SEAT Workshop Service and Repair Manuals

Removing and installing camshaft t  Removing → Anchor t  Installing → 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	Torque wrench kit -SAT 8010-, see equivalent → Anchor

t	Hose clamp -T10051-, see equivalent → Anchor

t	Extractor -T10052A-, see equivalent → Anchor

t	Silicone sealant → Spare parts catalogue

Removing –  Remove poly V-belt → Chapter. –  Remove toothed belt → Chapter.

–  Extract the bolts -1- of the camshaft wheel. –  Remove the camshaft wheel from the hub.

–  Loosen the securing bolt -1- of the hub, use the counterhold -T10051- . –  Loosen by 2 turns the attachment bolt of the hub.

–  Fit the extraction tool -T10052A- and line up with the openings of the hub and screw down the bolts -1- . –  Hold the hexagonal (e/c 30) of the extraction tool -T10052A- and tighten the bolt -2- evenly until the hub comes away from the camshaft cone. –  Take camshaft hub off. –  Remove cylinder head cover → Chapter. Remove rocker shaft.   Note First loosen both the outer and then the inner securing bolts respectively. –  Removing the tandem pump → Chapter. –  Unscrew the bearing caps -2- and -3- first. Loosen, alternating crossways, the bearing caps -1- and -4- .   Note The bearing cap -4- is identified as bearing cap -5-. –  Extract the camshaft. Installing Continue the installation in the reverse order of removal sequence, observing the following:   Note

t  When fitting the camshaft, the cams for cylinder 1 should face upwards. t  Do not interchange used bearing shells (mark). t  When fitting the camshaft, ensure that the half-bearing retaining lugs on the bearing cabs and the cylinder head are correctly seated. t  Before fitting the bearing cap, ensure that the washers for the cylinder head bolts are fitted on the cylinder head. –  Lubricate the friction surfaces of the half bearings. –  Fit the bearing caps -2- and -3- then tighten the new bolts crossways to the torque: 8 Nm + 90° (1/4) turn. –  Fit the bearing caps -1- and -4- then tighten the new bolts crossways to the torque: 8 Nm + 90° (1/4) turn.   Note t  The bearing cap -4- is identified as bearing cap -5-. t  Seal contact surfaces of bearing caps -1 -and -4 - → Parts Catalogue → Fig.

t  The bearing cap -4-, should be flush -arrows- with the exterior edge of the cylinder head -2-, if not, leaking may occur in the tandem pump. –  Fit the seal for the camshaft → Chapter. –  Fit the rocker arm shaft and first, tighten both the inside and then the outside fixing screws equally crosswise so that there is no play on the bearing unit. Tighten the bolts to the torque 20 Nm + 90° (1/4 turn). –  Fit the camshaft hub.

–  Tighten hub securing nut -1- to 100 Nm. –  Use counter-hold tool -T10051- to do this.

–  Move the camshaft wheel onto the hub.   Note The cogged part -arrow- of the camshaft cogwheel should face upwards. –  Align the camshaft wheel to the centre position in the stripped holes. –  Fit the bolts -1- by hand so there is no play up to the camshaft wheel. –  Immobilise the hub using the retention tool -T20102-. –  Install toothed belt → Chapter. –  Fit the tandem pump → Chapter.   Note Engine is not to be started for approx. 30 minutes after installing new tappets. The hydraulic elements should be allowed to sit in place (if not, the valves may press on the cylinder).