1998 OPEL FRONTERA Workshop Manual

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Page 4593 of 6000

OPEL FRONTERA 1998 Workshop Manual 6A–97
ENGINE MECHANICAL
ILLUSTRATIONTOOL NO.
TOOL NAME
5–8840–2443–0
(J–42686)
Lever; Gear spring
5–8840–2447–0
(J–43041)
Holder; Universal

Page 4594 of 6000

OPEL FRONTERA 1998 Workshop Manual ENGINE COOLING6B–1
ENGINE
ENGINE COOLING
CONTENTS
Service Precaution 6B–1. . . . . . . . . . . . . . . . . . . . . .
General Description 6B–2. . . . . . . . . . . . . . . . . . . . .
Diagnosis

ENGINE COOLING6B–1
ENGINE
ENGINE COOLING
CONTENTS
Service Precaution 6B–1. . . . . . . . . . . . . . . . . . . . . .
General Description 6B–2. . . . . . . . . . . . . . . . . . . . .
Diagnosis 6B–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Draining and Refilling Cooling System 6B–6. . . . .
Water Pump 6B–7. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Water Pump and Associated Parts 6B–7. . . . . . .
Removal 6B–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inspection 6B–7. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 6B–7. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Thermostat 6B–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Thermostat and Associated Parts 6B–8. . . . . . . .
Removal 6B–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inspection 6B–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . Installation 6B–8. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Radiator 6B–9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Radiator and Associated Parts 6B–9. . . . . . . . . .
Removal 6B–9. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inspection 6B–10. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 6B–11. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Drive Belt and Cooling Fan 6B–12. . . . . . . . . . . . . . .
Drive Belt and Associated Parts 6B–12. . . . . . . . .
Inspection 6B–12. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 6B–12. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Main Data and Specifications 6B–13. . . . . . . . . . . . .
Special Tool 6B–14. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service Precaution
WARNING: IF SO EQUIPPED WITH A
SUPPLEMENTAL RESTRAINT SYSTEM (SRS),
REFER TO THE SRS COMPONENT AND WIRING
LOCATION VIEW IN ORDER TO DETERMINE
WHETHER YOU ARE PERFORMING SERVICE ON OR
NEAR THE SRS COMPONENTS OR THE SRS
WIRING. WHEN YOU ARE PERFORMING SERVICE
ON OR NEAR THE SRS COMPONENTS OR THE SRS
WIRING, REFER TO THE SRS SERVICE
INFORMATION. FAILURE TO FOLLOW WARNINGS
COULD RESULT IN POSSIBLE AIR BAG
DEPLOYMENT, PERSONAL INJURY, OR
OTHERWISE UNNEEDED SRS SYSTEM REPAIRS.
CAUTION: Always use the correct fastener in the
proper location. When you replace a fastener, use
ONLY the exact part number for that application.
ISUZU will call out those fasteners that require a
replacement after removal. ISUZU will also call out
the fasteners that require thread lockers or thread
sealant. UNLESS OTHERWISE SPECIFIED, do not
use supplemental coatings (Paints, greases, or other
corrosion inhibitors) on threaded fasteners or
fastener joint interfaces. Generally, such coatings
adversely affect the fastener torque and the joint
clamping force, and may damage the fastener. When
you install fasteners, use the correct tightening
sequence and specifications. Following these
instructions can help you avoid damage to parts and
systems.

Page 4595 of 6000

OPEL FRONTERA 1998 Workshop Manual 6B–2
ENGINE COOLING
General Description
030RW001
Legend
(1) Water Pump
(2) Thermostat
(3) Radiator
(4) Reserve Tank
(5) Cooling Fan
(6) Cylinder Block(7) Cylinder Head
(8) Right Bank
(9) Throttle Bo

Page 4596 of 6000

OPEL FRONTERA 1998 Workshop Manual ENGINE COOLING6B–3
Thermostat
The thermostat is a wax pellet type with a air hole(1) and is
installed in the thermostat housing.
031RW002
Radiator
The radiator is a tube type with corrugated fins. I

Page 4597 of 6000

OPEL FRONTERA 1998 Workshop Manual 6B–4
ENGINE COOLING
NOTE: Antifreeze solution + Water = Total cooling
system capacity.
Total Cooling System Capacity
M/T 8.8Lit (2.32Us gal)
A/T 8.4Lit (2.22Us gal)
B06RW002
Mixing ratio
Check

Page 4598 of 6000

OPEL FRONTERA 1998 Workshop Manual ENGINE COOLING6B–5
Diagnosis
Engine Cooling Trouble
ConditionPossible causeCorrection
Engine overheatingLow Engine Coolant levelReplenish
Incorrect fan installedReplace
Thermo meter unit faultyRepla

Page 4599 of 6000

OPEL FRONTERA 1998 Workshop Manual 6B–6
ENGINE COOLING
Draining and Refilling Cooling
System
Before draining the cooling system, inspect the system
and perform any necessary service to ensure that it is
clean, does no

6B–6
ENGINE COOLING
Draining and Refilling Cooling
System
Before draining the cooling system, inspect the system
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 between 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 plug (2) at the bottom of the radiator.
110RW002
2. Remove the radiator cap.
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.
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 parking
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 8 to
10.

Page 4600 of 6000

OPEL FRONTERA 1998 Workshop Manual ENGINE COOLING6B–7
Water Pump
Water Pump and Associated Parts
030RS002
Legend
(1) Timing Belt
(2) Idle Pulley(3) Water Pump Assembly
(4) Gasket
Removal
1. Disconnect battery ground cable.
2. Drain c

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