SEAT Workshop Service and Repair Manuals

Front sealing flange: Removing and installing t  Removing → Anchor t  Fitting → Anchor.

Special tools and workshop equipment required

t	Torque wrench -SAT 8010-

t	Counterhold -T20018B-

t	Guide bush -T20081B-

t	Silicon sealant → ETKA (electronic parts catalogue)

t	Electric drill with plastic brush

t	Flat scraper

t	Protective glasses

Removing –  Remove the Poly V-belt → Chapter.

–  To remove the upper timing belt guard, the locking element groove must be rotated -1- to the position -OPEN- on the protection. –  Lift retaining tabs -arrows- and take the upper notched belt guard off.   Note The engine should revolve around the central bolt of the crankshaft.

–  Set the engine to TDC cylinder 1. To do this, rotate the crankshaft via the centre bolt of the timing belt/crankshaft in the direction of rotation of the engine. The marking on the camshaft sprocket -arrows- and the marking on the crankshaft must lie at TDC Cyl. 1.

–  Loosen the bolt on the tension roller -arrow- and remove the timing belt from the camshaft wheel. –  Turn crankshaft back slightly.

–  Remove the crankshaft sprocket, immobilising it with the counterhold -T20018B-.

–  Extract the bolts -1 ... 10-fixing the front sealing flange. –  Lever off sealing flange. If necessary, loosen by giving light taps with a rubber hammer.   Note Lie a cloth over the open part of the oil sump. Installing –  Eliminate the sealant residue from the engine block and the oil sump, using a flat rasp.   WARNING Wear goggles.

–  Remove sealant remaining on sealing flange with rotating plastic brush (wear eye protection). –  Clean sealing surfaces. They must be free of oil and grease.   Note t  Observe use-by date of sealant. t  The sealing flange must be installed within 5 minutes of applying silicone sealant.

–  Cut off tube nozzle at upper marking (nozzle approx. approx. 3 mm).

–  Apply a thin length silicone paste -arrows- to the edge between the engine block and oil sump (on both components).

–  Clean the contact surface of the sealing flange, and apply the silcone sealant bead, as shown. t  Thickness of the sealing paste bead -arrow-: 2 ... 3 mm   Note The sealant bead must not be thicker than the specification, otherwise the excess sealant may enter the oil sump, and obstruct the filter in the oil intake pipe.

–  Apply a thin layer of silicone sealant to the lower sealant surface of the sealing flange -shaded area-. –  Slide the sealing flange carefully on the engine block centring pins.   Note Use the adapter -T20081/4- to fit sealing flange with the oil seal already installed. –  Fit the sealing flange immediately and tighten bolts in the indicated sequence:

–  Tighten bolts crossways -1 ... 6- securing the sealing flange. –  Then tighten the bolts -7 ... 10-. –  Use clean cloth to wipe off oil residue at crankshaft journal.

–  Fit the crankshaft sprocket, immobilising it with the counterhold -T20018B-. –  Tighten the new central bolt to the prescribed torque → Item.   Note t  There should be no oil on the contact surface between the notched belt sprocket and the crankshaft t  Do not oil bolt for crankshaft sprocket. –  Install toothed belt (adjust valve timing) → Chapter. –  Installing Poly-V belt → Chapter.