SEAT Workshop Service and Repair Manuals

Removing and installing timing chain and chain drive for oil pump t  Removing → Anchor t  Fitting → Anchor t  Tightening torques → 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	Gauge -VAS 6079-, see equivalent → Anchor

t	Extractor -T10094A-, see equivalent → Anchor

t	Adjustment tool -T10170-, please see Correspondence → Anchor

t	Adjustment tool -T10171A-, please see Correspondence → Anchor

t	counterhold -T10172-, see equivalent → Anchor

t	Hose clamp -T40011-, see equivalent → Anchor

t	Spanner -3122B-, see equivalent → Anchor

t	Hose clamp -3415-, see equivalent → Anchor

t	Hose clamp -3415/1-, see equivalent → Anchor

t	Torque wrench -VAG 1331-, see equivalent → Anchor.

Removing –  Lift the engine cover by the positions -1- and push the cover forwards in the direction of the -arrow-. –  Remove air cleaner housing → Chapter. –  Drain coolant → Chapter –  Unscrew the screw → Item and remove the air filter housing upwards.

–  Remove the coolant hose from the hose clip -arrow-. –  Unscrew the securing screws and remove the sealing cover of the camshaft -1-. –  Remove the cylinder 1 spark plug. To do so, use the extractor -T10094A- and the wrench -3122B- → Chapter.

–  Release connector -2- and pull off. –  Remove oil pressure switch -F1--1-.

–  Tighten the adjustment tool -T10170- as far as possible on the thread of the spark plug. –  Insert the gauge -VAS 6079- with the extension -T10170/1- as far as it will go and tighten it with the clamping nut -arrow-. –  Turn the crankshaft in the direction of engine rotation to TDC cylinder 1 . Observe the position of the small pointer of the gauge.

The openings -arrows- of the camshafts should be in the positions shown. Where necessary, turn the crankshaft one turn (360°).   Note t  When the crankshaft rotates more than 0.01 mm beyond the TDC, the crankshaft must be rotated by approx. 45° against the direction of the engine again. Then turn crankshaft in direction of engine rotation to TDC No. 1 cylinder. t  Permissible deviation from TDC cylinder 1: ± 0.01 mm

–  Fit the adjustment tool -T10171A- as far as possible into the openings of the camshaft. Locking pins -arrows 1- must engage in holes -arrows 2-. Inscription „TOP“-arrow 3- must be readable from above.

–  For securing the camshaft fastener -T10171A-, screw an M6 screw -arrow- in the respective hole by hand (do not tighten).   Note Note that there are different securing points for the camshaft clamp -T10171 A-. –  Remove valve timing housing → Chapter.

–  Pull cover -1- off chain sprocket for oil pump.

–  Push the tensioning rail by hand in the -direction of the arrow- and lock the piston of the chain tensioner using the retention tool -T40011-.

–  Mark direction of rotation of timing chain -3- using coloured felt tip marker pen.   Note The camshaft adjuster securing bolt -2- has a left-hand thread. –  Unscrew bolts -2- and -4- and remove camshaft adjuster -1- with timing chain -3-. To lock, use the retention tool -T10172-.

–  Lock the oil pump sprocket using the retention tool -T10172- and undo the fastening bolt -1-.

–  Use a screwdriver on bolt -2- to release tensioning spring -1- then remove tensioning spring -1-. –  Unscrew securing bolt -3- and remove chain tensioner. –  Mark direction of rotation of oil pump drive chain -2- using felt-tip marker.

–  Undo the fastening bolts of the sprocket -1- and remove the sprockets -1- and -3- together with the oil pump control chain -2-. Fitting l  The crankshaft must be positioned at TDC No. 1 cylinder.

–  Move the sprocket -1- in the -direction of the arrow - as far as possible along the crankshaft journal.   Caution Cast lug -2- on chain sprocket -1- must seat in groove -3- on crankshaft journal.

–  Mark the positions of the sprocket and the crankshaft with respect to the cylinder block using a felt-tip pen.

–  Place oil pump drive chain -3- onto drive chain sprocket -1- and position drive chain sprocket -2- onto oil pump drive shaft at same time.   Note t  Note running direction mark on oil pump drive chain. t  Oil pump drive sprocket only fits on oil pump drive shaft in one position -arrow-.

–  Lock the oil pump drive wheel using the retention tool -T10172-. –  Tighten fastening screw -1- to 20 Nm + 1/4 turns (90°).

–  Position chain tensioner on oil pump drive chain and tighten securing bolt -3- to 8 Nm. –  Lever tensioning spring -1- onto bolt -2- using a screwdriver.   Note t  Note marks -arrows-. t  The crankshaft must not rotate.

–  Tighten chain sprocket -3- hand-tight with new securing bolt. –  Place timing chain -1- on crankshaft chain sprocket -4-, exhaust camshaft chain sprocket -3-, and tighten camshaft adjuster -2- hand-tight using a new securing bolt.   Note t  Observe the mark showing the direction of rotation of the distribution chain -1-. t  Ensure guide sleeve is installed between inlet camshaft and camshaft adjuster. t  The camshaft adjuster securing bolt -2- has a left-hand thread.

The distribution chain should rest on the guide rail -1- and on the crankshaft sprocket -arrow-.

–  Fit the chain tensioner -1- and tighten the securing bolts -2- to a torque of 9 Nm. –  Tension the distribution chain by removing the retention tool -T40011- from the tensioning device. –  Check marks on crankshaft chain sprocket and cylinder block; they must align.

–  Tighten the fastening bolt -2- to a torque of 40 Nm and bolt -4- to a torque of 50 Nm (use retention tool -T10172-).   Note t  Securing bolts -2- and -4- are only tightened 90° further once timing has been checked. t  The camshaft adjuster securing bolt -2- has a left-hand thread.

–  Undo bolt -arrow- and remove the retention tool -T10171A- from the camshaft casing. –  Check distribution timing → Chapter If valve timing is OK:

–  Lock the camshaft sprockets using the retainer tool -T10172- and tighten the securing bolts -2- (left-threaded) and -4- using a spanner by 1 /4 turn. (90°).   Note t  The camshaft adjuster securing bolt -2- has a left-hand thread. t  Camshaft sprockets must not move on camshaft whilst tightening.

–  Install oil pump wheel cover -1-. –  Install timing housing → Chapter. –  Install crankshaft pulley → Chapter. –  Install poly V-belt → Chapter. –  Replace the seals of the camshaft covers and lubricate with oil before assembly. Continue installation following reverse order for removing. Tightening torques

Components:		Nm
Screw of the gear sprocket of the oil pump		20 Nm + retighten 1/4 turn (90º)
Screw of the chain tensioner and drive chain of the oil pump		15
Screw of the distribution chain tensioner		9
Middle screw of the converter		40
Screw of the camshaft gear wheels		50
	Oil pressure switch -F1-	25