SEAT Workshop Service and Repair Manuals

Sealing flange (gearbox side): replace t  Sealing flange, gearbox side: Removing → Anchor t  Sealing flange, gearbox side: Fitting → Anchor t  Assembly: → Anchor t  Tightening torque → 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	Mounting tool -T10134-, see equivalent → Anchor

t	Torque wrench (5 - 50 Nm) -V.A.G 1331-, see equivalent → Anchor

t	Insert e/c 24 terminal -V.A.G 1332/11-, see equivalent → Anchor

t	Depth gauge

t	Bolt M6 x 35 (3 units)

t	Bolt M7 x 35 (2 units)

Sealing flange, gearbox side: Removing l  Gearbox removed.   Note t  For clarity, the process is described with the engine removed. t  The sequence of operations is identical with the engine mounted and the gearbox removed. –  Remove the dual mass flywheel → Chapter.

–  Unhook intermediate plate on sealing flange and on the dowel sleeves -arrows-.

–  Rotate crankshaft by turning bolt for toothed belt sprocket until crankshaft is positioned at „TDC“, see image.

–  Remove the engine speed sender -G28--1- using a (standard commercially available) joint neck wrench.   Note Disregard item -2-. –  Remove the oil sump → Chapter

–  Unscrew the attachment bolts -1 … 6- from the sealing flange.   Note

The sealing flange is inserted along with the crankshaft sender wheel. –  For the reverse order: Turn the 3 M6x35 bolts maximum 1/2 rotations in the sealing flange -arrow- one after another. –  Remove sealing flange together with sender wheel. Sealing flange, gearbox side: Fitting   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 separate the sealing flange and the sender wheel or modify the position. t  The sender wheel is held in its installation position on the assembly device -T10134- by a locating pin. t  The sealing flange and the seal make up one inseparable component and can only be replaced along with the sender wheel. t  The assembly tool -T10134- is held in its installation position for the crankshaft by a guide pin which is inserted into a hole on the crankshaft.

Structure of the fitting device -T10134- A -  Attachment surface 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 diesel engines (black handle)

A - Fit the seal along with the sender wheel on the fitting device -T10134-: –  Screw in hexagon nut -B- to just before clamping surface -A- of threaded spindle.

–  Secure the fitting device -T10134- on the attachment surface -B- of the threaded spindle in a vice. –  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 Do not remove the sender crown from the sealing flange or change its position.

l  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.

–  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 front of the sealing flange on the fitting device -T10134-, so that the fastener -B- sits into the hole -A- in the sender wheel.   Note Ensure that the sealing flange presses completely on the fitting device.

–  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.

B - Installing assembly tool -T10134- with sealing flange on crankshaft: l  The crankshaft flange must be free of oil and grease. l  The engine is in TDC of cylinder 1. –  Screw the hexagon nut -B- to end of threaded spindle. –  Press the threaded spindle on the fitting device -T10134- in the -direction of the arrow- until the hexagonal nut -B- sits on the installation bell -A-. –  Point the flat part of the installation bell towards the sealing surface of the oil sump.

–  Secure the fitting device -T10134- to the crankshaft flange; to do so, tighten the Allen bolts -A- about 5 thread levels to the crankshaft flange.

–  To guide sealing flange in cylinder block, screw in 2 M7 × 35 mm bolts -A-.

C - Bolting assembly tool -T10134- onto 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. –  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 - Press the sender wheel with the fitting device -T10134- on the crankshaft flange: –  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 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 the hexagon nut -E- to end of threaded spindle. –  Unscrew the 2 bolts -A- of the engine 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.

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

–  Fit the dial calliper onto the crankshaft flange. –  Measure the distance -a- between crankshaft flange and sender wheel. If distance -a- is too small: –  Press once more on the sender wheel → Anchor. If distance -A- is attained: –  Carry out the remaining installation operations → Anchor.

F - Correct the position of the sender wheel: –  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 hexagon nut of assembly tool -T10134- to 40 Nm using torque wrench -V.A.G 1331- and tool insert, 24 mm -V.A.G 1332/11-. –  Check the fitting position of the sender wheel on the crankshaft once more → Anchor. If the dimension -a- is once again too small: –  Tighten hexagon nut for assembly tool -T10134- to 45 Nm. –  Check the fitting position of the sender wheel on the crankshaft once more → Anchor.

Assembling: –  Screw in, alternating crossways, the attachment bolts -1 … 6 - on the sealing flange.

–  Screw on the engine speed sender -G28--1-. –  Now mount the oil sump → Chapter

–  Fit intermediate plate on sealing flange and push onto dowel sleeves -arrows-. –  Install the dual mass flywheel → Chapter. Tightening torque

Component		Nm
Sealing flange to cylinder block		15 1)
Engine speed sender -G28- to the engine block		5
l  1) Tighten bolts in diagonal sequence