
(5.4±0.2)
Standard
2100 5.7
Engine ; 4JB1 (For ’91/542A) (Gear drive)
Injection pump identification No. ; 104742-1480, 1490
Injection volume adjustment
+
0.4
−
0.3
F06LV023.tif
Adjustment specification of injection
volume
Pump
rotation
(rpm)
Average
injection
quantity
(mm
3
/ST)
Uneven
amplitude
(mm
3
/ST)
Oil
temperature
(°C)
Remarks
500 (29.7±4.5) 48±2
1000 (46.4±3.5) 50±2
1150 47.6±1.0 3.5 50±2 Standard
1800 (55.5 ) 50±2
2100 14.9±3.0 4.0 52±2 Standard
375 7.3±2.0 2.0 48±2 Standard
100 (60 - 100) 48±2
F06LV004.tif
F06LV021.tif
+
0.4
−
6.0
Timer adjustment

Isuzu NPR 4J Series Specifications

General

Brand	Isuzu
Model	NPR 4J Series
Category	Engine
Language	English