SEAT Workshop Service and Repair Manuals

Pulling spur gear off crankshaft and shrink-fitting new spur gear Consult the equivalence table for tools and equipment according to applicability among Seat / VW / Audi / Skoda → Chapter. Special tools and workshop equipment required

t  Puller -10 - 203-, see equivalent → Anchor

t  Puller -T10392-with pressure element -T10392/1-, see equivalent → Anchor t  Electric heat plate (commercially available) t  Temperature sensor -VAS 6519-, see equivalent → Anchor or manual multimeter -V.A.G 1526D- with temperature sensor -V.A.G 1526D/1-, see equivalent → Anchor Operation process –  Remove sealing flange (pulley end) → Chapter. –  Remove sump → Chapter.   Note When the balancing module must not be replaced, it is sufficient to replace only the centre pinion. In this case, replace centre pinion → Anchor. –  Remove balance shaft assembly → Chapter.

Pulling off spur gear –  Fit the Adapter -T10392/1- in the crankshaft journal.

–  Guide puller -T10392- into holes in the spur gear and turn clockwise -arrow-; tighten lock pins -A-.

–  Counterhold crankshaft with ring spanner -A- and pull spur gear off end of crankshaft by screwing in spindle with ring spanner -B-. Shrink-fitting spur gear   Note t  When heating up new cylindrial pinion, check temperature with temperature meter -VAS 6519-.? t  If a temperature of 200ºC is reached, 4 seconds are left to position the cylindrical pinion in the crankshaft. t  A higher temperature increases this time (220ºC = approx. 6 seconds). t  Make sure the end of the crankshaft is clean.   Caution Do not exceed a maximum temperature of 240 °C; otherwise the spur gear can become discoloured and distorted.

–  Place the new spur gear flat on a hotplate (commercially available) and heat it to at least 200 °C, but not more than 240 °C. The lettering must face upwards. –  Set the temperature measuring device -VAS 6519- to the measuring range „2“. –  Place the temperature sensor -VAS 6519/1- onto the belt of the cylindrical journal, as shown in the figure; Read-off the temperature on the temperature measuring device.   WARNING Risk of burns. Use suitable protective gloves for the following steps.

–  When the required temperature has been reached, pick up the spur gear with pliers as illustrated.   Note Take care not to damage the teeth of the spur gear.

–  With the aid of fitting tool -10 - 203-, slide spur gear by hand onto end of crankshaft as far as stop. This must be done without delay, taking care to keep the gear straight. –  Wait a few minutes to allow the spur gear to cool down, and then install the balance shaft assembly. –  Fit the oil sump → Chapter. –  Install sealing flange (pulley end) → Chapter. → Chapter „Installing a new balancer shaft module“. → Chapter „Installing a previously used balancer shaft module again“.