SEAT Workshop Service and Repair Manuals

Pressing in sealing flange with sender wheel   Note t  The sealing flange with a PTFE seal is equipped with a sealing lip support ring. This support ring serves as a fitting sleeve and must not be removed prior to installation. t  Sealing flange and sender wheel must not be separated or turned after removal from packaging. t  The sender wheel is held in its installation position on the assembly device -T10134- by a locating pin. t  Sealing flange and oil seal form one unit and must only be renewed together with the sender wheel. t  The assembly device -T10134- is held in its position relative to the crankshaft by a guide pin inserted into a hole in the crankshaft.

Assembly tool -T10134- A -  Clamping surface B -  Hexagon nut C -  Assembly housing D -  Locating pin E -  Hexagon socket head bolt F -  Guide pin for diesel engines (black knob) G -  Guide pin for petrol engines (red knob)

1.) Mount seal with sender wheel on assembly tool -T10134- –  Screw in hexagon nut -B- to just before clamping surface -A- of threaded spindle.

–  Clamp assembly device -T10134- in a vice on clamping surface -A- of threaded spindle. –  Press assembly housing -C- downwards until it lies on hexagon nut -B--arrow-. –  Screw hexagon nut onto threaded spindle until inner part of assembly device and assembly housing are at same height.

–  Remove securing clip -arrow- from new sealing flange.   Note The sender wheel must not be taken out of the sealing flange or twisted.

–  Locating hole -A- on sender wheel -C- must align with marking -B- on sealing flange. –  Place sealing flange with front side downwards on a clean flat surface.

–  Push sealing lip support ring -A- downwards in direction of arrow until it lies on flat surface.

–  Upper edge of sender wheel and front edge of sealing flange must align -arrows-.

–  Place sealing flange with front side on assembly tool -T10134- so that locating pin -B- can be inserted in sender wheel hole -A-.   Note Ensure sealing flange lies flat on assembly tool.

–  Push sealing flange and support ring for sealing lip -B- against surface of assembly tool -T10134- whilst tightening the 3 knurled screws -A- so that locating pin cannot slide out of sender wheel hole.   Note When installing sealing flange, ensure that sender wheel remains fixed in assembly device. 2.) Mount assembly tool -T10134- with sealing flange on crankshaft flange l  Crankshaft flange must be free of oil and grease. l  Engine positioned at TDC, cylinder 1.

–  Screw hexagon nuts -B- to end of threaded spindle. –  Press threaded spindle of assembly tool -T10134- in direction of arrow, until hexagon nut -B- lies against assembly housing -A-. –  Align flat side of assembly housing to crankcase's sealing surface on the oil sump side.

–  Secure assembly tool -T10134- to crankshaft flange using hexagon socket head bolts -A-.   Note Screw the Allen screws -A- by approx. 5 threads into the crankshaft flange.

–  To guide sealing flange in cylinder block, screw in 2 M7 × 35 mm bolts -A-. 3.) Bolt assembly tool -T10134- onto crankshaft flange.

–  Push assembly housing -C- by hand in direction of arrow until sealing lip support ring -B- touches crankshaft flange -A-. –  Push guide pin for diesel engines (black knob) -D- into hole in crankshaft. This ensures that the sender wheel reaches its final installation position.   Note The guide pin for petrol engines (red knob) -F- must not be inserted in threaded hole of crankshaft. –  Hand-tighten both hexagon socket head bolts of assembly tool. –  Screw hexagon nut -E- onto threaded spindle by hand until it lies on assembly housing -C-. 4.) Press sender wheel onto crankshaft flange using assembly tool -T10134-

–  Tighten hexagon nut of assembly tool -T10134- to 35 Nm using torque wrench -V.A.G 1331- and tool insert, 24 mm -V.A.G 1332/11-.   Note After hexagon nut is tightened to 35 Nm, a small air gap must still be present between cylinder block and sealing flange. 5) Check sender wheel installation position on crankshaft

–  Screw hexagon nut -E- to end of threaded spindle. –  Remove the two bolts -A- from cylinder block. –  Unscrew the three knurled screws -B- out of sealing flange.

–  Unscrew Allen head bolts -A- and remove assembly tool -T10134-. –  Remove sealing lip support ring.

–  The sender wheel is in the correct installation position on the crankshaft if a gap -a- = 0.5 mm exists between crankshaft flange -A- and sender wheel -B-.

–  Set vernier gauge on crankshaft flange. –  Measure the distance -a- between the crankshaft flange and the sender wheel. If distance -a- is too small: –  Re-press sender wheel → Anchor. If distance -a- is attained: –  Tighten new securing bolts for sealing flange to 15 Nm using alternate and diagonal sequence.

–  Install engine speed sender -G28--arrow- and tighten securing bolt to 5 Nm. –  Install sump → Chapter. –  Install intermediate plate. –  Install flywheel using new bolts. Tighten the fixing bolt to 60 Nm + 90°. 6.) Press sender wheel again.

–  Secure assembly tool -T10134- to crankshaft flange using hexagon socket head bolts -A-. –  Hand tighten both hexagon socket head bolts. –  Move the fitting device -T10134- by hand onto the sealing flange.

–  Screw hexagon nut -E- onto threaded spindle by hand until it lies on assembly housing -C-.

–  Tighten hexagon nut of assembly tool -T10134- with torque wrench -V.A.G 1331- and tool insert -V.A.G 1332/11- to 40 Nm. –  Check installation position of sender wheel on crankshaft again → Anchor. If dimension -a- is too small again: –  Tighten hexagon nut for assembly tool -T10134- to 45 Nm. –  Check installation position of sender wheel on crankshaft again → Anchor.