Teflon(R) Combustion Chamber Seal

Teflon(R) Combustion Chamber Seal

Special tools, testers and auxiliary items required

• Puller (T10133/2A)

• Hammer (T10133/3)

• Nylon Brush (T10133/4)

• Assembly Cone (T10133/5)

• Assembly Sleeve (T10133/6)

• Calibration Sleeve (T10133/7)

• Calibration Sleeve (T10133/8)

• Spacer Sleeve (T10133/11)

• Always replace the combustion chamber seal before installing a fuel injector.

- Carefully remove the old Teflon(R) seal with the appropriate tool (for example cut the seal open with a razor blade, spread it outward with a small screwdriver and remove it forward). When doing this, make sure not to damage the groove and circumferential rib in the groove base.

• If the groove is damage, the fuel injector must be replaced.

- Before installing the new Teflon(R) seal, the seal groove and the shaft of the fuel injector must be cleaned of combustion residue using a clean rag.

• A fuel injector with "angled connector" is shown in the illustration. Do not pay attention to this for the remainder of the procedure, because it is unrelated to replacement of the combustion chamber seal.

- Place the (T10133/5) with the new Teflon(R) seal - 1 - onto the fuel injector - 2 -.






- Using the (T10133/6) , push the Teflon(R) seal further onto the (T10133/5) until the Teflon(R) seal is engaged in the seal groove. When doing this, do not use any lubricants.






• By pushing the Teflon(R) seal onto the fuel injector, the Teflon(R) seal is expanded. For this reason, the Teflon(R) seal must be contracted again, once it has been pushed on. This is done in two steps. The procedure for this is as follows.

The 1st step of calibrating (adapting) the Teflon(R) seal is performed using the (T10133/7).

- Place (T10133/11) on valve body.

- Using a rotating motion (approximately 180°) and light pressure, push the (T10133/7) all the way over the Teflon(R) ring onto the (T10133/11).

- Turn the (T10133/7) in the opposite direction.






The 2nd step of calibrating (adapting) the Teflon(R) seal is performed using the (T10133/8).

- Using a rotating motion (approximately 180°) and light pressure, push the (T10133/8) all the way over the Teflon(R) ring onto the (T10133/11).

- Turn the (T10133/8) in the opposite direction.






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

- The Teflon(R) seal must not be oiled.

- Replace the O-ring on the fuel injector. Coat the O-ring with clean engine oil before installing it.

- Using the included (T10133/4) , thoroughly clean the high-pressure fuel injector bores in the cylinder head before installing the fuel injectors.






• The Teflon(R) sealing ring of the fuel injector may not be oiled or greased.

• When installing the injector valve, make sure there is no cleaning product or oil in the holes in the cylinder head.

- Press the fuel injector by hand into the bore in the cylinder head (free of oil and grease) until it stops. Make sure fuel injectors are positioned correctly in cylinder head.

• The fuel injector must not be difficult to install. If necessary, wait as the combustion chamber seal continues to pull itself together.

• Check fuel injectors for correct seating and installation position in cylinder head.

• If it is difficult to install the fuel injector by hand use the (T10133/2A) - 2 - with the (T10133/3).






- Further installation is in the reverse sequence to removal.

Important: Always perform the following:

• Coat the O-rings for the high pressure fuel injectors with clean engine oil so they are easier to guide into the fuel rail.

• Replace all seals.

• The fuel rail should be placed on the fuel injectors and pressed on evenly.

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