Removing
Remove the toothed belt.
Remove the hub and camshaft gear.
Unscrew the inside of the oil seal extractor two turns (about 3 mm) from the outside and secure with a knurled screw.
Pic. 2.320. Installing the extractor on the stuffing box
Lubricate the threaded head of the puller with engine oil, install and, pressing hard, screw it as deep as possible into the oil seal (pic. 2.320).
Loosen the knurled bolt and rotate the inside of the puller against the camshaft until the oil seal is removed.
Installation
Wipe off any remaining oil on the camshaft journal with a clean rag.
Note: The sealing lip does not need to be additionally lubricated.
Seal the groove on the camshaft cone (e.g. duct tape).
Install the oil seal on the camshaft.
Pic. 2.321. Pressing in the stuffing box
Press in the oil seal using the 10–203 tightening mandrel and the M1265 bolt until it stops (pic. 2.321).
Install the hub and camshaft gear.
Install the toothed belt and adjust the valve timing.
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