1998 OPEL FRONTERA battery

6B – 8 ENGINE COOLING
INSTALLATION
1. Thermostat
1) The jiggle valve of the thermostat must face the
cylinder head side.
2. Gasket
3. Install thermostat housing and tighten bolt to the
specified torque.
Torque: 20 Nꞏm (2.0 kgꞏm/14.5 lb ft)
4. Reconnect water hose
1) Fill coolant to full level.
2) Reconnect battery ground cable.
5. Start the engine check for coolant leakage.

ENGINE COOLING 6B – 9
RADIATOR
REMOVAL
1. Disconnect battery ground cable
2. Loosen drain plug to drain coolant.
3. Radiator Hose
1) Disconnect lower hose and upper hose from the
engine.
4. Fan Guide
1) Remove clips on both sides and the bottom lock.
5. Reservoir Tank Hose
1) Disconnect the hose from radiator.
6. Bracket
7. Radiator Assembly
1) Remove the radiator assembly upward by the
hoses taking care not to damage the radiator
core by the fan blade.
2) Remove rubber cushions on both sides of the
bottom.
INSPECTION
Radiator Cap
1) Measure the valve opening pressure with the
radiator cap tester. Replace the radiator cap if it
exceeds the standard.
Valve opening pressure: 93.2 – 122.7 kPa
(0.95 – 1.25 kg/cm
2/
13.5 – 17.8 psi)
Check the condition of the negative pressure valve in
the center of the valve seat side of the cap. If the valve
seat does not move smoothly due to rust or dust, clean
and replace the radiator cap.Radiator Core
1) Deformed radiator fins could reduce radiation
effects, resulting in overheating. Straighten the fins.
In such a case, take care not to damage the fin
roots.
2) Remove dust and other foreign materials.
Flushing the Radiator
1) Wash the inside of radiator and the coolant
passage with water and a neutral detergent.
Remove all scales and rust.
110RW017
110RS006

6B – 10 ENGINE COOLING
Checking for Coolant Leakage
1) Check the cooling system for leakage with the
radiator cap tester by applying 196.0 kPa (28.4 psi)
air pressure from filler neck to inside the radiator.
INSTALLATION
1. Radiator Assembly
1) Install rubber cushions on both sides of radiator
bottom.
2) Install radiator assembly with hose, taking care
not to damage the radiator core by a fan blade.
2. Bracket
1) Support the radiator upper tank with the bracket
and fix the radiator.
3. Reserve Tank Hose
4. Fan Guide, Lower
5. Radiator Hose
1) Connect inlet hose and outlet hose to the
engine.
2) Connect battery ground cable.
3) Pour coolant up to filler neck of radiator, and up
to MAX mark of reserve tank.
4) Start engine to warm up, and check for coolant
level. Replenish coolant if it does not reach the
radiator filler neck, and tighten the cap
completely.
110RS005
012RW080

ENGINE FUEL 6C – 1
ENGINE FUEL
CONTENTS
GENERAL DESCRIPTION
General Description . . . . . . . . . . . . . . . . . . 6C–1
On-Vehicle Service . . . . . . . . . . . . . . . . . . 6C–8
Fuel Filter Assembly . . . . . . . . . . . . . . . . 6C–8
Fuel Filter Cartridge . . . . . . . . . . . . . . . . 6C–8
Injector . . . . . . . . . . . . . . . . . . . . . . . . . . 6C–10High Pressure Oil Pump . . . . . . . . . . . . . 6C–14
Fuel Tank . . . . . . . . . . . . . . . . . . . . . . . . 6C–20
Fuel Gauge Unit . . . . . . . . . . . . . . . . . . . 6C–21
Fuel Filler Cap . . . . . . . . . . . . . . . . . . . . 6C–21
To realize the compatibility between low exhaust
emission and high engine output, an HEUI
(Hydraulically actuated Electronically controlled Unit
Injector) system, has been introduced. This system is
comprised of a hydraulic system, fuel system, and
electronic control system, using a high-pressure oil
pump in place of the conventional fuel injection pump.
The oil pressurized by means of this pump and by
signals from the ECM (Electronic Control Module)
actuates the fuel injector provided for each cylinder.
Inside of the fuel injector, fuel pressure is increased due
to the high-pressure oil. The ECM detects the driving
state of the vehicle, forms, signals sent by engine and
other part sensors, which determines the optimum fuel
injection amount and timing, thus controlling the fuel
injectors. Thus high engine output, good fuel economy,
and low exhaust emission are realized.When working on the fuel system, there are several
things to keep in mind:
1) Any time the fuel system is being worked on,
disconnect the negative battery cable except for
those tests where battery voltage is required.
2)Always keep a dry chemical (Class B) fire
extinguisher near the work area.
3) Replace all pipes with the same pipe and fittings
that were removed.
Clean and inspect “O” rings. Replace where
required.
4) Always relieve the line pressure before servicing
any fuel system components.
5) Do not attempt repairs on the fuel system until you
have read the instructions and checked the pictures
relating to that repair.
6) After maintenance work, push priming pump and
send enough fuel to the fuel system before starting
the engine.
NOTE: In comparison with the conventional engine,
the capacity of fuel passage in the 4JX1 engine is
larger. It takes the priming pump more time to fill the
engine with fuel.

