Symptoms:

  • Chatter on acceleration
  • Push belt & sheave (pulley) surface damage

Cause:

Bore wear at the volumetric flow control valve allows pressure loss that prevents proper pulley control.

Correction:

Restore critical clearances and renew pulley control by reconditioning the bore and installing Sonnax oversized volumetric flow rate kit.

01J, 01T

Oversized Volumetric Flow Rate Kit
Part No. 33741B-04K


You need this if... View Instructions Find a Distributor

Audi 01J and 01T units may chatter on acceleration and exhibit push belt and pulley surface damage due to wear in the volumetric flow control valve bore. Wear in this bore allows critical pressure escape that prevents correct pulley control. Reconditioning the bore and installing Sonnax oversized volumetric flow rate kit 33741B-04K renews crucial clearances and restores normal hydraulic operation.

  • Hardcoat anodized aluminum valve combats premature wear
  • Annular grooves help center valve in bore to prevent side-load wear
  • Valve
  • End Plug
  • O-Ring

Sonnax valve body layouts provide a detailed overview of individual units making it quick and easy to determine what’s available for the specific valve body you’re working on. See all Sonnax valve body layouts.

VW/Audi 01J Valve Body Layout

VW/Audi 01J Valve Body Layout

VW/Audi 01T Valve Body Layout

VW/Audi 01T Valve Body Layout
  • 01J, 01T Oversized Volumetric Flow Rate Kit 33741B-04K
  • 01J, 01T Oversized Volumetric Flow Rate Kit 33741B-04K

You need this if...

Vacuum testing at the port(s) indicated fails to hold the recommended minimum in-Hg, or if wear is visually detected.

01J, 01T Oversized Volumetric Flow Rate Kit Vacuum Test Locations