SEAT Workshop Service and Repair Manuals

Renewing crankshaft sealing flange - flywheel end t  Drive the sealing flange with sender wheel from the crankshaft → Anchor t  Drive the sealing flange with sender wheel onto the crankshaft → Anchor t  A - Mount the sealing ring with sender wheel in the centre guide -T10134- → Anchor t  B - Fit the centre guide -T10134- with the sealing flange on the crankshaft flange → Anchor. t  C - Screw the centre guide -T10134- to the crankshaft flange → Anchor. t  D - Mount the sender wheel with the centre guide -T10134- to the crankshaft flange → Anchor. t  E - Check the fitting location of the sender wheel on the crankshaft → Anchor t  F - Adjust the sender wheel → 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	Centre guide -T10134-, see equivalent → Anchor

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

t	Insert e/c 24 terminal -VAG 1332/11-, see equivalent → Anchor

t	Three hexagonal bolts M6 x 35 mm

t	Feeler gauge

t	Dial calliper

Drive the sealing flange with sender wheel from the crankshaft   Note t  For the sake of clarity, the work is performed with the engine removed. t  The sequence of operations is identical with the engine mounted and the gearbox removed. Operation process –  Remove gearbox → . removing and fitting ; Rep. gr.34 –  Remove the pressure plate and the clutch disc → Sachs clutch: Removing and installing ; Rep. gr.30. –  Turn crankshaft in direction of engine rotation to TDC No. 1 cylinder → Chapter. –  Remove flywheel. –  Remove sump → Chapter.

–  Remove the engine speed sender -G28--arrow-. –  Unscrew sealing flange securing bolts.   Note The sealing flange and the sender wheel are removed together from the crankshaft by the three M6 x 35 mm bolts.

–  Screw three bolts M6 x 35 mm into the threaded spaces of the sealing flange -arrows-. –  Alternatively (max.1/2 turn (180°) per bolt), bolts on the sealing flange and remove flange from the crankshaft with the sender wheel. Drive the sealing flange with sender wheel onto the crankshaft   Note t  The sealing flange with the PTFE seal is fitted with a pressure ring on the sealing lip. This support ring acts as an assembly sleeve and must not be removed before installation. t  Sealing flange and sender wheel must not be separated or rotated out of position after removal from packaging. t  The sender wheel finds its position automatically when fitted to the position pin of the centre guide -T10134-. t  Sealing flange and oil seal form one unit and must only be renewed together with the sender wheel. t  The position of the centre guide -T10134- with respect to the crankshaft is determined by a guide pin inserted in a borehole in the crankshaft.

Centring pin -T10134- A -  Tightening flats B -  Conical hexagon bolt C -  Installation bell D -  Locating pin E -  Hexagon socket head bolt F -  Guide pin for diesel engines (black handle) G -  Guide pin for petrol engines (red handle)

A - Mount the sealing ring with sender wheel in the centre guide -T10134- –  Screw in hexagon nut -B- to just before clamping surface -A- of threaded spindle.

–  Secure the centre guide -T10134- on the attachment surface -A- of the threaded spindle in a vice. –  Press down on the installation socket -C- so that it rests on the hexagonal bolt -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 rotated out of position.

–  The locking hole -A- on the sender wheel -C- must coincide with the mark -B- on the sealing flange. –  Place sealing flange with front side downwards on a clean flat surface.

–  Press the sealing lip pressure ring -A- in the direction of the -arrow- downwards until it rests on the flat surface.

–  The upper edge of the sender wheel and the front edge of the sealing flange must coincide -arrows-.

–  Place the sealing flange with the front side on the centre guide -T10134- in such a way that the locating pin -B- fits into the hole -A- of the sender wheel.   Note Ensure sealing flange lies flat on assembly tool.

–  When tightening the knurled bolts -A- on the centre guide -T10134-, press the sealing flange and the sealing lip pressure ring -B- so that the position pin does not come out of the hole in the sender wheel.   Note Ensure that the sender wheel remains secured in the fitting device when fitting the sealing flange. B - Fit the centre guide -T10134- with the sealing flange on the crankshaft flange . l  The crankshaft flange must be free of oil and grease. l  The engine must be located at TDC cyl. 1.

–  Unscrew the hexagonal bolt -B- to the end of the threaded spindle. –  Press the threaded spindle of the centre guide -T10134- in the direction of the arrow until the hexagonal nut -B- is in contact with the installation socket -A-. –  Align flat side of assembly housing on sump side of crankcase sealing surface.

–  Secure the centre guide -T10134- using the Allen bolts -A- to the crankshaft flange.   Note Screw the Allen screws -A- by approx. 5 threads into the crankshaft flange.

–  Screw in the 2 bolts M6×35 mm -A- on the engine block to guide the sealing flange. C - Screw the centre guide -T10134- to the crankshaft flange .

–  Push assembly housing -C- by hand in direction of arrow until sealing lip support ring -B- contacts crankshaft flange -A-. –  Push guide pin for petrol engines (red knob) -F- into hole in crankshaft. In this way, the final fitting position of the sender wheel is established.   Note The guide pin for diesel engines (black knob) -D- 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-. D - Mount the sender wheel with the centre guide -T10134- to the crankshaft flange .

–  Tighten the hexagon nut of the centre guy -T10134- using the torque wrench -VAG 1331- and the insert e/c 24 terminal -VAG 1332/11- to 35 Nm.   Note A small air gap must be present between cylinder block and sealing flange after tightening hexagon nut to 35 Nm. E - Check the fitting location of the sender wheel on the crankshaft

–  Screw hexagon nut -E- to end of threaded spindle. –  Unscrew the two bolts -A- of the engine block. –  Unscrew the knurled bolts -B- from the sealing flange. –  Remove the centre guide -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 distance -a- between crankshaft flange and sender wheel. If distance -a- is too small: –  Readjust the sender wheel → Anchor. If distance -a- is attained: –  Tighten new securing bolts for sealing flange to 15 Nm using alternate and diagonal sequence.

–  Fit the engine speed sender -G28--arrow- and tighten the attachment bolt to 5 Nm. –  Fit the oil sump → Chapter. –  Install spacer plate. –  Install flywheel using new bolts. Tighten securing clamp + 1/4 to 60 Nm. (90°). F - Adjust the sender wheel

–  Secure the centre guide -T10134- using the Allen bolts -A- to the crankshaft flange. –  Hand tighten both hexagon socket head bolts. –  Manually place the centre guide -T10134- on the sealing flange.

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

–  Tighten the hexagon nut of the centre guy -T10134- using the torque wrench -VAG 1331- and the insert e/c 24 terminal -VAG 1332/11- to 40 Nm. –  Check the fitting position of the sender wheel on the crankshaft once more → Anchor. If dimension -a- is too small again: –  Tighten the hexagonal bolt of the centre guide -T10134- to a torque of 45 Nm. –  Check the fitting position of the sender wheel on the crankshaft once more → Anchor.