Input Shaft: Notes
Special tools and workshop equipment required
- Thrust Plate VW 401
- Thrust Plate VW 402
- Punch VW 407
- Thrust Disc VW 412
- Thrust Pad 16.5/28 mm dia. VW 431
- Arbor 50 mm dia. VW 432
- Thrust Tube VW 454
- Locking Pin 30-505
- Thrust Piece 40-105
- Press Tube 2040
- Kukko Extractor 30-37 mm 21/5
- Kukko Puller 65-160 mm 18/1
- Kukko Separating Tool 12-75 mm 17/1
- Kukko Separating Tool 22-115 mm 17/2
- Kukko Support 22/2
Disassembling
-- Remove the grooved ball bearing locking ring.
Removing the Grooved Ball Bearing
-- Remove the locking ring from the input shaft beforehand.
-- Install the thrust pad 16.5/28 mm dia. VW 431 and the thrust piece 40-105 on the input shaft before installing the puller.
-- Position the separating tool -B- in the surrounding groove inside the bearing for the locking ring.
A - Puller, for example, Kukko puller 65-160 mm 18/1
B - Separating tool 12 to 75 mm, for example, Kukko separating tool 12-75 mm 17/1
A - Separating tool 22 to 115 mm, for example, Kukko separating tool 22-115 mm 17/2
Assembling
Installing 5th Gear
The groove -arrow- on the gear must face up.
Grooved Ball Bearing Installed Position
The groove for the locking ring faces up -arrow A- and the collar -arrow B- must face the 5th gear wheel.
Installing the Grooved Ball Bearing
Grooved Ball Bearing with a Rubber Ring -arrow-
The shoulder -A- faces the thrust disc VW 412.
-- Install the grooved ball bearing securing ring on the input shaft (next illustration).
Determining the Grooved Ball Bearing Locking Ring for the Input Shaft
-- Insert a 1.86 mm locking ring -A- into groove in the input shaft and press it upward.
-- Measure the gap between the grooved ball bearing -B- and the installed locking ring -A- with a feeler gauge -C-.
-- Remove the locking ring used for the measurement.
-- Select the locking ring according to the table.
The following locking rings are available:
| Measured Value (mm) | Locking Ring Thickness (mm) | Axial Play (mm) |
|---|---|---|
| 0.01 ••• 0.05 | 1.86 | 0.01 ••• 0.05 |
| 0.05 ••• 0.07 | 1.89 | 0.01 ••• 0.05 |
| 0.07 ••• 0.10 | 1.92 | 0.01 ••• 0.05 |
| 0.10 ••• 0.13 | 1.95 | 0.01 ••• 0.05 |
| 0.13 ••• 0.16 | 1.98 | 0.01 ••• 0.05 |
-- Compress the cylindrical roller bearing locking ring -arrow- with pliers -C- and remove it.
A - Counter support, for example, Kukko support 22/2
B - Internal puller 30 to 37 mm, for example, Kukko extractor 30-37 mm 21/5
-- Compress the cylindrical roller bearing locking ring -arrow- with pliers -C- and install it.
-- Remove the pliers before the cylindrical roller bearing gets into its installed position. The locking ring must lock into the groove on the clutch housing.