1995 ISUZU TROOPER Workshop Manual

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Page 625 of 1928

ISUZU TROOPER 1995 Workshop Manual ENGINE (V6 3.2L DOHC AND SOHC) 6A1-67
TORQUE SPECIFICATION (CONTD) N·m(lb·ft)
Fig. 6A1-84

Page 626 of 1928

ISUZU TROOPER 1995 Workshop Manual 6A 1-68 ENGINE (V6 3.2L DOHC AND SOHC)
·~:; 1 TORQUE SPECIFICATION (CONTD) N·m(lb·ft)
Fig. 6A1-85
Ill

Page 627 of 1928

ISUZU TROOPER 1995 Workshop Manual ENGINE (V6 3.2L DOHC AND SOHC) 6A1-69
SPECIAL TOOLS
ILLUSTRATION TOOL NO.
TOOL NAME ILLUSTRATION TOOL NO.
TOOL NAME
~
J-21687-02
Remover: Tie rod end ~
J-8614-01
Holder: Crankshaft
0
J-

Page 628 of 1928

ISUZU TROOPER 1995 Workshop Manual MEMO
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•

Page 629 of 1928

ISUZU TROOPER 1995 Workshop Manual ENGINE COOLING 68-1
SECTION 68
ENGINE COOLING
CONTENTS
General Description . . . . . . . . . . . . . . . . . . . . . . . . . . 68-1 Radiator . . . . . . . . . . . . . . . . . . . . . . . . . .

Page 630 of 1928

ISUZU TROOPER 1995 Workshop Manual 68 - 2 ENGINE COOLING
The cooling system is a pressurized Engine Coolant
(EC) forced circulation type which consists of water
pump, thermostat cooling fan, radiator and other
components. The au

Page 631 of 1928

ISUZU TROOPER 1995 Workshop Manual Mixing ratio(%) 0 10 20 30 40 50
~
-10

1
-30

~ -40
In case of 8.5 lit total cooling system capacity
Mixing Anti-freeze
Water: solution: ratio (%) lit. (U.S. gal) lit. (U.S. gal.)

Mixing ratio(%) 0 10 20 30 40 50
~
' -10
'
1
' -30

~ -40
In case of 8.5 lit total cooling system capacity
Mixing Anti-freeze
Water: solution: ratio (%) lit. (U.S. gal) lit. (U.S. gal.)
0 0 0
8.5 (2.2) 10 0.9 (0.3) 7.6 (2.0) 15
1.3 (0.4) 7.2 (1.9) 20 1.7 (0.5) 6.8 (1.8)
25 2.1 (0.6) 6.4 (1.7) 30 2.6 (0.7) 5.9 (1.6)
35 3.0 (0.8) 5.5
(1.5) 40 3.4 (0.9) 5.1 (1.3)
45 3.8 (1.0) 4.7 (1.2) 50 4.3 (1.1)
4.2 (1.1)
Fig. 68-5
ENGINE COOLING 68-3
• Mixing ratio
Check
the specific gravity of engine coolant in the
cooling system temperature ranges from oo C to
50° C using a suction type hydrometer, then deter
mine the densityofthe Engine Coolant by referring
to the table. (Fig. 68-6)
1,100 1'-........ ........ ...... .............. Mixing ratio
~"""--r-... 1'-""' 1,1)90
........ ...... ........ ........ .......... '
1,000
'"" 1,07 o......_ 1'-........ I'-.......... I"-........ .......
I"-........ ..........
................. I"-........
'
1,080
....... I"-........ ~ ........ ......
........ "'" ~"""--r--..... 1,050
r-. ........ ~ .......... ......
---
........ ........ 1,040
r-.... !'--.. 1'-0 '"" ~"""--1'-.... ........ 1,03
1--....... ........ r--~ ........
'
1,020
....... ~ 1'-0 ~"""---.... 1,01
...... ,
'
1,000
10 20 30 40 50 60 70 Coolant temperature ("C)
Fig. 68-6
DIAGNOSIS
ENGINE COOLING TROUBLE
Condition Possible cause Correction
Engine
overheating Low Engine Coolant level Replenish
Thermo unit faulty Replace
Faulty
thermostat Replace
Faulty
Engine Coolant unit Repair or replace
Clogged
radiator Clean or replace
Faulty
radiator cap Replace
Low engine oil level or use of improper Replenish or change oil
engine oil
Clogged exhaust system Clean exhaust system or replace
faulty parts
Faulty Throttle Position sensor Replace throttle valve assembly
Open or shorted Throttle Position sensor circuit Repair or replace
Damaged cylinder head gasket Replace
Engine overcooling Faulty thermostat Replace
Engine slow to Faulty thermostat Replace
warm-up Thermo unit faulty Replace

Page 632 of 1928

ISUZU TROOPER 1995 Workshop Manual 68 - 4 ENGINE COOLING
ON-VEHICLE SERVICE
DRAINING AND REFILLING COOLING
SYSTEM
Before draining the cooling system, inspect the sys
tem and perform any necessary service to ensure that
it is

68 - 4 ENGINE COOLING
ON-VEHICLE SERVICE
DRAINING AND REFILLING COOLING
SYSTEM
Before draining the cooling system, inspect the sys
tem and perform any necessary service to ensure that
it is clean, does not leak and is in proper working
order. The Engine Coolant (EC) level should be be
tween the "MIN" and "MAX" lines of reserve tank
when the engine is cold. If low, check for leakage and
add
EC up to the "MAX" line. There should not be any
excessive deposit of rust or scales around the radiator
cap
or radiator filler hole, and the EC should also be
free
from oil. Replace the EC if excessively dirty.
1. Completely drain the cooling system by opening
the drain petcock at the bottom of the radiator.
2. Remove the radiator cap.
W WARNING
To avoid the danger of being burned, do not
remove the cap while the engine and radiator
are still hot. Scalding fluid and steam can be
blown out under pressure.
3. Disconnect all hoses from the EC reserve tank.
Scrub and clean the inside of the reserve tank with
soap and water. Flush it well with clean water,
then drain it. Install the reserve tank and hoses.
WATER PUMP
3
j
2
4. Refill the cooling system with the EC using a
solution that is at least 50 percent antifreeze but no
more than 70 percent antifreeze.
5. Fill the radiator to the base of the filler neck.
Fill the EC reserve tank to "MAX" line when the
engine is cold.
6. Block the drive wheels and firmly apply the park
ing brake.
Shift an automatic transmission to "P"
(Park) or a manual transmission to neutral.
7. Remove the radiator cap. Start the engine and
warm it up at 2,500 -3,000 rpm for about 30
minutes.
8. When the air comes out from the radiator filler
neck and the EC level has gone down, replenish
with the EC. Repeat this procedure until the EC
level does not go down. Then stop the engine and
install the radiator cap. Let the engine cool down.
9. After the engine has cooled, replenish with EC up
to the "MAX" line of the reserve tank.
10. Start the engine. With the engine running at 3,000
rpm, make sure there is no running water sound
from the heater core (behind the center console).
11. If the running water sound is heard, repeat steps 7
to 10.
Removal steps
1. Timing
belt 2. Idle pulley 3. Water pump assembly
4. Gasket
Installation steps To install, follow the removal steps in the reverse order.
Fig. 6B-7
•

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