Fuel Injectors

Fuel Injectors

Special tools, testers and auxiliary items required

• Tool set (T10133)

• The (T10133/2) was changed. It is now called the (T10133/2A). If the new tool is not available, the old one can be modified.

(T10133/2) has been changed to (T10133/2A).

Procedure

- File the semicircle using a round file (approximately 6 mm) as shown in the illustration.





• The semicircle allows the (T10133/2) to slide farther onto the fuel injector, thus providing the (T10133/2) with a larger contact surface.

- Mark the modified (T10133/2) with an "A " at the end of the tool number.

Removing

• Fuel injector individual parts. Refer to --> [ Fuel Injector Individual Parts ] Fuel Rail Assembly Overview.

- Remove the intake manifold with the fuel rail. Refer to --> [ Intake Manifold with Fuel Rail ] Intake Manifold With Fuel Rail.

- Cover the intake ports with clean cloths.

• If the fuel injectors remain stuck in the fuel rail, carefully pull them out.

- Remove the support element - A - downward and disconnect the connector - arrows - from the fuel injectors.





- Position the (T10133/2A) in the groove on the fuel injector.





- Mount the (T10133/16), turn the screw - 1 - and remove the fuel injector.

• Pay attention to the intermediate rings.

• If new fuel injectors are not going to be installed, then clean the old injectors before installing. Refer to --> [ Fuel Injectors, Cleaning ] Procedures.

• The combustion chamber seal (Teflon seal) must always be replaced before reinstalling the fuel injectors. Refer to --> [ Fuel Injector Combustion Chamber Teflon Seal ] Fuel Injector Combustion Chamber Teflon Seal.

Installing

• Combustion chamber sealing ring (Teflon sealing ring) for the fuel injector must not be oiled or greased.

• It is possible an opened intake valve may hinder the cleaning of bores in cylinder head. In this case, engine must be turned further by hand using a wrench on the crankshaft.

- Thoroughly clean the bores for the fuel injectors in the cylinder head using the (T10133/4).





- Replace the fuel injector combustion chamber seal (Teflon seal) - 1 -. Refer to --> [ Fuel Injector Combustion Chamber Teflon Seal ] Fuel Injector Combustion Chamber Teflon Seal.





- Replace the fuel injector O-ring - 5 - and support ring - 4 -.

- Install the fuel injector with the intermediate ring - 2 - again.

• Do not apply any grease or other lubricant to the combustion chamber seal (Teflon seal) - 1 - before installing.

• Lightly lubricate the O-ring - 5 - with clean engine oil when installing.

- Use the (T10133/2A) - 2 - in order to push the fuel injector all the way into the hole in the cylinder head.





- Make sure the fuel injectors are positioned correctly in the cylinder head - arrow -.





- Install the intake manifold with the fuel rail. Refer to --> [ Intake Manifold with Fuel Rail ] Intake Manifold With Fuel Rail.