Opel Frontera UBS. Service manual — part 1344

6C – 18 ENGINE FUEL

HIGH PRESSURE OIL PIPE INSTALLATION

1. Install the nipple filter

1) Wash thread of the nipple filter, remove engine

oil and foreign material and air blow it.

2) Install nipple filter to high pressure oil pump inlet

port, tighten to the specified torque.

Torque : 90 N·m (9.2 kg·m/66.5 lb ft)

2. Install the edge filter.

1) Wash thread, O-ring groove and fitting surface

of edge filter, remove engine oil and foreign
materials.

2) Install edge filter to high pressure oil pump,

tighten edge filter to the specified torque.

Torque : 90 N·m (9.2 kg·m/66.5 lb ft)

3. Install upper bracket to two way valve, tighten them

temporarily.

4. Install pipe A to two way valve, tighten pipe A

temporarily with union nut D.

5. Install two way valve assembly to cylinder block,

tighgten with union nut C temporarily.

6. Install pipe B to two way valve, tighten union nut E

and union nut F temporarily.

7. Tighten upper bracket to specified torque.

Torque : 20 N·m (2.0 kg·m/14.5 lb ft)

8. Tighten union nut in the following order, union nut

C, D, F, and E to the specified torque.

Torque : 80 N·m (8.1 kg·m/57.9 lb ft)

9. Tighten lower bracket to the specified torque.

Torque : 20 N·m (2.0 kg·m/14.5 lb ft)

NOTE:

1) Wash inside pipe, inside union nut and O-ring seal

surface to remove engine oil and foreign materials.

2) It is recommended to check and replace the edge

filter when overhauling the engine, or if it is broken
inside the engine.

1

2

3

5

6

8

9

7

10

4

Legend

(1)

Union Nut F

(2)

Pipe B

(3)

Union Nut E

(4)

Upper Bracket

(5)

Union Nut D

(6)

Pipe A

(7)

Union Nut C

(8)

Lower Bracket

(9)

To Oil Rail

(10)

To High Pressure Oil Pump through Edge Filter

040RW015

ENGINE FUEL 6C – 19

Nipple Filter and Edge Filter Installation

The nipple filter is provided at the front of the inlet port
side. The edge filter is provided at the rear of the outlet
port on the high pressure oil pump assembly.

1. Install the nipple filter

1) Wash threads and filter to remove engine oil and

foreign materials before installing the nipple
filter.

2) Install the nipple filter to the inlet port of high

pressure oil pump, tighten to the specified
torque.

Torque : 90 N·m (9.2 kg·m/66.5 lb ft)

(Tighten dry condition)

2. Install the edge filter.

1) Wash threads and O-ring groove and part fitting

surface to remove engine oil and foreign
materials before installing the nipple filter.

2) Install edge filter to outlet port of high pressure

oil pump, tighten to the specified torque.

Torque : 90 N·m (9.2 kg·m/66.5 lb ft)

(Tighten dry condition)

NOTE: It is recommended to check and replace the
edge filter when overhauling the engine, or if it is broken
inside the engine.

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 N·m (2.0 kg·m/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 N·m (3.7 kg·m/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

ENGINE FUEL 6C – 21

FUEL GAUGE UNIT

1

2

6

7

4

5

3

140RX023

REMOVAL

1 Disconnect battery ground cable.
2 Loosen fuel filler cap.
3 Drain fuel.

After drain the fuel tighten the drain plug with
specified torque.

Torque : 20 N·m (2.0 kg·m/14 lb ft)

4. Disconnect harness connector from fuel gauge unit.
5. Fuel Gauge Unit

1) Remove the fixing screws, then the fuel gauge

unit.

INSTALLATION

1. Fuel Gauge Unit
2 Connect the harness connector to the fuel gage

unit.

3 Fill the tank with fuel and tighten fuel filler cap.
4 Connect battery ground cable.

FUEL FILLER CAP

The fuel filler cap contains a vacuum valve. If a
negative pressure develops in the fuel tank, the
external valve of the fuel filler cap opens to allow the
fresh air to flow into the fuel tank through the vacuum
valve.

INSPECTION

Check the seal ring in the filler cap for presence of any
abnormality and for seal condition.
Replace the filler cap, if abnormal.

Legend

(1) Vacuum Valve
(2) Pressure Valve

Legend

(1)

Fuel Tank Assembly

(2)

Fuel Gauge Unit

(3)

Under Cover

(4)

Filler Hose

(5)

Filler Cap

(6)

Breather Hose

(7)

Control Valve (Except EC)

1

2

060RW098