SEAT Workshop Service and Repair Manuals

Fitting   Caution The studs (M6x80) must be screwed into cylinder head before installing camshaft housing. The camshaft housing is guided by the studs, so that the roller rocker fingers do not slip off the supporting elements. Prerequisite l  Pistons must not be at TDC.   Note The strainer for oil circuit must be installed in cylinder head. –  Remove sealant residues from cylinder head and camshaft housing with a rotating brush, e.g. a hand drill with a plastic brush (wear eye protection). –  Clean sealing surfaces carefully. They must be free of oil and grease. –  Also prevent dirt and residual sealant from entering cylinder head.

–  Turn inlet and exhaust camshafts until camshaft clamp -T10171 A- can be inserted into holes in camshaft to stop. –  Screw in an M6 bolt hand-tight to secure camshaft clamp -T10171 A-, but do not tighten.   Note Camshaft housings with different sealing variants in area of spark plug recess have been fitted. Sealing on cylinder head with no sealing ring in area of spark plug recess   Caution No sealant is applied in area of the oil strainer -1-.

–  Apply thin, even coat of sealant on clean camshaft housing sealing surface. See hatched area in illustration.   Note The sealant must not be applied too thickly otherwise excess sealant could enter the oil channels and cause damage to the engine. Sealing on cylinder head with sealing ring in area of spark plug recess –  Place new seals into grooves in cylinder head.   Caution No sealant is applied in area of the oil strainer -1-.

–  Apply thin, even coat of sealant on clean camshaft housing sealing surface. See hatched area in illustration. –  Do not apply sealant in area of -arrows-. Sealing on cylinder head with machined chamfer in area of spark plug recess   Caution No sealant is applied in area of the oil strainer -1-.

–  Apply thin, even coat of sealant -D 188 003 A1- on clean camshaft housing sealing surface. See hatched area in illustration. –  Apply sealant -D 176 600 A1- to the chamfer -arrows- of the cylinder head. The sealant bead must be 2 mm thick.   Note The sealant must not be applied too thickly otherwise excess sealant could enter the oil channels and cause damage to the engine.

–  Ensure that all roller rocker fingers contact valve stem ends -1- correctly and that they are clipped into their respective support elements -2-. –  Screw two studs (M6x80) into cylinder head before installing camshaft housing.

–  Carefully fit camshaft housing vertically onto studs -arrows- and dowel pins from above.   Note Be sure that no oil residue can drip onto the sealing surfaces. –  Tighten new camshaft housing securing bolts (evenly from inside to outside diagonally). Ensure that camshaft housing is not canted. Specified torque: 10 Nm + 1/4 turn (90°) further.   Note Sealant must be left dry for approx. 30 minutes after installing camshaft housing. –  Adjust valve timing → Chapter. Further assembly is basically the reverse of the dismantling sequence. In the process, note the following: t  Fit distribution casing → Chapter t  Install turbocharger → Chapter. t  Install crankshaft belt pulley → Chapter. t  Attaching fuel lines → Chapter