SEAT Workshop Service and Repair Manuals

Renewing rear sealing flange t  Press out the sealing flange with sender ring → Anchor t  Sealing flange with sender wheel: Pressing in → 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 - Press the sender wheel with the centre guide -T10134- onto the crankshaft flange. → Anchor t  E - Check the fitting position of the sender wheel on the crankshaft: → Anchor t  F - Press sender ring further → Anchor t  Assembly: → 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  Depth gauge t  Bolt M6 x 35 (3 units) t  Bolt M7 x 35 (2 units) Press out the sealing flange with sender wheel –  Remove the gearbox → Rep. gr.34. –  Remove drive plate → Chapter. –  Place the oil extractor -VAG 1782- underneath the engine and drain the engine oil. –  Remove intermediate plate.

–  Rotate the crankshaft as shown OT cyl. 1. –  Remove sump → Chapter.   Note t  For clarity, the process is described for a removed engine. t  The sequence of operations is identical with the engine mounted and the gearbox removed.

–  Removal of engine-speed sensor -G28--item 1- with commercially available wrench socket.

–  Unscrew the securing bolts -1 ... 6- of the sealing flange.   Note

The sealing flange is inserted along with the crankshaft sender wheel. –  To press out, screw in 3 bolts M6x35 -arrows- alternately into sealing flange not more than 1/2 turn at a time. –  Remove sealing flange together with sender wheel. Sealing flange with sender wheel: refitting   Note t  The sealing flange with the PTFE seal is fitted with a pressure ring on the sealing lip. This pressure ring fulfils the function of an assembly sleeve and cannot be removed before fitting. t  Once unwrapped, do not remove the sealing flange and the sender wheel or twist them. 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 a unit and may only be replaced 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.

Structure of the centre guide -T10134- A -  Tightening flats B -  Conical hexagon bolt C -  Installation bell D -  Mounting 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.

–  Fix the fitting device -T10134- holding it in place in a bench vice, to the threaded spindle surface -B-. –  Press down on the installation bell -C-, so that it rests -arrow- on the hexagonal bolt -B-.   Note Inner part of assembly device and assembly housing must be level with each other.

–  Unscrew the attachment clip -arrow- from the new sealing flange.   Note The sender wheel must not be taken out of the sealing flange or rotated out of position.

l  Locating hole -A- on sender wheel -C- must align with marking -B- on 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.

l  The upper edge of the sender wheel and the front edge of the sealing flange must align -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 sealing flange lies flat on assembly tool.

–  Press the sealing flange and sealing lip support ring -B- onto the surface of the Fitting device -T10134- while tightening the 3 knurled screws -A- so that the locating pin cannot slip out of the hole of the sender wheel.   Note Ensure that the sender wheel remains secured in the fitting device when installing the sealing flange.

B - Fit the centre guide -T10134-with the sealing flange on the crankshaft flange l  Crankshaft flange free of oil and grease. l  The engine should be in TDC cylinder 1. –  Screw hexagon nuts -B- to end of threaded spindle. –  Press the threaded spindle on the centre guide -T10134- in the -direction of the arrow- until the hexagonal nut -B- sits on the installation bell -A-. –  Position flat edge of assembly housing towards sealing surface for sump on cylinder block.

–  Secure assembly tool -T10134- to crankshaft flange by screwing hexagon socket head bolts -A- approx. 5 threads into crankshaft flange.

–  Screw in the 2 bolts M7×35 -A- on the engine block to guide the sealing flange.

C - Screw the fitting device -T10134- onto the crankshaft flange: –  Move the installation bell -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 diesel engines (black handle) -D- into the crankshaft hole. In this way, the final fitting position of the sender wheel is established.   Note The guide pin for PETROL engines (red handle) -F- MUST NOT be inserted into the threaded hole in the crankshaft. –  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 centre guide -T10134- onto the crankshaft flange: –  Tighten the hexagonal bolt of the fitting device -T10134- to a torque of 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 position of the sender wheel on the crankshaft. –  Screw hexagon nut -E- to end of threaded spindle. –  Unscrew the 2 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.

l  The sender wheel is positioned correctly on the crankshaft if the distance -a- between the crankshaft flange -A- and the sender wheel -B- is 0.5 mm.

–  Apply a depth gauge on the crankshaft flange. –  Measure the distance „A“ between crankshaft flange and sender crown. If distance „a“ is too small: –  Press the sender wheel → Anchor. If distance „A“ is attained: –  Continue with assembly → Anchor.

F - Pressing sender wheel in further: –  Secure the fitting device -T10134--A- to the crankshaft flange; to do so, tighten the Allen bolts by hand –  Slide fitting device -T10134- onto the sealing flange by hand.

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

–  Tighten the hexagonal bolt of the fitting device -T10134- to a torque of 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 fitting device -T10134- to a torque of 45 Nm. –  Check the fitting position of the sender wheel on the crankshaft once more → Anchor. Assembly Installation is carried out in the reverse sequence; note the following:

Tightening torques → Chapter „Sealing flange and flywheel“ –  Tighten new securing bolts for sealing flange -1 ... 6- in diagonal sequence.

–  Screw on the engine speed sender -G28--Item 1-. –  Fit the oil sump → Chapter.

–  Fit intermediate plate on sealing flange and push onto dowel sleeves -arrows-. –  Install drive plate → Chapter. –  Install gearbox → Rep. gr.34.