volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Automatic gearbox, gears, control > < Adjusting 2nd and 4th gear brake -B2-
Automatic gearbox 001
Dismantling and assembling gearbox
Adjusting clutch play
 
N37-0606
  • ‒ To adjust clutch play, install components without axial needle bearing -item 37-123 .
  • ‒ Adjusting clutch play between -K1- and AT pump
  • ‒ Adjusting clutch play between -K2- and ATF pump => Page 37-160
  • ‒ Perform check measurement (clutch play)
  • Gearbox housing
    • ◆ Planetary gearbox installed up to small input shaft => assembling planetary gearbox, Page 37-123
  • 1st to 3rd gear clutch -K1- with turbine shaft
 
N37-0606
  • Axial needle bearing with washer
    • ◆ Observe installation position
    • ◆ Do not install when adjusting clutch play
  • Reverse gear clutch -K2-
  • Shim
    • ◆ Do not install when adjusting clutch play
  • Gasket
    • ◆ For ATF pump
  • ATF pump
  • Bolt, 20 Nm
 
N37-0607

Adjusting clutch play between -K1- and ATF pump

→ Calculate thickness for the axial needle bearing -A-

The thickness of the axial needle bearing is determined by the gap "x" and is to be selected from the table, => Page 37-159 .

Gap x = a - b

A - Axial needle bearing (not installed when performing measurement).

D - Gasket

1 - ATF pump

2 - Reverse gear clutch -K2-

3 - 1st to 3rd gear clutch -K1-

 
N37-0608

4 - Gearbox housing

Calculating "a":

  • ‒ → Place straightedge "A" onto gearbox housing.
  • ‒ Measure distance to -K1- using a depth gauge "B".

Example:

Reading 1 = 54.8 mm

  • ‒ Place gasket "C" on pump flange of the gearbox housing.
 
N37-0597
  • ‒ → Measure with depth gauge "B" to pump flange on gearbox housing.

Example:

Reading 2 = 23.2 mm

Measured value 1

=

54.8 mm

- Measured value 2

=

- 23.2 mm

Calculated figure a

=

31.6 mm

Calculating "b":

 
N37-0598
  • ‒ → Place straightedge "B" on pump housing.
  • ‒ Measure with depth gauge "A" to pump flange.

Example:

Measured value

=

33.8 mm

- Straightedge

=

- 5.7 mm

Calculated figure b

=

28.1 mm

Gap x = a - b

= 31.6 mm - 28.1 mm = 3.5 mm

  • ‒ Ascertain thickness of the axial needle bearing according to table and determine Part No. from parts catalogue.

Table of "Axle needle bearings":

Gap "x" (mm)

Axle needle bearings (mm)

2.95 ... 3.14
3.15 ... 3.34
3.35 ... 3.54
3.55 ... 3.74
3.75 ... 3.94
3.95 ... 4.14

2.70
2.90
3.10
3.30
3.50
3.70

 
N37-0611

Adjusting clutch play between -K2- and ATF pump

→ Calculate thickness of shim -B-

Shim thickness is determined by gap "y" and selected from table, => Page 37-163 .

Gap y = c + d

B - Shim (not installed when performing measurement).

D - Gasket

1 - ATF pump

2 - Reverse gear clutch -K2-

3 - 1st to 3rd gear clutch -K1-

 
N37-0599

4 - Gearbox housing

Calculating "b":

  • ‒ → Place straightedge "A" onto pump housing.
  • ‒ Measure with depth gauge "B" to pump housing.

Example:

Reading 1 = 34.0 mm

 
N37-0598
  • ‒ → Measure with depth gauge "A" to pump flange.

Example:

Reading 2 = 33.8 mm

Measured value 1

=

34.0 mm

- Measured value 2

=

- 33.8 mm

Calculated figure c

=

0.2 mm

 
N37-0600

Calculating "d":

  • ‒ → Place straightedge "A" onto gearbox housing.
  • ‒ Measure to collar of the reverse gear clutch -K2- with depth gauge "B".

Example:

Reading 1 = 88.5 mm

 
N37-0597
  • ‒ Place gasket "C" on pump flange of the gearbox housing.
  • ‒ → Measure with depth gauge "B" to pump flange on gearbox housing.

Example:

Reading 2 = 23.2 mm

Measured value 1

=

24.7 mm

- Measured value 2

=

- 23.2 mm

Calculated figure d

=

1.5 mm

Gap y = c + d

= 0.2 mm + 1.5 mm = 1.7 mm

  • ‒ Ascertain thickness of shims according to table and determine Part No. from parts catalogue.

Table of "Shims":

Gap "y" (mm)

Shims (mm)

1.35 ... 1.54
1.55 ... 1.74
1.75 ... 1.94
1.95 ... 2.14
2.15 ... 2.34
2.35 ... 2.54
2.55 ... 2.74
2.75 ... 2.94

0.80
1.00
1.20
1.40
1.60
1.80
2.00
2.20

  • ‒ After installing the ATF pump perform a check measurement of the clutch play .

Check measurement (clutch play)

  • ‒ The clutch play cannot be measured until the ATF pump has been installed.
  • ‒ Attach dial gauge holder to gearbox housing and place dial gauge on turbine shaft with a preload of 1 mm.
 
N37-0601
  • ‒ → Move turbine shaft up and down and read play on dial gauge.
  • Play:
  • min. = 0.25 mm
  • max. = 0.55 mm

Automatic gearbox, gears, control > < Adjusting 2nd and 4th gear brake -B2-