1998 OPEL FRONTERA Workshop Manual

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Page 5377 of 6000

OPEL FRONTERA 1998 Workshop Manual 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
specif

Page 5378 of 6000

OPEL FRONTERA 1998 Workshop Manual 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 Gui

Page 5379 of 6000

OPEL FRONTERA 1998 Workshop Manual 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 insi

Page 5380 of 6000

OPEL FRONTERA 1998 Workshop Manual ENGINE COOLING 6B – 11
DRIVE BELT ADJUSTMENT
INSPECTION
Check drive belts for wear or damage, and replace with
new ones as necessary. Check belts for tension, and
adjust as necessary.
1) Ch

Page 5381 of 6000

OPEL FRONTERA 1998 Workshop Manual 6B – 12 ENGINE COOLING
Torque:
For A.C. Generator fixing bolt
40 Nꞏm (4.1 kgꞏm/29.7 lb ft)
For Adjusting plate fixing bolt
24 Nꞏm (2.4 kgꞏm/17.4 lb ft)
For Adjusting plate lock bolt
19 Nꞏm

Page 5382 of 6000

OPEL FRONTERA 1998 Workshop Manual ENGINE FUEL 6C – 1
ENGINE FUEL
CONTENTS
GENERAL DESCRIPTION
General Description . . . . . . . . . . . . . . . . . . 6C–1
On-Vehicle Service . . . . . . . . . . . . . . . . . . 6C–8
Fuel Filt

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.

Page 5383 of 6000

OPEL FRONTERA 1998 Workshop Manual 6C – 2 ENGINE FUEL
FUEL FLOW
For EC
89
1011141
2
4
12
5 6
7
3
13
Legend
(1) Fuel Filler Cap
(2) Fuel Tank
(3) Rollover Valve
(4) Fuel Supply Pipe
(5) Fuel Filter with Priming Pump
(6) Fuel Pump
(7)

Page 5384 of 6000

OPEL FRONTERA 1998 Workshop Manual ENGINE FUEL 6C – 3
For except EC
78
9101
2
3
4 5
6
11
Legend
(1) Fuel Filler Cap
(2) Fuel Tank
(3) Fuel Supply Pipe
(4) Fuel Filter with Priming Pump
(5) Fuel Pump(6) High Pressure Oil Pump
(7) Cyli

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