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Cylindrical pinion of the crankshaft: Renew. > < Fitting a new balance shaft assembly

Leon Mk2

Fitting of a used (previously fitted) balance shaft assembly
Fitting of a used (previously fitted) balance shaft assembly
Consult the equivalence table for tools and equipment according to applicability among Seat / VW / Audi / Skoda → Chapter.
Special tools and workshop equipment required
   
t  Hose clamp -T10255-, see equivalent → Anchor
Procedure
  Caution
If the bolt of the idle drive has been slackened or if the drive pinion has been replaced on the crankshaft or the crankshaft has been removed, a new idle drive with coating must be fitted and the hub → Item with bolt → Item must be replaced as well as the axial support disc otherwise the backlash will not be correct. Procedure when installing → Chapter.
  Note
t  If re-installing the "old" balance shaft assembly and neither the drive gear on the crankshaft nor the crankshaft itself have been renewed, proceed as described in the following. The intermediate gear wheel must also not have been loosened.
t  If the bolt for the idler gear has been slackened or the drive gear on the crankshaft or the crankshaft itself have been renewed, you must install a new idler gear with the appropriate coating. Procedure when installing → Chapter „Fitting a new balance shaft assembly“.
t  Renew bolts tightened with specified tightening angle.
  W00-10250
–  Lock the balance shaft using the pinning tool -T10255-; If necessary, turn the balance shaft.
l  Locking tool pin must engage in groove in balancer shaft when doing this.
–  Insert dowel sleeves if no dowel sleeves for centring balancer shaft module are fitted on cylinder block.
–  Place balancer shaft module on cylinder block.
l  With the balance shaft locked in position, the idler gear must engage in the drive gear on the crankshaft.
l  The intermediate gear wheel must have a slight tooth backlash.
  A13-10206
–  Tighten the screws in the sequence -1 … 8- by hand.
–  Tighten the bolts of the balance shaft assembly as follows:
1.  Tighten to 6 Nm in the sequence -1 ... 8-.
2.  Tighten the bolts -5- and -7- to 13 Nm.
3.  Continue turning bolts -5- and -7- a further 90° (1/4 turn) using a rigid wrench.
4.  Tighten the bolts -1 -4-, -6- and -8- to 20 Nm.
5.  Continue turning bolts -1 ... -4-, -6- and -8- a further 90° (1/4 turn) using a rigid wrench.
–  Remove thecounterholder -T10050-.
Perform further installation in reverse order, paying attention to the following:
–  Install sump → Chapter.
–  Install vibration damper → Chapter.
–  Fill up with engine oil and check engine oil level → Booklet101.
  A13-10207

Cylindrical pinion of the crankshaft: Renew. > < Fitting a new balance shaft assembly