1ST To 4TH Gear Output Shaft, Disassembling And Assembling
Special tools and workshop equipment required
- Press Plate: VW401
- Press Plate: VW402
- Press Piece - Rod: VW407
- Press Piece - Rod: VW408A
- Press Piece - Multiple Use: VW412
- Press Piece - 60mm: VW415A
- Holding Plate: VW309A
- Holding Fixture: VW313
- Transmission Support: VW353
- Press Piece - Multiple Use: VW431
- Press Piece - Multiple Use: VW433
- Press Piece - Multiple Use: VW454
- Press Piece - Multiple Use: VW512
- Press Piece - 42mm: VW516
- Press Piece - Multiple Use: VW519
- Slide Hammer Set: VW771
- Crankshaft Holding Fixture: VW801
- Press Piece - Multiple Use: 40-105
- Bearing Installer - Multiple Use: 40-20
- Bearing Installer - Differential Bearing: 40-21
- Slide Hammer - Press Plate: 2050
- Holding Fixture - Spacers: VW540/1B
- Puller - Taper Roller Bearing: VAG1582
- Puller - Taper Roller Bearing - Adapter 7: VAG1582/7
- Inductive Heater: VAS6414
- -1- Internal Puller: VAS251615 (Kukko 21/7)
- -1- Puller - Roller Bearing: VAS6775 (Kukko 21-8)
- -2- Puller: VAS251419 (Kukko 18-2)
- -3- Splitter: VAS251411 (Kukko 17-2)
- -4- Counter Support: VAS251623 (Kukko 22/2)
Dished Washer A, Removing from Output Shaft
Dished Washer, Installing in Output Shaft
Dimension "a" = 2 mm
Inner Race/Tapered Roller Bearing, Removing on Side facing Clutch Housing
A -
Splitter: VAS251411 (Kukko 17-2)
Inner Race/Tapered Roller Bearing, Installing on Side facing Clutch Housing
Outer Race/Tapered Roller Bearing, Removing from Clutch Housing
A - Counter Support: VAS251623 (Kukko 22/2)
B - Puller - Roller Bearing: VAS6775 (Kukko 21-8)
Outer Race/Tapered Roller Bearing, Installing in Clutch Housing
-- Support the clutch housing with the Bearing Installer - Multiple Use: 40-20 directly under the bearing mount.
Inner Race/Tapered Roller Bearing, Removing on Side facing Transmission Housing
Note the following before installing the Tapered Roller Bearing Puller:
-- Remove the circlip for the inner race/tapered roller bearing on the side facing the transmission housing.
-- Place the : VW431 in the output shaft and lay the : 40-105 on it.
Inner Race/Tapered Roller Bearing, Installing on Side facing Transmission Housing
-- Determine the correct circlip (refer to Fig 9) and install it.
Circlip, Determining
-- Select and install the thickest circlip that will fit.
Allocate the correct circlips. Refer to the Parts Information.
The following circlips are available:
| Thickness (mm) | |||
|---|---|---|---|
| 1.79 | 1.83 | 1.86 | 1.89 |
| 1.92 | 1.95 | 1.98 | |
Outer Race/Tapered Roller Bearing, Removing from Transmission Housing
A - : VAS251623 (Kukko 22/2)
B - : VAS251615 (Kukko 21/7)
Outer Race/Tapered Roller Bearing, Installing in Transmission Housing
-- Install the washer under the outer race.
-- Support the transmission housing under the bearing mount using the : 2050 .
Output Shaft, Disassembling
To remove the inner race/tapered roller bearing on the side facing the transmission housing. Refer to Fig 7.
-- Remove the circlip.
3rd and 4th Gear Synchronizer Hub/Locking Collar, Removing with 4th Gear Wheel
A - Puller: VAS251419 (Kukko 18-2)
B - Splitter: VAS251411 (Kukko 17-2)
-- Then remove the retaining ring -item ) OVERVIEW - OUTPUT SHAFT, 1ST TO 4TH GEARS - List Item: Retaining Ring and thrust washers -item ) OVERVIEW - OUTPUT SHAFT, 1ST TO 4TH GEARS - List Item: Thrust Washer.
-- Then remove the 1st gear wheel with synchronizer ring.
On Transmissions with Reinforcement Measures, Remove the Collared Sleeve B Together with the 1st Gear Wheel C.
A - Splitter: VAS251411 (Kukko 17-2)
-- Install the Separating Tool -A- underneath the helical-cut gear teeth on the 1st gear wheel.
1st and 2nd Gear Locking Collar and Synchronizer Hub, Removing
After removing the circlip, remove the 2nd gear wheel and locking collar/synchronizer hub together.
Output Shaft, Assembling
Heat the inner races of the tapered roller bearing and synchronizer hub to approximately 100 °C (212 °F) with the Inductive Heat Unit: VAS6414 before installing. Press on as far as the stop so there is no axial play.
Inner Friction Surface on 1st Gear Outer Race, 2nd Gear Outer Race and 3rd Gear Outer Race, Checking for Wear
-- Install the inner race -1- on the cone on the gear wheel.
-- Install the outer race -2- on the cone on the inner race. Use a feeler gauge to measure the gap dimension -a- at three places with an offset of 120°.
