A6 Quattro Sedan V8-4.2L (ART) (2000)
Camshaft Oil Seal: Service and Repair
Camshaft oil seals, removing and installing
Special tools and equipment
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Special tool 3240
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Installation tool 3241
Removing
Note: If one oil seal is leaking, replace seals on both sides.
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Remove toothed belt from camshaft sprockets, Refer to Engine; Service and Repair.
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Align inner part of 3240 with outer part and secure with set screw.
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Lubricate threaded part of 3240 with oil, apply to seal and with pressure screw into seal as far as possible.
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Release set screw and turn inner part against camshaft until seal is extracted.
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Place extractor in vice (at flat surfaces) and remove seal with pliers.
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Clean sealing surface on camshaft.
Installing
Note: Do not lubricate sealing lip and outside seal ring.