Seals and Gaskets: Service and Repair

Removing and installing sealing ring for crankshaft belt pulley

Tools





Preliminary work

1. Remove crankshaft belt pulley.

Tools and materials

Tools Overview:

Removing sealing ring for crankshaft belt pulley

Extraction Tool:

1. Screw extraction tool apart and position on the crankshaft stub. Then tighten the fastening screw -A-.

Pulling Extraction Tool Into Sealing Ring:

2. Push on change-over ratchet. Press the tool firmly against the sealing ring while turning it in a clockwise direction until the extraction tool is pulled into the sealing ring.

Pulling Out Sealing Ring:

3. Undo the screw -A- and turn the change-over ratchet in a clockwise direction -B- until the sealing ring falls out.

Installing sealing ring for crankshaft belt pulley


ATTENTION: Damage to the sealing ring!
^ Loss of engine oil.
--> Never deform or touch the sealing lips.
--> Only install dry sealing ring.

1. Clean crankshaft and installation location and remove all traces of oil. Clean off patches of dirt or rust using a special polishing pad (e.g. Never Dull).

Guide Sleeve:

2. Position guide sleeve on the crankshaft stub.

Sealing Ring On Guide Sleeve:

3. Place sealing ring on the guide sleeve.

Sealing Ring On Crankshaft Stub:

4. Push sealing ring down from the guide sleeve on to the crankshaft stub.





5. Position insertion tool and screw in using the old belt pulley fastening screw. Screw insertion tool in until it is supported on the lid. Then screw out the screw anti-clockwise.
6. Do not re-use the old belt pulley fastening screw.

Subsequent work

Crankshaft Belt Pulley:

1. Install crankshaft belt pulley.