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Oil filter bracket and engine oil cooler > < Installing a new balance shaft assembly

A3 Mk2

Re-installing a used balance shaft assembly
Re-installing a used balance shaft assembly
Special tools and workshop equipment required
   
t  Locking tool -T10255-
Procedure
  Note
t  If re-installing the "old" balance shaft assembly and neither the spur gear on the crankshaft nor the crankshaft itself have been renewed, proceed as described in the following. It is also essential that the idler gear has NOT been slackened.
t  If the bolt for the idler gear has been slackened or the spur gear on the crankshaft or the crankshaft itself have been renewed, you must install a new idler gear with the appropriate coating. Procedure for installation → Chapter „Installing a new balance shaft assembly“.
t  Renew the bolts tightened with specified tightening angle.
  W00-10250
–  Lock balance shaft with locking tool -T10255-, turning balance shaft as required.
l  The lug of the locking tool must engage in the groove of the balance shaft.
–  If not already fitted, fit dowel sleeves into cylinder block for centring balance shaft assembly.
–  Attach balance shaft assembly to cylinder block.
l  With the balance shaft locked in position, the idler gear must engage in the spur gear on the crankshaft.
l  Idler gear must have noticeable backlash.
  A13-10206
–  Tighten bolts securing balance shaft assembly → Fig..
–  Remove crankshaft stop -T10050-.
Remaining installation steps are carried out in reverse sequence; note the following:
–  Install sump → Chapter.
–  Install vibration damper → Chapter.
  A17-10661

Oil filter bracket and engine oil cooler > < Installing a new balance shaft assembly