SEAT Workshop Service and Repair Manuals

Checking distribution timing

Special tools and workshop equipment required

t	Spark plug socket and extension -3122 B-

t	Torque wrench (5…50 Nm) -V.A.G 1331-

t	Dial gauge -VAS 6079-

t	Extractor -T10094 A-

t	Dial gauge adapter -T10170- or dial gauge adapter -T10170 A-

t	Camshaft clamp -T10171 A-

Checking sequence –  Unplug connector -1-. –  Remove bolts -arrows-. l  Gas hoses remain connected to gas rail. –  Release the wiring from the fixing of the carrier cover and from the gas hoses. –  Place the gas distribution rail „Gas rail“ aside without removing the cables and hoses.

–  Remove bolts -arrows- and lift the carrier cover upwards and away. –  Removing air intake hose from air filter → Chapter. –  Remove the cylinder 1 spark plug. To do so, use the extractor -T10094 A- and the spark plug spanner -3122 B-.

–  Screw dial gauge adapter -T10170- into spark plug hole to stop. –  Insert the dial gauge -VAS 6079- with extension -T10170/1- as far as the stop and secure using locking nut -arrow-. –  Turn crankshaft in engine direction of rotation to TDC for No. 1 cylinder: Note the position of the small dial gauge. –  Remove sealing cover from camshaft housing → Chapter.

The openings -arrows- of the camshafts should be in the positions shown. Turn crankshaft one turn (360°) if necessary.   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 for cylinder 1:  ±  0.01 mm.

–  Insert camshaft clamp -T10171 A- as far as stop in camshaft openings. Locking pins -arrows 1- must engage in holes -arrows 2-. Inscription „TOP“-arrow 3- must be readable from above. If camshaft clamp -T10171 A- cannot be inserted into camshaft openings to stop, then timing is incorrect and must be readjusted → Chapter. Timing is OK if camshaft clamp -T10171 A- can be fitted into camshaft openings to stop. Further assembly is basically the reverse of the dismantling sequence. Note the following: t  Renew seals for camshaft sealing caps and lubricate with oil before installing.

–  Install the carrier cover and tighten the screws -arrows- to a tightening torque of 8.5 Nm. –  Mount the cables and gas hoses on to the fixing points of the carrier cover.

–  Install the fuel rail „Gas rail“ and tighten the screws -arrows- to a tightening torque of 4 ± 0.4 Nm. –  Insert the connector -1-.