Seat Leon >> Dismantling and assembling output shaft

Special tools and workshop equipment required

Gears, shafts

  • Tightening plate - VW 402-
  • Die - VW 407-
  • Die - VW 412-
  • Tube element - VW 415 A-
  • Thrust pad - VW 432-
  • Inlay socket - 30 - 100-

 

  • Internal puller - VAS 251 611- or, e.g. internal puller - 1- Kukko 21/5-

Gears, shafts

  • Counter-support - VAS 251 621- or, e.g. counter-support - Kukko 22/1-

Gears, shafts

  • Counter-support - VAS 251 621- or, e.g. counter-support - Kukko 22/1-

Gears, shafts

Pulling cylindrical roller bearing out of clutch housing

  • When pulling out, squeeze together retaining ring -arrow- of cylindrical roller bearing, using pliers -C-.
  1. - Counter-support - VAS 251 621- or, e.g. counter-support - Kukko 22/1-
  2. - Internal puller - VAS 251 611- or, e.g. internal puller - Kukko 21/5-

Extract the roller bearing from the clutch housing

  • Support gearbox housing with tube - VW 415 A- (not visible in figure) directly below bearing support.
  • When pressing in, compress circlip -arrow- for roller bearing using pliers -A-.
  • Remove the pliers before the bearing is in its final installation position. The securing ring should insert into the groove of the clutch pan.

Press out securing ring -1- from its slot

  1. - Protective gloves
WARNING

Ensure retaining ring does not spring out uncontrolled.

Press out the mobile sleeve / synchroniser body of 1st and 2nd gear

  • After removing retaining ring, press off synchromeshed gear for 2nd gear together with locking collar and synchro-hub.

Installation position of 3rd gear and 4th gear

  • Fit 4th gear wheel -A- onto output shaft.

Installation position:

The collar -arrow 1- should face towards the 3rd gear pinion -B-.

  • Fit the securing rings -2- and -3-.
  • Fit 3rd gear wheel -B- onto output shaft.

Installation position:

The collar -arrow 2- should face towards the 4th gear pinion -A-.

  • Fit the securing ring -1-.

Check overall whether synchro-ring of the 1st and 2nd gear and inner ring are worn

  • Press synchro-ring, outer race and inner ring onto cone of synchromeshed gear and measure gap -a- at three points displaced by approx. 120º using feeler gauge.
  • Make a note of average value.

Gears, shafts

Note Always replace inner ring, outer ring and synchro-ring together.

Installation position of the outer, inner and synchromesh rings for 2nd gear

  • Fit the interior ring -A- onto the mobile pinion for 2nd gear.

    Angled lugs -arrow 1- face outer ring -B-.

  • Fit the outer ring -B-.

Lugs -arrow 2- engage in notches -arrow 3- of synchromeshed gear.

  • Fit the synchroniser ring -C-.

The recesses -arrow 4- locate on the tabs -arrow 1- of the inner ring -A-.

Disassembly and assembly of the mobile element/synchroniser body for the 1st and 2nd gear

  1. - Spring
  2. - Mobile element
  3. - Synchromesh hub
  4. - Locking element
  • The locking collar is fitted onto the synchro-hub.

Installation position:

After assembling the unit, the groove of the front part -arrow Aand the highest collar -arrow B- of the synchro-hub should face the exterior cogs of the locking collar -arrow C-.

The deeper grooves -arrow D- of the locking piece in the synchromesh must be aligned with the grooves -arrow E- of the mobile sleeve.

Gears, shafts

Assembling locking collar with synchro-hub for 1st and 2nd gears

  • Locking collar has been pushed over synchro hub.
  • Fit the locking elements in the deepest grooves -arrows- and fit the elastic rings off-set by 120º. Angled end of spring must locate in hollow locking piece.

Insert mobile element/synchroniser body of the 1st and 2nd gear

Installation position:

Groove in locking collar for selector fork faces 1st gear and teeth for reverse gear face 2nd gear.

  • Turn the synchromesh ring so that the notches coincide with the locking elements.

Fitting retaining ring

  • Fit the 1st gear securing ring on the mobile sleeve / synchromesh assembly.

Gears, shafts

Installation position of outer ring for 1st gear

The tabs -arrows- point towards the teeth of the reverse gear -A-.

Installation position of 1st gear inner ring -A-

The tabs -arrows 1- insert into the recesses -arrows 2- of the synchromesh ring -B-.

Installation position of synchromeshed gear for 1st gear

The highest collar -A- should face 2nd gear -B-. Notches in shoulder -arrows- engage in lugs of outer ring (-arrow-)

    Assembly overview - output shaft
    Note When installing new gears or new input shaft, refer to - Electronic parts catalogue (ETKA) and technical data. Install all bearings, synchromeshed gears and synchro-rings on output ...

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