SEAT Workshop Service and Repair Manuals

Insert the sealing flange with sender wheel by pressing   Note! t  Gradual introduction of a new generation of sealing flanges with PTFE seal (Teflon). The sealing flange with spring ring will continue to be offered as spare part. When fitting a new sealing flange, be careful to use the same type of sealing flange that was previously fitted. t  The sealing flange with a PTFE sealing ring is equipped with a sealing lip support ring. This support ring serves the function of a fitting sleeve and may not be removed prior to installation. t  Sealing flange and sender wheel must not be separated or moved after removal from packaging. t  The sealing surace of the sealing flange with spring ring has an Elastomer coating with respect to the crankshaft. This coating must never come into contact with dirt or grease. t  The sender wheel is held in its installation position by a fixture on the assembly device -T10017- locating pin. t  Sealing flange and seal are one unit and must be replaced together with the sender wheel only.

t  The assembly appliance -T10017- maintains its installation position to the crankshaft via a guide pin which is inserted into a threaded hole in the crankshaft. A -  Hexagon nut B -  Clamping surface C -  Tool bell housing D -  Allen bolt E -  Guide pin F -  Locating pin A - Assembling sealing flange with sender wheel on assembly appliance -T10017-

–  Screw hexagon nut -A- until it reaches the clamping surface -B- on the threaded spindle.

–  Clamp assembly appliance -T10017- in a vice on clamping surface -B- on the threaded spindle. –  Press assembly bell housing -C- downwards so that it lies on the hexagon nut -A- (arrow).   Note! Inner part of assembly appliance and assembly bell housing must be at same height (level).

–  Remove securing clip -A- from new sealing flange.   Note! The sender wheel must not be taken out of the sealing flange or should its position in respect to this be changed.

–  The locating hole -B- on the sender wheel -C- must align with the marking -A- on the sealing flange.

–  Place the sealing flange (with the forward side downwards) on a clean flat surface. –  Push the sender wheel (sealing lip support ring joined to PTFE sealing ring) -A- downwards in direction of arrow until it lies on the flat surface.

–  The upper edge of the sender wheel and the forward edge of the sealing flange must align -arrows-.

–  Place the sealing flange, with the forward side on the assembly appliance -T10017-, so that the locating pin -A- can be inserted in the sender wheel hole -B-.   Note! Ensure the sealing flange lies flat on the assembly appliance.

–  Push the sender wheel -B- (Sealing lip support ring joined to PTFE sealing ring) onto the surface of the assembly appliance whilst tightening the three knurled screws -A-, so that the locating pin cannot slide out of sender wheel hole.   Note! Ensure the sender wheel remains fixed on the assembly appliance when installing the sealing flange. B - Assembling appliance -T10017- with sealing flange on crankshaft flange Prerequisites l  Crankshaft flange must be free of oil and grease. l  Engine positioned at TDC No. 1 cylinder 1. Work sequence

–  Screw hexagon nut -A- to end of threaded spindle. –  Press assembly appliance threaded spindle in direction of arrow, until the hexagon nut -A- lies against the assembly bell housing -C-.

–  Align flat side of assembly bell housing towards oil sump side of crankcase sealing surface. –  Secure assembly appliance to crankshaft flange with Allen bolts -A-   Note! Secure the Allen bolts -A- approx. 5 turns of thread on the crankshaft flange

–  Screw two M6×35 mm bolts -A- into cylinder block to guide sealing flange. C - Fitting assembly appliance -T10017- onto crankshaft flange

–  Slide assembly bell housing -A- in direction of arrow by hand until the sender wheel (Sealing lip support ring for PTFE sealing ring)  -B- lies against the crankshaft flange -C-.   Note! The assembly appliance guide pin -D- is guided into threaded hole in crankshaft during the fitting sequence. This ensures the sender wheel reaches its final installation position. –  Hold assembly bell housing in this position and screw both assembly appliance Allen bolts hand tight. –  Screw hexagon nut -E- onto threaded spindle by hand until it lies against the assembly bell housing -A-. D - Pressing sender wheel onto crankshaft flange with assembly appliance -T10017-

–  Tighten hexagonal nut of assembly appliance with torque spanner -SAT 8010- and ring spanner -SAT 8010/24C-.    Tightening torque: 35 Nm   Note! A small air gap must be present between cylinder block and sealing flange after tightening hexagon nut to 35 Nm. E - Checking sender wheel installation position on crankshaft

–  Screw hexagon nut -A- to end of threaded spindle. –  Remove two M6×35 mm hexagon bolts -B- from cylinder block. –  Screw the three knurled screws -C- out of sealing flange. –  Pull assembly appliance bell housing -D- back to hexagon nut -A- (Only for sealing flange with elastic washer).

The sender wheel has the correct installation position on crankshaft when a gap of -a- = 0.5 mm exists between crankshaft flange -A- and sender wheel -B-.   Note! t  On the sealing flange with PTFE sealing ring, completely unbolt the assembly appliance -T10017- and remove the sealing lip support ring. t  To enable the measurements to be shown more clearly -a- the crankshaft flange is illustrated without the fitted assembly appliance -T10017-.

–  Place a Vernier caliper against the crankshaft flange -A- (marked area).

–  Measure the distance -a- between Vernier caliper and sender wheel with a feeler gauge -A-. If measurement -a- is too small: –  Re-press sender wheel → Anchor. When dimension -a- is achieved: –  Remove assembly appliance. –  Tighten the new securing bolts for the sealing flange using alternate and diagonal sequence.    Tightening torque: 12 Nm

–  Remove engine speed sender -arrow-.    Tightening torque: 5 Nm –  Install sump → Chapter. –  Install intermediate plate. –  Assemble fly wheel with new bolts. By locking the flywheel with counter support -T20075A-.    Tightening torque: 60 Nm + 1/4 turn. (90°) F - Rectify sender wheel position

–  Slide assembly bell housing -A- to sealing flange -B- by hand. –  Screw two M6×35 mm bolts -C- into cylinder block to guide sealing flange -B-. –  Screw hexagon nut -D- onto threaded spindle by hand until it lies against the assembly bell housing -A-.

–  Tighten hexagonal nut of assembly appliance with torque spanner -SAT 8010- and ring spanner -SAT 8010/24C-.    Tightening torque: 40 Nm –  Check installation position of sender wheel on crankshaft again → . If dimension -a- is too small again: –  Tighten hexagon nut of assembly appliance to 45 Nm. –  Check installation position of sender wheel on crankshaft again → .