Injection Volume And Governor Performance Diagram - Isuzu NHR 4J Series Workshop Manual

INJECTION VOLUME AND GOVERNOR PERFORMANCE DIAGRAM

Engine ; 4JB1
Injection pump assembly No. ; 8943616830 (104741-6410)
8943616850 (104741-6430)
Adjustment specification of injection
volume
Average
Pump
injection
rotation
quantity
rpm
3
mm /ST
500 (38.6)
700 34.9±2.5
1000 42.1±1.0
1450 44.5±2.5
1800 47.6±3.0
2100 12.9±3.0
390 6.7±3.0
100 60 - 100
6C-44-1.tif
Adjustment specification of timer and
pump case pressure
Timer piston
Pump
stroke mm
rotation
Solenoid timer
rpm
ON
700 Over 0.5
1300 —
1600 —
1950 —
6C-44-2.tif
Adjustment specification of aneroid
compensator
Pump
Altitude
rotation
m
rpm
0
(500)
1000
2000
6C-44-3.tif
ENGINE FUEL 6C - 45
Uneven Oil
amplitude temperature Remarks
3
mm /ST °C
48±2
50±2
4.0 50±2 Standard
50±2
60±2
4.0 52±2
2.0 48±2
48±2
Air pressure
of pump
2
kPa (kg/cm )
Standard
Solenoid timer
OFF ON OFF
— — —
1.4±0.4 — —
490±20
3.9±2 — Standard
(5.0±0.2)
+ 0.4
7.0 — —
− 0.3
Air
pressure Amount of Rate of
difference reduction reduction
3
kPa mm /ST
(mmHg)
0 0
-5.9±3.3 Inflation Inflation
(-44±3) point
-21.9
-4.6±1
(-164)
%
0
point
-11±3