SEAT Workshop Service and Repair Manuals

Crankshaft sealing flange, on the flywheel side: Renew. t  To remove the sealing flange with the integrated sender wheel from the crankshaft → Anchor t  To remove the sealing flange with the integrated sender wheel to the crankshaft → Anchor t  A - Mount the seal along with the sender wheel on the assembly tool -T10134- → Anchor t  B - Fit the centre guide -T10134- with the sealing flange on the crankshaft flange → Anchor. t  C - Mount the fitting device -T10134- on the crankshaft flange → Anchor t  D - Press the sender wheel with the fitting device -T10134- on the crankshaft flange → Anchor t  E - Check the fitting position of the sender wheel on the crankshaft → Anchor t  F -To re-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	Wrench e/c 24 -VAG 1332/11-, see equivalent → Anchor

t	Hexagon bolts (Qty. 3) M6×35 mm

t	Feeler gauge

t	Vernier gauge

To remove the sealing flange with the integrated sender wheel from the crankshaft   Note t  For clarity, the process is described with the engine removed. t  The procedure is identical whether the engine is installed or removed. Procedure –  Remove the flywheel and the drive plate. –  Put the engine in TDC cylinder 1 → Chapter. –  Remove sump → Chapter.

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

–  Screw the three bolts M6 x 35 mm into the threaded holes of the sealing flange-arrows-. –  Screw the screws into the sealing flange in diagonal pairs (max. 180° per screw) and drive the sealing flange together with the wheel sender away from the crankshaft. To remove the sealing flange with the integrated sender wheel to the crankshaft   Note t  The sealing flange with a PTFE seal is equipped with a sealing lip support ring. This support ring acts as an assembly sleeve and must not be removed before installation. t  Once unwrapped, do not separate the sealing flange and the sender wheel or modify the position. t  The sender wheel finds its position when fitted to the position pin of the fitting device -T10134-. t  The sealing flange and the seal make up one inseparable component and can only be replaced along 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.

Assembly tool -T10134- A -  Tightening flats 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)

A - Mount the seal along with the sender wheel on the assembly tool -T10134- –  Tighten the hexagonal nut -B- to just before the threaded spindle attachment surface -A-.

–  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-. –  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. –  Secure the sealing flange by the front on a flat, clean 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 Fitting device -T10134- in such a way that the locating pin -B- fits into the hole -A- of the sender wheel.   Note Ensure the sealing flange lies flat on the assembly tool. –  Press the sealing flange and the support ring of the sealing lip -B- when tightening the three knurled screws -A- on the area of the assembly device -T10134-.

Therefore, the locating pin cannot fall out from the borehole 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  Crankshaft flange must be free of oil and grease. l  The engine should be in TDC cylinder 1.

–  Screw hexagon nuts -B- to end of threaded spindle. –  Press threaded spindles 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 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 -A- on the cylinder block to guide the sealing flange.

C - Mount the fitting device -T10134- on the crankshaft flange –  Push the installation socket -C- by hand in the direction of the arrow until the sealing lip pressure ring -B- sits on the crankshaft flange -A-. –  Insert the guide pin for petrol engines (red handle) -F- into the crankshaft hole. This ensures that the sender wheel reaches its final installation position.   Note Do not insert the guide pin for petrol engines (red handle) -F- into the crankshaft hole. –  Tighten the Allen bolts of the fitting device by hand. –  Screw hexagon nut -E- onto threaded spindle by hand until it lies on assembly housing -C-.

D - Press the sender wheel with the fitting device -T10134- on the crankshaft flange –  Tighten the hexagonal nut of D - Use the assembly device -T10134- to slip on the sender wheel with the torque wrench -VAG 1331- and the 24 mm tool insert -VAG 1332/11- at a tightening torque of 35 Nm, while applying pressure.   Note A small air gap must be present between cylinder block housing and sealing flange after tightening hexagon nut to 35 Nm.

E - Check the fitting position of the sender wheel on the 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. –  Remove the centre guide -T10134-. –  Remove the pressure ring from the sealing lip.

–  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 crankshaft flange and sender crown. If dimension »a« is too small: –  Readjust the sender wheel → Anchor. If dimension »a« is achieved: –  Tighten new securing bolts for sealing flange to 10 Nm using alternate and diagonal sequence.

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

F -To re-adjust the sender wheel –  Secure the centre guide -T10134- using the Allen bolts -A- to the crankshaft flange. –  Tighten both Allen bolts by hand. –  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 fitting device -T10134- using the torque wrench -VAG 1331- and the insert e/c 24 terminal -VAG 1332/11- to 40 Nm. –  Check installation position of sender wheel on crankshaft again → Anchor. If the distance »a« is too small: –  Tighten the hexagonal bolt of the centre guide -T10134- to a torque of 45 Nm. –  Check installation position of sender wheel on crankshaft again → Anchor.