2. Drill two small opposite holes in the seal to be replaced. Screw a screw into each of them and, pulling them with pliers, remove the seal. Do not drill through the seal housing or the camshaft seal! Using an alternative method, unscrew the flange mounting bolts, remove the inner sealing ring from the groove and press out the seal.
3. Clean the seal housing with a lint-free cloth. Remove any burrs that could prematurely damage the seal.
4. Lubricate the oil seal with clean engine oil and place it on the shaft with the working edges inward, pushing it to the housing. To prevent damage to the oil seal by the sharp edges of the shaft, wrap them with adhesive tape (fig. 8.15).
5. Using a hammer and a suitable cylindrical mandrel, press the seal evenly into the housing.
Note: For the mandrel, select a head that rests only on the outer hard edges of the seal.
6. If the flange was removed, replace the sealing ring, install the flange and tighten the flange mounting bolts to the specified torque.
7. Install the auxiliary shaft sprocket as described paragraph 5.
(The original text of the material can be found on the website: «AudiManual.ru»)