Fuel Injector Teflon Seal and Washer

Fuel Injector Teflon Seal and Washer

Special tools, testers and auxiliary items required

• Tool Set (T10133)

Removing

Teflon Seal, Replacing

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

- Clean the fuel injector.

- Carefully cut the seal using a knife. When doing so, do not let the knife blade come in contact with the injector body.

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





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





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





- Place the (T10133/5) with the seal onto the fuel injector. Slide the seal using the (T10133/6) farther onto the fuel injector.

Seal no longer sits in its groove.





- Remove the (T10133/6) and the (T10133/5)

- Slide the seal by hand into the groove.

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

- Press the (T10133/7) over the seal to the stop on the (T10133/11).

- Remove the (T10133/7).





- Press the (T10133/8) over the seal to the stop on the (T10133/11).

- Remove the (T10133/8).

The Teflon seal now has the correct installed dimension.





Support Washer, Replacing

- Remove the O-ring - 3 -.

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

- Remove the spring element - 1 - from the fuel injector and slide off using (T10133/12).





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

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





- Rotate the (T10133/14) (knurled side no longer faces toward fuel injector). Slide the (T10133/14) over the support washer - 1 - in the - direction of the arrow - to the stop on the (T10133/12).

- Remove the (T10133/14).

Support washer is now the correct size.





- Install a new spring element - 1 - using the (T10133/12) and place a new O-ring - 3 - in front of the support washer - 2 -.





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





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

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

• Install the lower intake manifold. Refer to => [ Lower Intake Manifold with Fuel Rail ] Lower Intake Manifold with Fuel Rail.