Isuzu Trooper (1998-2002 year). Manual — part 549
6A – 4 ENGINE MECHANICAL
Engine Cooling
Starting System
Cooling system
Coolant forced circulation
Radiator
(2 tube in row) Tube type corrugated
Heat radiation capacity
J/h (kcal/h)
318 x 10
6
(76000)
Heat radiation area
m
2
(ft
2
)
15.63 (1.454)
Front area
m
2
(ft
2
)
0.309 (2.029)
Dry weight
N (kg/lb)
83 (8.5/18.7)
Radiator cap
Valve opening pressure
kPa (kg/cm
2
/ psi)
93.3 – 122.7 (0.95 – 1.25/13.5 – 17.8)
Coolant capacity
lit (Imp.qt./US qt.)
M/T 2.5 (2.2/2.6)
A/T 2.4 (2.1/2.5)
Coolant pump
Centrifugal impeller type
Pulley ratio
(to 1)
1.2
Coolant total capacity
lit (Imp.qt./US qt.)
9.3 (8.2/9.8)
For Europe: 9.8 (8.6/10.4)
Model
HITACHI S14-0
Rating
Voltage
V
12
Output
kW
2.8
Time
sec
30
Number of teeth of pinion
9
Rotating direction (as viewed from pinion)
Clockwise
Weight (approx.)
N(kg/lb)
49 (5.0/11)
No-load characteristics
Voltage/current
V/A
11/160 or less
Speed
rpm
4000 or more
Load characteristics
Voltage/current
V/A
8.76/300
Torque
N·m(kg·m/lb·ft)
7.4 (0.75/5.4) or more
Speed
rpm
1700 or more
Locking characteristics
Voltage/current
V/A
2.5/1100 or less
Torque
N·m(kg·m/lb·ft)
18.6 (1.9/14) or more
ENGINE MECHANICAL 6A – 5
Charging System
Model (HITACHI)
LR190-750B
LR1100 – 731
Rated voltage
V
12
Rated output
A
90
100
Rotation direction
Clockwise
(As viewed from pulled)
Pulley effective diameter
mm (in)
69 (2.72)
Weight
N (kg/lb)
52 (5.3/11.7)
6A – 6 ENGINE MECHANICAL
SERVICE STANDARD
Engine
mm (in)
Parts
Items
Service standard
Service limit
Remarks
Cylinder Head
Valve Spring
Valve and
Valve guide
Camshaft
0.075 (0.0030) or less
95.0 (3.740)
45.7 (1.8)
—
241 (54.2)
6.959 – 6.977
(0.27 – 0.272)
6.692 – 6.970
(0.271 – 0.272)
0.023 – 0.056
(0.0009 – 0.0022)
0.03 – 0.063
(0.0011 – 0.0024)
8.0 (0.312)
1.1 (0.0433)
1.2 (0.0472)
1.2 (0.0472)
45°
2.1 (0.0827)
2.1 (0.0827)
0.08 (0.00314)
46.67 (1.8374)
46.77 (1.8413)
29.939 – 29.960
(1.167 – 1.168)
0.02 (0.0008) or less
0.40 – 0.082
(0.0016 – 0.0032)
0.50 (0.0197)
—
44.8 (1.765)
1.6 (0.063)
210 (47.22)
6.92 (0.270)
6.90 (0.269)
0.19 (0.0074)
0.20 (0.0079)
—
1.6 (0.0630)
1.1 (0.0433)
1.1 (0.0433)
—
2.6 (0.1024)
2.6 (0.1024)
2.0 (0.00797)
46.57 (1.8335)
46.67 (1.8374)
29.84 (1.1748)
0.10 (0.0039)
0.12 (0.0047)
Cannot be
reground
Cylinder head lower surface for flatness
Cylinder head height
Free height
Squareness
Spring tension (when assembled)
N(lb)
Diameter of Valve stem
IN
EX
Valve and valve guide clearance
IN
EX
Valve guide upper end height
(Measured from the Cylinder head upper
face)
Valve guide margin
Valve thickness
IN
EX
Valve seat contact surface angle
Valve seat contact width
IN
EX
End play
Cam lobe height
IN
EX
Journal diameter
Runout
Camshaft oil clearance
ENGINE MECHANICAL 6A – 7
Parts
Items
Service standard
Service limit
Remarks
Tappet
Crankshaft
Piston,
Piston pin,
Piston ring
and
Connecting
rod
32.977 – 32.990
(1.2983 – 1.2988)
0.01 – 0.039
(0.0004 – 0.0015)
0.04 – 0.20
(0.0016 – 0.0079)
0.037 – 0.068
(0.0015 – 0.0027)
0.05 (0.0020) or less
69.917 – 69.932
(2.7526 – 2.7532)
52.915 – 52.930
(2.0933 – 2.0839)
95.320 – 95.349
(3.7527 – 3.7539)
0.11 – 0.92
(0.0043 – 0.0362)
0.25 – 0.40
(0.0098 – 0.0157)
0.20 – 0.35
(0.0079 – 0.0138)
0.10 – 0.30
(0.0039 – 0.0118)
0.05 – 0.09
(0.0020 – 0.0035)
0.03 – 0.07
(0.00118 – 0.00276)
30.995 – 31.000
(1.203 – 1.205)
0.008 – 0.020
(0.0003 – 0.00079)
0.005 – 0.018
(0.0002 – 0.0007)
0.08 (0.031) or less
0.05 (0.0020) or less
0.230 (0.0091)
0.022 – 0.042
(0.0009 – 0.0017)
32.950 (1.2972)
0.10 (0.0039)
0.30 (0.00118)
0.11 (0.0043)
0.08 (0.0031)
69.91 (2.7524)
52.90 (2.0827)
—
—
1.5 (0.0590)
1.5 (0.0590)
1.5 (0.0590)
0.15 (0.0059)
0.15 (0.0059)
30.97 (1.2078)
0.05 (0.0020)
0.04 (0.0016)
0.20 (0.00787)
0.15 (0.0059)
0.35 (0.0138)
0.0060
(0.0024)
Uneven
wear limit
0.05 (0.002)
Uneven
wear limit
0.08 (0.0031)
Per 100
(3.94)
Per 100
(3.94)
Outside diameter
Oil clearance
Thrust clearance
Main bearing oil clearance
Crankshaft runout
Main journal diameter
Crank pin diameter
Piston diameter
Piston clearance
Piston ring gap
1st
2nd
Oil
Piston ring clearance
1st/2nd
Oil
Piston pin diameter
Piston pin clearance
(Between connecting rod and piston pin)
Piston pin clearance
(Between piston and piston pin)
Connecting rod alignment
Bend
Twist
Connecting rod thrust clearance
Oil clearance
(Between crank pin and Connecting rod)
mm (in)
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