Fuel Injector Teflon(R) Seal and Washer

Fuel Injector Teflon(R) Seal and Washer

• The long fuel injectors for cylinders 1, 3 and 5 must not be separated.

Special tools, testers and auxiliary items required

• Tool Set (T10133)

Teflon(R) Seal, Replacing

- Remove the upper intake manifold. Refer to => [ Upper Intake Manifold ] Upper Intake Manifold.

- Remove the fuel injectors. Refer to => [ Fuel Injectors ] Fuel Injectors.

- Clean the fuel injector.

- Cut the seal - arrow - off using a knife. When doing so, do not allow the knife blade to come into contact with the injector body.

- Remove the seal and clean the groove for the seal - arrow - area. Remove any deposits (coking) using a brass wire brush.






- Place a new seal - 1 - onto the assembly cone (T10133/5). Slide the seal with the assembly sleeve (T10133/6) (knurl faces toward the seal - 1 -) lightly onto the assembly cone (T10133/5) as far as it will go.






- Rotate the assembly sleeve (T10133/6) (knurl no longer faces toward the seal) and slide the seal - 1 - to the end of the assembly cone (T10133/5).






- Now, place the assembly cone (T10133/5) with the seal onto the fuel injector. Slide the seal with the assembly sleeve (T10133/6) farther onto the fuel injector.

The seal no longer sits in its groove.






- Remove the assembly sleeve (T10133/6) and the assembly cone (T10133/5).

- Slide the seal by hand into the groove.

- Place the spacer sleeve (T10133/11) on the injector body.

- Now, press the sizing sleeve (T10133/7) over the seal to the stop on the spacer sleeve (T10133/11).

- Remove the sizing sleeve (T10133/7).






- Now, press the sizing sleeve (T10133/8) over the seal to the stop on the spacer sleeve (T10133/11).

- Remove the sizing sleeve (T10133/8).

The Teflon(R) seal now has the correct installed dimension.






Washer, Replacing

- Remove the O-ring - 3 -.






- Cut the washer - 2 - with a small edge knife and remove it.

- Remove the spring - 1 - from the fuel injector and slide on the locking plate (T10133/12).






- Place a new washer - 1 - on the assembly cone (T10133/13) and place this as shown on the fuel injector.

- Slide the washer - 1 - with the sizing sleeve (T10133/14) (knurled side faces toward the fuel injector) up to the first groove - arrow - on the fuel injector.

- Now, rotate the sizing sleeve (T10133/14) (knurled side no longer faces toward the fuel injector). Slide the sizing sleeve over the support washer - 1 - in the - direction of the arrow - to the stop on the locking plate (T10133/12).

- Remove the sizing sleeve (T10133/14).

The support washer is now the correct size.






- Now, install a new spring - 1 - for the locking plate (T10133/12) and place a new O-ring - 3 - in front of the support washer - 2 -.






• The Teflon(R) seal - arrow - must not be oiled for installing fuel injector.






- Install the fuel injectors.

• The seal (- item 13 - in the => [ Fuel Rail, Injectors and High Pressure Pump Overview ] Fuel Rail, Injectors and High Pressure Pump Overview) must also be replaced for the fuel injectors for cylinders 1, 3 and 5.