Skoda Workshop Service and Repair Manuals

Removing sealing flange with rotor   Note These work sequences with the engine removed are shown for purposes of clear presentation. The work sequences are identical with the engine installed and gearbox removed. –  Remove flywheel or driver disc → Chapter. –  Remove intermediate plate. –  Position engine on TDC cylinder 1 → Chapter. –  Removing the oil pan → Chapter.

–  Remove engine speed sender -arrow-. –  Unscrew the fixing screws of the sealing flange.

–  Screw 3 screws M6x35 into the threaded bores of the sealing flange -arrows-. –  Press out sealing flange together with rotor from the crankshaft by alternately screwing the screws into the sealing flange. Install   Note t  On the 1.4/55 kW engine with identification characters BKY in combination with manual gearbox, the assembly device -T10134- is used for installing the sealing flange. In all other cases use the assembly device -T 10017-. t  New sealing flange is supplied from the spare parts with two gasket ring versions. The old versions of engines use an elastomer gasket ring with spring and the new engines have a PTFE gasket ring. t  The sealing flange with PTFE gasket ring is provided with sealing lip supporting ring. This supporting ring is intended as an assembly sleeve and must not be removed before installing. t  Do not separate or turn the sealing flange and rotor after removing them from the spare part package. t  The rotor is given its fitting location by positioning the assembly device -T 10017- or -T10134- to the positioning pin. t  The rotor has an elastomer layer on its sealing surface with the crankshaft. This layer must not be brought into contact with dirt or grease. t  The sealing flange and gasket ring form one unit and must be replaced together with the rotor. t  The assembly device -T 10017- or -T10134- is given its fitting location to the crankshaft by means of a guide bolt, which is guided into the threaded bore of the crankshaft. A - Mounting the sealing flange with rotor on the assembly device -T 10017- or -T10134-

A - Hexagon nut B - Clamping surface C - Assembly cup D - Allan screw

E - Guide bolts (for assembly device -T 10134- with red handle - for fuel engine) F - Positioning pin G - Guide bolts (for assembly device -T 10134- with black handle - for diesel engine)   Note Unless otherwise indicated, the method for the assembly device -T 10017- and -T10134- is identical.

–  Grip assembly device -T 10017- or -T 10134- on clamping surface -B- of the threaded spindle in a vice.

–  Securing clip -A- from the new sealing flange (flange for assembly device -T 10017-)

.... or remove from new sealing flange -arrow- for assembly device -T 10134-.   Note Do not remove or turn the rotor from the sealing flange.

–  Lay the front side of the sealing flange on a clean and level surface. –  Press the rotor -A--arrows-, until it rests on the level surface.   Note The top edge of the rotor and the front edge of the sealing flange must be flush.

The locating hole -B- on the rotor -C- must be flush with the marking -A- on the sealing flange (flange for assembly device -T 10017-)

.... or on the sealing flange for the assembly device -T 10134-.

–  Lay the sealing flange with the front side on the assembly device -T 10017- in such a way that the positioning pin -A- fits into the hole -B- of the rotor

.... or on the assembly device -T10134-.   Note Make sure the sealing flange lies flat on the assembly device.

–  When tightening the knurled screws -A- press the sealing flange and sealing lip supporting ring -B- on the surface of the assembly device in such a way that the positioning pin can no longer slide out of the rotor hole. B - Mounting the assembly device -T 10017- or -T 10134- with sealing flange on the crankshaft flange l  The crankshaft flange must be free of grease and oil l  The engine is positioned on TDC for cylinder 1

–  Unscrew hexagon nut -A- up to the end of the threaded spindle.

–  Screw assembly device with Allan screws -A- onto the crankshaft flange up to the stop.

–  Screw in two M6x35 mm screws -A- by about 3 turns for sealing flange guide into the cylinder block.

For assembly device T 10017: –  Move the assembly cup -A- by hand in the -direction of the arrow- until the rotor -B- rests on the crankshaft flange -C-. Guide bolts -D- on the assembly device -T 10017- must at the same time sink into the threaded bore of the crankshaft. This gives the rotor its final fitting location.

For assembly device T 10134: –  Move the assembly cup -C- by hand in the -direction of the arrow- until the rotor -B- rests on the crankshaft flange -A-. Subsequently insert the guide bolt with red ball -F- fully into the threaded bore of the crankshaft. If the guide bolt is correctly seated, the ball is approx. 10 mm from the assembly cup -C-. This gives the rotor its final fitting location. C - Pressing the rotor with assembly device -T 10017- or -T 10134- onto the crankshaft flange –  Screw in hexagon nut by hand onto the threaded spindle until it rests against the assembly cup.

–  Tighten the hexagon nut of the assembly device using a torque wrench with adapter. Tightening torque: 35 Nm.   Note After tightening the hexagon nut there must still be a narrow air gap between the cylinder block and the sealing flange. D - Inspect the fitting position of the rotor on the crankshaft

–  Unscrew hexagon nut -A- up to the end of the threaded spindle. –  Unscrew two M6x35 mm screws -B- from the cylinder block. –  Unscrew three knurled screws -C- from the sealing flange. –  Unscrew two Allen screws and remove assembly device -T 10017- or -T 10134-.   Note On sealing flange with PTFE gasket ring remove the sealing lip supporting ring.

The fitting position of the rotor on the crankshaft is accurate if there is a distance -a- of 0.5 mm between the crankshaft flange -A- and the rotor -B-. –  Position the steel striaghtedge onto the crankshaft flange.

–  Measure the distance between the steel straightedge and the rotor with a feeler gauge. If the measured distance is less than 0.5 mm: –  Press down rotor → Anchor. If the dimension is correct: –  Tighten the new fixing screws of the sealing alternately crosswise. Tightening torque: 12 Nm.

–  Install engine speed sender -arrow-. Tightening torque: 5 Nm. –  Installing the oil pan → Chapter. –  Fit intermediate plate. –  Install the flywheel or driver disc with new screws → Chapter. E - Pressing down the rotor

–  Screw assembly device -T 10017- or -T 10134- with Allan screws -A- up to the stop onto the crankshaft flange. –  Screw in three knurled screws -C- into the flange. –  Screw in hexagon nut -D- by hand onto the threaded spindle until it rests against the assembly cup -A-.

–  Tighten the hexagon nut of the assembly device using a torque wrench with adapter. Tightening torque: 40 Nm. –  Again inspect the fitting position of the rotor on the crankshaft → Anchor. If the dimension -a- is again too small: –  Tighten the hexagon nut of the assembly device to 45 Nm. –  Again inspect the fitting position of the rotor on the crankshaft → Anchor.