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Position of shims > < Adjusting drive pinion and crown wheel

A4 Mk1

5-Speed Manual Gearbox 012/01W Front-wheel Drive
Adjusting drive pinion and crown wheel
Adjusting and marking of gear sets
 
N39-0435
  • Marking "0937" indicates Oerlikon final drive set with transmission ratio 37 : 9.
  • Pairing number (312) of final drive set
  • Deviation (tolerance) "r" is based on the test machine master gauge used in production. The deviation "r" is always given in 1/100 mm. Example: "25" means
    r = 0.25 mm
  •     Ro -    Length of test machine master gauge used.
  • Ro - Crown wheel ø170 mm = 54.95 mm
  • Ro - Crown wheel ø180 mm = 59.65 mm
 
N39-0435
  •     R -    Actual dimension between crown wheel and face of pinion shaft at point with quietest running for this gear set.
  •     Vo -    Hypoid offset

Position of shims > < Adjusting drive pinion and crown wheel