34373750 Disassembling and assembling transmission housing

WM 343737 Disassembling and assembling transmission housing

Tools

















Technical values





Preliminary work

1. Remove transmission. -> 343519 Removing and installing transmission - section on "Removing" 34351903 Removing and installing transmission
2. Tighten the transmission using engine support 9589 or engine and gear support VW 540 at the assembly support.





Transmission on assembly support

3. Drain transmission oil. -> 340155 Changing transmission oil - section on "Draining" Removal and Replacement
4. Disassemble the transmission. -> 343537 Disassembling and assembling transmission - section on "Disassembling" 34353750 Disassembling and assembling transmission

Disassembling transmission housing





Overview of transmission housing

1) If the parts marked are replaced, re-adjustment is necessary (see -> 390815 Adjusting drive set Adjustments).





Instructions for disassembling transmission housing





Overview of transmission housing

1. Pull out taper roller bearing outer ring -8- using pressure piece 3128 and bridge VW 771/29.





Pulling out bearing

2. Press out needle-roller bearing for drive shaft -10- using drive-in mandrel VW 295 and pressure piece 40-202. -A = Schraube M10x135-





Needle-roller bearing for drive shaft

Assembling transmission housing





Overview of transmission housing

1) If the parts marked are replaced, re-adjustment is necessary (see -> 390815 Adjusting drive set Adjustments).





Instructions for assembling transmission housing





Overview of transmission housing

1. Press in needle-roller bearing for drive shaft -10- using drive-in mandrel VW 295 and pressure piece 40-202 (do not drive in!). Measurement from top edge of rule to top edge of needle-roller bearing -a = 39.5 +/- 0.3 mm-.





Measuring needle-roller bearing

2. Rim offset of sleeve for transmission vent. -a = 27 +/- 0.5 mm-





Transmission vent rim offset

3. Installation instructions for lock for 5th gear and reverse
- Insert spring -4- into plastic bushing -1- and press lightly to turn it anti-clockwise until the spring engages at the base of the plastic part.
- Position the bushing -3- on the spring in such a way that the bent end of the spring is located in the groove provided.
- Press the spring together with the bushing -3- , twist it on by turning it once anti-clockwise (to the left) until the lug of the bushing -3- is located above the groove in the plastic bushing.
- Press the lug of the bushing -3- as far as it will go into the groove of the plastic bushing -1-.
- Turn the bushing -3- clockwise (to the right) and let it go.
- Bushing -3- pops into assembly end position.





Lock assembly





- The lug -A- of the bushing for 5th gear and reverse must always be positioned as far as it will go opposite the groove -B- of the plastic bushing.





Lock assembly

Subsequent work

1. Assemble transmission. -> 343537 Disassembling and assembling transmission - section on "Assembling" 34353750 Disassembling and assembling transmission
2. Fill with transmission oil. -> 340155 Changing transmission oil - section on "Filling" Removal and Replacement
3. Remove transmission from assembly support.
4. Install transmission. -> 343519 Removing and installing transmission - section on "Installing" 34351903 Removing and installing transmission