-- Note the average value.
| Wear limit dimension -a- | |
|---|---|
| 1st gear, 2nd gear, and 3rd gear | 0.4 mm |
Outer Friction Surface on 1st Gear Outer Race, 2nd Gear Outer Race and 3rd Gear Outer Race, Checking for Wear
-- Check the inner contact surface on the synchronizer ring -arrow- for scoring and radial wear. Replace if necessary.
-- Install the inner race, the outer race and the synchronizer ring on the cone of the inner race.
-- Press the synchronizer ring with the outer race while turning it at the same time so that synchronizer rings sit correctly.
-- Use a feeler gauge to measure the gap dimension -a- at three places with an offset of 120°.
-- Note the average value.
| Wear Limit Dimension -a- | |
|---|---|
| 1st gear, 2nd gear, and 3rd gear | 0.8 mm |
-- Install the 2nd gear assembly with the needle bearing.
2nd Gear Synchronizer Ring, Inner Race and Outer Race, Installing
-- Place the inner race -A- on 2nd gear wheel.
The tabs -1- face away from the gear wheel.
-- Install the outer race -B-.
The tabs -2- must engage in the gear wheel cut-outs -3-.
-- Install the synchronizer ring -C-.
The larger openings -4- lock in the tabs -1- on the inner race -A-.
1st/2nd Gear and 3rd/4th Gear Locking Collar and Synchronizer Hub, Disassembling and Assembling
- Spring
- Locking Piece
- Locking Collar
- Synchronizer Hub
-- Slide the locking collar over the synchronizer hub.
For the 3rd and 4th gear, the wide collar on the synchronizer hub and the locking collar face in one direction.
The notches for the locking pieces on the synchronizer hub and locking collar must line up with each other.
1st/2nd Gear and 3rd/4th Gear Locking Collar/Synchronizer Hub, Assembling
The locking collar is pushed over the synchronizer hub.
-- Install the locking pieces and springs offset by 120°. The angled end of the spring must engage into the hollow locking piece.
1st and 2nd Gear Locking Collar/Synchronizer Hub Installation Position
The identification groove -arrow 1- and the narrow collar -arrow 2- on the synchronizer hub face the 1st gear.
Warming and Installing the Locking Collar/Synchronizer Hub for 1st and 2nd Gears
The pins -A- on the synchronizer ring lock into the recesses -B- in the synchronizer hub.
-- Install the circlip.
1st Gear Inner Race, Outer Race and Synchronizer Ring, Installing
-- Install the synchronizer ring -A- into the 1st and 2nd gear synchronizer hub.
The tabs -1- lock in the openings -2- in the synchronizer hub.
-- Install the outer race -B- in the synchronizer ring.
The tabs -3- face away from the synchronizer ring.
-- Install the inner race -C- in the outer race.
The tabs -4- lock in the larger openings -5- of the synchronizer ring -A-.
Install the 1st Gear Assembly with the Needle Bearing.
- The synchronizer ring -1- and the tabs -arrow A- are inside the openings in the synchronizer hub -2-.
The pins -B arrows- in the outer race lock in the recesses -C arrows- in the gear wheel -3-.
-- Install the 1st and 4th gear thrust washers in the output shaft -item ) OVERVIEW - OUTPUT SHAFT, 1ST TO 4TH GEARS - List Item: Thrust Washer and -item ) OVERVIEW - OUTPUT SHAFT, 1ST TO 4TH GEARS - List Item: Retaining Ring.
On transmissions with reinforcement measures, install collar bushing A to stop.
- Installation position of the collared sleeve -A- : The collar -arrow- points to the 1st gear wheel.
-- Then install the 4th gear wheel with needle bearing.
4th Gear Synchronizer Ring, Checking for Wear
| -A- = Brass Synchronizer Ring | ||
|---|---|---|
| Gap Dimension -a- | Installed Dimension | Wear Limit |
| 4th Gear | 1.0 to 1.7 mm | 0.5 mm |
| -B- = Steel Plate Synchronizer Ring | ||
|---|---|---|
| Gap Dimension -a- | Installed Dimension | Wear Limit |
| 4th Gear | 1.3 to 2.4 mm | 0.8 mm |
-- Press synchronizer ring onto taper of the gear wheel and measure gap dimension -a- using a feeler gauge.
3rd and 4th Gear Locking Collar/Synchronizer Hub Installation Position
The wider collar on the synchronizer hub -arrow- faces the 3rd gear.
-- Place the 4th gear synchronizer ring on the 4th gear wheel.
Warming and Installing the Synchronizer Hub with Locking Collar for 3rd and 4th Gears
-- Turn the 4th gear synchronizer ring so that the grooves line up with the locking pieces.
-- Install the circlip.
3rd Gear Inner Race, Outer Race and Synchronizer Ring, Installing
-- Install the synchronizer ring -A- into the 3rd and 4th gear synchronizer hub.
The tabs -1- lock in the openings -2- in the synchronizer hub.
-- Install the outer race -B- in the synchronizer ring.
The tabs -3- face away from the synchronizer ring.
-- Install the inner race -C- in the outer race.
The tabs -4- lock in the larger openings -5- of the synchronizer ring -A-.
Install the 3rd Gear Assembly with the Needle Bearing.
- The synchronizer ring -1- and the tabs -arrow A- are inside the openings in the synchronizer hub -2-.
The outer race pins -B arrows- must engage in the openings -C arrows- on the gear wheel -3-.