SEAT Workshop Service and Repair Manuals

Front sealing flange: Removing and installing t  Removing → Anchor t  Fitting → Anchor t  Tightening torques → Anchor Check the tool and equipment equivalence table according to the applicability between Seat / VW / Audi / Skoda → Chapter

Special tools and workshop equipment required

t	Hose clamp -3415-, see equivalent → Anchor

t	Guide sleeve -T10053-, see equivalent → Anchor

t	Tightening torque -VAG 1331-, see equivalent → Anchor

t	Tightening torque -VAG 1332-, see equivalent → Anchor

No figure: Oil extraction unit -VAG 1782- Silicon sealant: -D 176 404 A- Electric drill with plastic brush attachment Flat scraper Protective eyewear

Removing –  Detach the outer -1- and inner -2- engine covers, by pulling them evenly upwards. –  Remove poly V-belt → Chapter. –  Remove toothed belt → Chapter.

–  Install crankshaft toothed belt sprocket. Immobilise the notched belt sprocket using the counterhold -3415-. –  Drain engine oil → Chapter. –  Remove sump → Chapter.

–  Bolts -1 ... 6-fixing the front sealing flange. –  Lever off sealing flange. If necessary, loosen by giving light taps with a rubber hammer. –  Eliminate sealant residue from cylinder block, using a flat rasp.   WARNING Use protective goggles.

–  Remove sealant remaining on sealing flange with rotating plastic brush (wear eye protection). –  Clean seal surfaces. They must be free of oil and grease. Installing:   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 the silicone-based sealant to the clean contact surface of the oil sump, proceeding as shown. t  Thickness of sealant bead -arrows-: 2 ... 3 mm.   Note The sealant bead must not be thicker. Otherwise the excess sealant may enter the oil sump, and obstruct the strainer in the oil intake pipe.

–  Clean the contact surface of the sealing flange, and apply the silicone sealant bead, as shown.   Note Once the seal is installed, use the sleeve -T10053/1- to position the sealing flange.

–  Fit the sealing flange immediately and gently tighten all bolts 1 ... 6. –  Tighten diagonally the attachment bolts of the seal flange. → Anchor –  Use clean cloth to wipe off oil residue at crankshaft journal. –  Install crankshaft sprocket. –  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 wheel and the crankshaft t  Do not oil bolt for notched belt crankshaft pulley. –  Fit the oil sump → Chapter. –  Install notched belt (adjusting valve timing) → Chapter. –  Installing Poly-V belt → Chapter.   Note After installing the oil sump, the sealant must dry for approx. 30 minutes. Only then should the engine be refilled with oil. Tightening torques

Component		Nm
Sealing flange to cylinder block		15
Crankshaft toothed belt wheel		120 + 90° 1)2)

1) Renew bolt 2) 90° respective (1/4 turn)