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)