6C – 8 ENGINE FUEL
ON-VEHICLE SERVICE
FUEL FILTER ASSEMBLY
REMOVAL
1. Disconnect battery ground cable.
2. Fuel Filler cap
3. Fuel Hose
1) Disconnect fuel hose from filter body.
Plug the hose ends to prevent fuel spillage.
4. Remove the Bolt on Fuel Filter Bracket
5. Remove Fuel Filter Assembly
INSTALLATION
1. Install the fuel filter assembly
2. Tighten the Fuel Filter Bracket Fixing Bolt
3. Fuel Hose
1) Connect hoses to filter body.
4. Fuel Filler Cap
1) Connect the battery ground cable.
2) Feed fuel to the fuel pump by priming, and bleed
the air from fuel system.
FUEL FILTER CARTRIDGE
DISASSEMBLY
1. Drain fuel completely from the fuel filter.
2. Protect the filter body with cloth and lightly grip with
a vise.
3. Remove the cartridge using a filter wrench.
Filter wrench: 5-8840-0203-0
1
Legend
(1) Priming Pump
012RW111
012RW112

ENGINE FUEL 6C – 11
REMOVAL
Prior to removal, be sure to confirm and record the
group code of the injector installed using Tech2.
1. Disconnect battery ground cable.
2. Remove air cleaner cover and air duct.
3. Remove intercooler.
Refer to “Intercooler” in this manual.
4. Remove PCV hose and pipe.
5. Remove cylinder head noise insulator cover.
6. Remove high pressure oil pipe.
CAUTION:
1) Sleeve nut should be loosened with cloth tied
around to prevent oil from spurting due to the
remaining pressure.
2) High oil pressure pipe should be disconnected
with cloth tied around the intake manifold glow
plug to prevent oil from flowing out of the oil
rail.
7. Loosen eye bolt of fuel pipe at fuel pump side.
NOTE: Cloth should be put around the loosened eye
bolt to prevent fuel from flowing out.
8. Remove fuel return hose at chassis side.
9. Remove PCV hose to cylinder head cover.
10. Remove cylinder head cover.
11. Drain the oil from oil rail assembly.
NOTE: Do not drop O-ring
12. Record the grade code of injector for each cylinder
that is indicated on the upper portion of injector.
There are nine kinds of grade code available, one
alphabet letter and one numeral letter.
Grade codeLegend
(1) Part Number
(2) Category Number (Grade code)
(3) Serial Number
(4) Bar Code
13. Remove harness connector from each injector.
14. Loosen nuts and bolts for oil rail.
15. Remove injector fixing bolts.
16. Remove injector clamp.
17. Remove injector assembly.
INSTALLATION
1. Install oil rail, tighten temporarily
2. Install injector assembly.
NOTE:
1) Do not forget to install O-ring between injector and
oil rail.
2) Use new O-ring
3) Clean O-ring groove and fitting surface of parts.
4) Apply engine oil to O-ring.
3. Install injector fixing bolts, tighten temporarily.
4. Install injector clamp, tighten nut temporarily.
5. Tighten injector fixing bolts to the specified torque.
Torque: 6.5 Nꞏm (0.7 kgꞏm / 5.1 lb ft)
6. Tighten injector clamp nut to the specified torque
with special method.
Torque: 30 Nꞏm (3.1 kgꞏm / 22.4 lb ft) then loosen a
time again tighten as following torque.
Torque: 25 Nꞏm (2.4 kgꞏm / 17.4 lb ft)
7. Tighten oil rail to the specified torque.
Torque: 20 Nꞏm (2.0 kgꞏm / 14.5 lb ft)
1
4
32
055RW00001
Category number
A– 1
A– 2
A– 3
B – 1
B – 2
B – 3
C – 1
C – 2
C – 3

6C – 14 ENGINE FUEL
HIGH PRESSURE OIL PUMP
REMOVAL
1. Disconnect battery ground cable.
2. Remove air cleaner cover and air duct
3. Intercooler assembly
Refer to “Intercooler” in this manual.
4. Remove high pressure oil pipe
5. Timing belt cover
Disconnect CMP sensor cable.
Remove CMP sensor bracket.
6. Tensioner
7. Timing Belt
8. Remove high pressure oil pump timing pulley
9. Remove crankshaft damper pulley
10. Remove timing gear case cover
11. Remove idle gear A
Before removing idle gear A, set two bolts to the
sub gear of idle gear A and turn it to align the teeth
of idle gear A main gear.
Then lock them by bolts as shown in the illustration.Legend
(1) Idle gear A sub gear
(2) Idle gear A main gear
(3) Bar
(4) Lock bolt
1
2
43
Legend
(1) O-Ring
(2) High Pressure Oil Pump Assembly
(3) Nut
(4) O-Ring
040RW007
4 1
2
3
014RW177

6C – 20 ENGINE FUEL
FUEL TANK
REMOVAL
1. Disconnect battery ground cable.
2. Remove fuel filler cap.
3. Drain fuel.
After drain the fuel tighten the drain plug with
specified torque.
Torque : 20 Nꞏm (2.0 kgꞏm/14 lb ft)
4. Remove fuel filler hose and let air pull off hose.
5. Remove breather hose.
6. Remove fuel feed hose and fuel return hose.
7. Disconnect harness connector from fuel gauge unit.
8. Remove under cover.
9. Remove fuel tank assembly.
INSTALLATION
1. Fuel tank assembly.
1) Place a flange on right side of tank on the
bracket.
2) Install a flange to left side of the bracket from the
bottom, and tighten bolts to the specified torque.
Torque : 36 Nꞏm (3.7 kgꞏm/26.8 lb ft)
2. Install fuel hose and fuel return hose.
3. Install the breather hose.
4. Reconnect harness connector to fuel gauge unit.
5. Install under cover.
6. Install fuel filler hose and let air pull off hose.
7. Fill fuel tank with fuel and tighten filler cap.
8. Reconnect battery ground cable.
1
2
6
7
4
5
3
Legend
(1) Fuel Tank Assembly
(2) Gauge Unit
(3) Under Cover(4) Fuel Filler Hose
(5) Fuel Filler Cap
(6) Breather Hose
(7) Control Valve (Except EC)
140RX023