Audi Workshop Service and Repair Manuals

Removing and installing sealing flange (pulley end) Special tools and workshop equipment required

t  Counterhold tool -3415- t  Electric drill with plastic brush attachment t  Safety goggles t  Sealant → Electronic parts catalogue

Removing –  Remove toothed belt → Chapter. –  Loosen bolt for crankshaft sprocket using counterhold tool -3415-. –  Remove bolt and detach crankshaft sprocket.

–  Remove bolts -1 ... 10- and carefully release sealing flange from bonded joint. –  Drive out oil seal with sealing flange removed. Installing Installation is carried out in the reverse order; note the following: l  Tightening torques → Chapter „Sealing flange (pulley end) - exploded view“   Caution Make sure sealant residue does not enter lubrication system. Place a clean cloth over the exposed section of the sump. –  Carefully remove sealant residue on cylinder block and sump.

WARNING Protect eyes against injuries. Wear safety goggles. –  Use e.g. rotating plastic brush to remove sealant residue on sealing flange. –  Clean 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. 2 mm).

–  Apply a thin bead of sealant at the edge of the joint between the cylinder block and the sump -arrows-.

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 clean sealing surface of sealing flange as shown in illustration. l  Thickness of sealant bead: 2 ... 3 mm

–  Apply a thin coat of sealant to bottom sealing surface -shaded- on sealing flange.   Note The sealing flange must be installed within 5 minutes after applying the sealant. –  Carefully fit sealing flange onto dowel pins in cylinder block.

–  Tighten sealing flange bolts → Fig.. –  Install crankshaft oil seal (pulley end) → Chapter.