SEAT Workshop Service and Repair Manuals

Removing, installing and tensioning toothed belts t  Removing → Anchor. t  Fit (set control times) → 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	Double pivot wrench -3387-, see equivalent → Anchor

t	Hose clamp -T10008-, see equivalent → Anchor

t	Torque wrench -V.A.G 1331-, see equivalent → Anchor.

t	Torque wrench -V.A.G 1332-, see equivalent → Anchor.

Removing

–  Release quick fasteners -arrows- and remove engine cover panel. –  Place the lock carrier plate into service position → Bodywork, exterior fitting work; Rep. gr.50   Note Before removing the Poly-V belt, mark the direction of rotation using chalk or a marker. If the belt runs in the opposite direction when it is refitted, this can cause breakage.

–  Loosen the V-ribbed belt by turning the tightening mechanism in the direction of the-arrow-. –  Take off poly V-belt.

–  Unscrews the screws -arrows- and the tension element of the V-ribbed belt. –  Remove upper notched belt guard.   Caution The engine must only be rotated by turning the crankshaft in the normal rotation direction (clockwise). –  Rotate crankshaft to TDC by turning bolt for toothed belt sprocket.

l  Marking on camshaft sprocket and marking on crankshaft must be aligned to TDC -arrows-.

–  Unscrew the vibration damper.

–  Remove toothed belt cover (centre and bottom) -arrows-.   Caution t  The tensioning device of the toothed belt is provided with an oil pressure damper and can only be compressed with pressure slowly and equally. t  This can be damaged if excessive force is applied when compressing the tensioning device of the notched belt.

–  Press the tensioning device of the toothed belt together using an Allen key in a clockwise direction (-in the direction of the arrow-) not using too much force, until the piston of the tensioner can be engaged with the counterhold -T10008-. –  Positioncounter holder -T10008- and leave adjoining.   Note

The protruding impact -A- of the eccentric adjuster should bit be bent. –  To slacken toothed belt, loosen nut -1- on tensioning roller and turn eccentric adjuster clockwise -arrow- using 2-hole pin wrench -3387-. –  Mark the notched belt direction of rotation with chalk or felt pen. –  Take off notched belt. Fitting (adjusting the valve timing)   Note t  Also for repair work that only involves extracting the camshaft sprocket, the toothed belt must be adjusted as described below. t  When turning camshaft, none of the crankshaft cylinders should be at TDC, Risk of damage to valves and piston heads. –  Place notched belt on crankshaft sprocket (observe direction of rotation). –  Install lower notched belt guard.   Note

Vibration damper / crankshaft pulley fitting is only possible in one position. Hole -Arrow- in vibration damper must be positioned over raised section of crankshaft toothed belt sprocket –  Fix the damper/pulley, observing the fastening point -arrow-.

–  Align the markings on the camshaft sprocket to the markings on the cylinder head and the markings on the vibration damper to the markings on the toothed belt guard -Arrows-. –  Check that the tensioner of the toothed belt is still engaged with the retaining tool -T10008-. –  Fit toothed belt onto coolant pump, then tensioning roller, and finally camshaft sprocket.

Tensioning toothed belt   Note The protruding impact -A- of the eccentric adjuster should bit be bent. –  Turn eccentric adjuster anti-clockwise onto stop in direction of -arrow- using 2-hole pin wrench -3387-. –  Keep the eccentric adjuster in this position and remove using the counterhold -T10008-.

–  Turn eccentric adjuster clockwise in direction of -arrow- until gauge -2- with dimension -a- = 8 mm (e.g. drill bit) can be pulled through between tensioning lever and housing of tensioner. –  Hold eccentric adjuster in this position and tighten nut -1- of tensioning roller to 27 Nm.   Caution The engine must only be rotated by turning the crankshaft in the normal rotation direction (clockwise).

–  Turn crankshaft two rotations via toothed belt sprocket bolt until it is positioned at TDC again. l  The marks on the camshaft sprocket and crankshaft must be at TDC -arrows-.

–  Use gauge -2- (e.g. drill bit) to check dimension -a- between tensioning lever and housing of tensioner. l  Dimension -a- = 6 ... 10 mm

If dimension -a- is not attained:   Caution t  The tensioning device of the toothed belt is provided with an oil pressure damper and can only be compressed with pressure slowly and equally. t  This can be damaged if excessive force is applied when compressing the tensioning device of the notched belt. –  Press the tensioning device of the toothed belt together using an Allen key in a clockwise direction (-in the direction of the arrow-) not using too much force, until the piston of the tensioner can be engaged with the counterhold -T10008-.

–  Loosen nut -1- for tensioning roller. –  Tension toothed belt → Anchor. If distance -A- is attained: –  Install centre upper toothed belt guard. The remaining installation steps are carried out in reverse sequence - note the following points:

–  Install Poly V-belt tension device -arrows-. –  Install poly V-belt → Chapter. –  Install top section of toothed belt cover making sure it engages securely on centre section of toothed belt cover in the process. –  Assemble the lock carrier with attachments → Bodywork - Exterior assembly work ; Rep. gr.50.

–  The torque reaction support must set itself on its rubber stop by means of its self weight, then tighten the nuts -arrows-. Tightening torque → Chapter „Assembly mountings - exploded view“ –  Fit the front bumper trim → Bodywork, exterior fitting work; Rep. gr.63. –  Check headlight adjustment → Booklet301. Tightening torques

Component	Nm
Tensioning roller to cylinder head	27
Vibration damper to toothed belt sprocket	10 + 90° → Remark → Remark
Toothed belt guard (bottom and centre section) to the cylinder block	10 → Remark
Ribbed belt tensioner to ancillaries bracket	23
Stop for torque reaction support to lock carrier	28

1)  Install using locking fluid → Parts catalogue 2)  Renew bolts 3)  90° is equivalent to a quarter turn