service AUDI A4 1998 B5 / 1.G 01V Transmission Drive Pinion And Ring Gear Adjust Workshop Manual

39-166


Drive pinion and ring gear,
adjusting

General notes:

Drive pinion and ring gear must be very
carefully adjusted to ensure long service life
and smooth running. At the factory, drive pinion
and ring gear are adjusted relative to each
other to ensure smooth running and low noise
in both directions. The location for the
smoothest running is determined by moving
drive pinion axially whereby ring gear is moved
far enough out of the backlash-free position so
that the backlash is within specified tolerances.
The goal of the adjustment is to reproduce the
setting for the quietest possible running, as
obtained on the test machine during production.
The deviation, or tolerance "r" which is based
on the master gauge "R0" is measured for the
final drive sets supplied as replacement parts
and marked on the outer circumference of the
ring gear. Every drive pinion set - drive pinion
and ring gear - may only be replaced together.
Follow general repair notes for tapered roller
bearings and shims.

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