Isuzu NPR 4J Series User Manual

6C - 48 ENGINE FUEL
+
0.4
−
0.3
+
0.4
−
6.0
F06LV022.tif
Adjustment specification of timer and
pump case pressure
Timer
piston
stroke (mm)
At pressure
of pump
(MPa (kg/cm
2
))
Solenoid timer Solenoid timer
Pump
rotation
(rpm)
ON OFF ON OFF
Remarks
700 Over 0.5 — — —
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. ; 104742-1451, 1461, 1471
Injection volume adjustment
Timer adjustment
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
Adjustment specification of aneroid
compensator (For 104742-1471)
Pump
rotation
(rpm)
Altitude
(m)
Air pressure
difference
kPa
(mmHg)
Amount of
reduction
(mm
3
/ST)
Rate of
reduction
(%)
0000
(500)
-5.9±3.3
(-44±25)
Inflation
point
Inflation
point
1150
2000
-21.9
(-164)
(-5.2±1.3) (-11±3)
F06LV004.tif
F06LV021.tif

Isuzu NPR 4J Series Specifications

General

Brand	Isuzu
Model	NPR 4J Series
Category	Engine
Language	English