Audi Workshop Service and Repair Manuals

Renewing sealing flange (pulley end) with crankshaft oil seal Special tools and workshop equipment required

t  Pin wrench -3212-

t  Assembly tool -T40048- t  Electric drill with plastic brush attachment t  Safety goggles t  Sealant → Electronic parts catalogue

Procedure –  Pull off front part of engine cover panel -bottom arrows-. –  Remove vibration damper with poly V-belt pulley → Chapter.

–  Remove bolts for coolant pump pulley (counterhold with pin wrench -3212-).

–  Remove bolts -arrows- and detach sealing flange (pulley end).   Note Renew sealing flange (pulley end).

Caution Protect lubrication system against contamination. Cover exposed parts of the engine.   WARNING Protect eyes against injuries. Wear safety goggles. –  Remove sealant residue from cylinder block and sump (top section) using rotating plastic brush or similar. –  Clean sealing surfaces; they must be free of oil and grease.   Note

Note the use-by date of the sealant. –  Cut off nozzle of tube at front marking (nozzle Ø approx. 1.5 mm).

Caution Make sure lubrication system is not clogged by excess sealant. The bead of sealant must not be thicker than specified. –  Apply bead of sealant -arrow- onto sealing surface of new sealing flange (pulley end) as shown in illustration. l  The groove on the sealing surface must be completely filled with sealant. l  The bead of sealant must project 1.5 … 2.0 mm above the sealing surface.   Note The sealing flange (pulley end) must be installed within 5 minutes after applying the sealant.

–  Fit assembly aid -T40048/1- onto assembly sleeve -T40048/2- and slide sealing flange -1- onto assembly sleeve. –  Detach assembly aid.

–  First position sealing flange (with assembly sleeve -T40048/2- inserted) on crankshaft. –  Keep sealing flange straight while pushing it onto engine sealing surface. Then bolt on → Fig.. Remaining installation steps are carried out in reverse sequence; note the following: –  Install poly V-belt pulley for coolant pump → Chapter. –  Install vibration damper with poly V-belt pulley → Chapter.