Output Shaft 1ST Through 4TH Gear, Adjusting: Notes
Special tools and workshop equipment required
- Transmission Support:VW353
- Dial Gauge Holder:VW387
- Press Piece - Rod:VW407
- Press Piece - Multiple Use:VW433
- Seal Installer - Stator:VW792
- Crankshaft Holding Fixture:VW801
- Holding Plate:VW309A
- Slide Hammer - Press Plate:2050
- Torque Wrench 1331 5-50Nm:VAG1331
- -1- Internal Puller:VAS251615 (21-7)
- -4- Counter Support:VAS251623 (22-2)
- Dial Indicator:VAS6080A
(Selecting the correct adjusting shim for the output shaft)
It is necessary to adjust the output shaft if the following components were replaced:
- Transmission Housing
- Clutch Housing
- Output shaft for 1st to 4th gears or
- Output shaft tapered roller bearing
Adjustment Overview. Refer to ADJUSTMENT OVERVIEW .
Requirements
- The sealing surfaces of the clutch and transmission housing must be cleaned of sealant.
- Install the output shaft that is going to be measured.
-- Install the tapered roller bearing outer race in the transmission housing with a 1.70 mm shim. Support transmission housing directly beneath bearing mount using :2050 .
-- Install the output shaft for 1st through 4th gears into the clutch housing.
-- Install the transmission housing and tighten the bolts -A and B- diagonally.
-- Position the measuring tools on the clutch housing and secure them with a bolt -arrow-.
-- Set the dial gauge (3 mm range) with 1 mm preload to "0".
-- Loosen securing bolts for clutch housing/transmission housing in diagonal sequence until bolts clear transmission housing and output shaft.
-- Read measured value on dial indicator and note (example: 0.14 mm).
The measured value will not be displayed when loosening the bolts that connect the clutch housing to the transmission housing.
Install a 1.95 mm shim or, if necessary, a 2.20 mm shim in place of the 1.70 mm shim for measuring.
Allocate the shims. Refer to the Parts information
Shim, Determining
The required bearing tension is reached as follows:
The specified bearing pre-load is reached when determined measured value (0.14 mm) is subtracted from inserted adjustment shim (1.70 mm).
A constant figure of (0.20 mm) is added to the reading.
Example:
| Inserted shim | 1.70 mm |
| - measured value | 0.14 mm |
| + Preload (constant value) | 0.20 mm |
| Shim thickness | 1.76 mm |
-- Select the correct shim thickness according to the table. Refer to OUTPUT SHAFT 1ST THROUGH 4TH GEAR, ADJUSTING .
-- Remove the transmission housing and remove the tapered roller bearing outer race from the transmission housing.
A -:VAS251623 (22-2)
B -:VAS251615 (21-7)
-- Remove the inserted shim (1.70 mm) from the transmission housing.