Injectors — removal and installation (Opel Omega A)

Contents: Removal ⬇ Installation ⬇

1. Faulty injectors are the cause of a strong knocking sound in the engine and subsequent damage to the bearings. In this case, turn the engine to idle speed and loosen the union nuts of the injection channels one by one. If the knocking sound disappears when you loosen any nut, then the faulty injector has been found.

2. A defective injector can also be detected at higher speeds, also without loosening the union nuts. If the number of revolutions remains unchanged after loosening the nut, then this injector is defective. Injectors are tested under pressure in the workshop.

3. Signs of a faulty injector:

a) Faulty ignition (misfire).
b) Knocking in one or more cylinders.
c) The engine overheats.
d) Loss of engine power.
e) Black exhaust smoke.
j) High fuel consumption.

Removal

4. Clean the injection channels with a cold cleaner.

5. Remove all injection channels by loosening the union nuts with a spanner, for example, HAZET 612-17x19.

Note: Do not change the bend shape of the pipes.

6. Remove the return pipes.

7. Remove the injectors with a 27 mm wrench, for example, HAZET4550.

8. Remove the axle washer, heat shield and copper gasket.

Installation

9. Insert a new sealing ring into the injection hole of the cylinder head.

10. Install the heat-protective sleeve so that its smaller diameter faces the cylinder head, i.e. downwards.

11. Place an additional copper gasket on the heat-protective sleeve.

12. Insert a new axle washer into the heat-protective sleeve. The recess should be facing upwards, the arrow points towards the cylinder head (see illustration).