SEAT Workshop Service and Repair Manuals

Removing and installing sealing flange - pulley end t  Sealing flange on the pulley side: Removing → Anchor t  Sealing flange on the pulley side: Fitting → Anchor t  Sealing flange on the pulley side: Tightening torque → Anchor Consult the equivalence table for tools and equipment according to applicability among Seat / VW / Audi / Skoda → Chapter.

Special tools and workshop equipment required

t	Hose clamp -3415-, see equivalent → Anchor

t	Mounting tool -T10053-, see equivalent → Anchor

t	Torque wrench (5 - 50 Nm) -V.A.G 1331-, see equivalent → Anchor

t	Torque wrench (40 - 200 Nm) -V.A.G 1332-, see equivalent → Anchor

t	Electric drill with plastic brush attachment

t	Flat scraper

t	Silicone sealant → Spare parts catalogue

Removing l  Engine installed. –  Take off toothed belt. → Chapter –  Turn crankshaft back slightly.

–  Remove gear wheel from the camshaft. For this purpose, lock using the retention tool -3415-. –  Drain the engine oil. –  Remove sump → Chapter. –  Pull off front sealing flange. –  Remove sealing flange. If necessary, loosen by giving light taps with a rubber hammer. –  Drive out seal with flange removed.   Note Lie a cloth over the open part of the oil sump. –  Remove the sealant residue from the engine block and the oil sump, using a flat rasp.   WARNING Wear eye protection.

–  Remove sealant residue on sealing flange using rotating plastic brush or similar. –  Clean sealing surfaces; they must be free of oil and grease. Installing   Note t  Note the use-by date of the sealant. t  The sealing flange must be installed within 5 minutes of applying the silicone sealant.

–  Cut off tube nozzle at upper marking (nozzle Ø: approx. 3 mm).   Note t  The sealant bead must be no thicker than 2…3 mm. Excess sealant can find its way into the sump and block the strainer in the suction line or drip on the sealing surface of the crankshaft seal. t  Before applying sealant bead, cover sealing surface of oil seal with a clean cloth.

–  Apply the silicone sealant bead -arrow- to the clean sealing surface of the sealing flange, see figure. –  Install sealing flange immediately and tighten all bolts lightly.   Note When fitting sealing flange with oil seal installed use guide sleeve -T10053/1-. –  Tighten securing bolts for sealing flange to 15 Nm using alternate and diagonal sequence. –  Install crankshaft sprocket. l  There should be no oil on the contact surface between the gear wheel and the crankshaft. l  Do not oil crankshaft sprocket bolt.

–  Immobilise the gear wheel using the counterhold tool -3415-. –  Tighten the new screw to 120 Nm + 1/4 turns (90°) using a spanner. Turning further can be done in several stages. The remaining installation steps are carried out in reverse sequence - note the following points: –  Install sump → Chapter.   Note After fitting, allow sealant to dry for approx. 30 minutes. Only then should the engine be refilled with oil. –  Install toothed belt (adjust valve timing) → Chapter. Tightening torque

Component		Nm
Sealing flange to cylinder block		15