Audi Workshop Service and Repair Manuals

Renewing crankshaft oil seal - pulley end

Special tools and workshop equipment required

t	Oil seal extractor -3203-

t	Counterhold tool -3415-

t	Assembly tool -T10053-

t	Torque wrench -V.A.G 1331-

t	Torque wrench -V.A.G 1332-

Removing –  Remove poly V-belt → Chapter. –  Remove toothed belt → Chapter.

–  Remove crankshaft toothed belt sprocket. To do this, counter-hold sprocket with special tool -3415-.

–  Unscrew central bolt -1- for crankshaft toothed belt sprocket -2- and remove sprocket. –  Remove diamond-coated washer -3- from toothed belt sprocket. –  To guide oil seal extractor, screw central bolt into crankshaft onto stop by hand. –  Unscrew inner part of oil seal extractor -3203- nine turns (approx. 20 mm) from the outer part and lock in position with the knurled screw.

–  Lubricate threaded head of oil seal extractor -3203-, place it in position and, exerting firm pressure, screw it into oil seal as far as possible. –  Loosen knurled screw and turn inner part against crankshaft until oil seal is pulled out. –  Clamp flats of oil seal extractor in vice. Remove oil seal with pliers. Installing l  Tightening torques → Chapter –  Clean contact surface and sealing surface. –  Remove oil residue from crankshaft journal with a clean cloth.

–  Position guide sleeve T10053/1 from assembly tool -T10053- on crankshaft journal. –  Push oil seal over guide sleeve onto crankshaft journal.

–  Press in oil seal with central bolt of toothed belt sprocket and thrust sleeve of assembly tool -T10053- until flush.

–  Install crankshaft toothed belt sprocket -2- with new diamond-coated washer -3- and new central bolt -1-.   Note t  Contact surfaces between toothed belt sprocket, diamond-coated washer and crankshaft must be free of oil. t  Do not lubricate bolt for crankshaft sprocket.

–  Use counterhold tool -3415- to tighten crankshaft toothed belt sprocket. –  Install toothed belt → Chapter. –  Install poly V-belt → Chapter.