Renewing the PTFE sealing ring

Before replacing PTFE sealing ring (1), make sure hands and work surface are clean and free of oil.

Avoid mechanical contact with injector tip (2).

Fig 1: Identifying PTFE Sealing Ring And Injector Tip

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Remove PTFE sealing ring (1) with special tool 13 0 191 from injector (2).

Use a fluff-free cloth only to remove combustion residues from cylindrical part of injector tip (do not use ultrasound or other tools/agents).

Do not clean injector tip.

Fig 2: Removing PTFE Sealing Ring From Injector Using Special Tool (13 0 191)

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Slide new PTFE sealing ring (1) onto mounting taper 13 0 195.

Fig 3: Identifying PTFE Sealing Ring Onto Mounting Taper 13 0 195

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User fingers and mounting taper 13 0 195 to slide PTFE sealing ring (1) onto injector (2).

NOTE:

Do not use fingernails to slide PTFE sealing ring on.
Do not use any lubricating agents.
The sealing ring is expanded when slid on.

Fig 4: Sliding PTFE Sealing Ring Onto Injector Using Fingers And Mounting Taper (13 0 195)
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To bring the expanded PTFE sealing ring to its installation dimension, slide three assembly sleeves with decreasing diameters onto the injector.

Slide assembly sleeve (1) with large opening first onto injector (1).

Do not use any lubricating agents.

Fig 5: Sliding Mounting Sleeve Onto Injector

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First slide assembly sleeve 13 0 192 (large diameter) onto injector (1).

Then slide assembly sleeve 13 0 193 (medium diameter) onto injector (1).

Fig 6: Sliding Assembly Sleeve 13 0 192 (Medium Diameter) Onto Injector

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Finally, press injector (1) into assembly sleeve 13 0 194 (small diameter).

Installation note:

Install injector within 10 minutes or slide on protective cap (graphic 13 14 05) (PTFE sealing ring swells up).

Fig 7: Identifying Injector Into Assembly Sleeve 13 0 194 (Small Diameter)

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