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6–speed TECHNICAL DESCRIPTION

 

www.getrag.de

TECHNICAL
DESCRIPTION
6
– SPEED – TRANSMISSION
233.0.0006.06
Toyota
Supra Turbo

 

1
Generals

1.1
General Features:

  • 6-speed-manual-inline-transmission

  • torque capacity 500 Nm
    (design specification); engine torque 450 Nm / 4000rpm

  • centre distance
    85 mm

  • weight
    51 kg   (without oil)

  • lubricant: 1.8 l – ATF
    ESSO Dexron D21065

  • all gears are helical, patient
    including reverse and constantly meshing

  • all gears are synchronized, view
    including reverse

  • rotor sensor for electronic
    speedo on output shaft

 

1.2
Ratios:

 

Speed

Ratio

1st

3.828

2nd

2.360

3rd

1.686

4th

1.312

5th

1.000

6th

0.794

Rv

3.281

2
Housing:

 
3-part housing

a)
clutch housing
b)
intermediate housing
c)
rear housing


Material:
Die cast aluminium  GD – Al Si 9
Cu 3

 

3        
Gearset:






This
Photo was provided by www.mkiv.co.nz

 

4)
Synchronizers:

 4.1
General
Features

  • all gears are synchronized

  • all synchronizer units on
    output shaft

  • ATF
    ESSO Dexron D21065 lubricant for synchronizers required; other lubricants
    may enable the synchronizer units and will decrease the shift comfort

 4.2
Synchronizer
1st /2nd speed:

  • type: triple cone
    synchronizer at diameter 81mm / 76mm / 70mm

 4.3
Synchronizer
3 rd /4 th speed:

  • type: double cone
    synchronizer at diameter 81mm / 76mm

 4.4
Synchronizer
5th /6th speed:

  • type: single cone
    synchronizer at diameter 84mm

 4.5
Synchronizer
Rv. speed:

  • type: single cone
    synchronizer at diameter 72mm

 5
Bearings:




input shaft
– 
clutch housing  taper roller bearing




counter shaft   –  clutch housing
–>
roller bearing


–  
intermediate housing –>
roller bearing


–  
rear housing
–>
roller bearing




output shaft
– 
ntermediate housing
–>
taper roller bearing


– 
rear housing –>
roller bearing




pilot bearing
– 
angular contact ball bearing and
 roller bearing




speed gears    –  two row roller bearings

6
Shift
Mechanism

6.1
General Features:

  • single selector shaft and
    four shift rails

  • shift travel on selector
    shaft 8.6mm

  • selector shaft supported by
    ball bearings

  • shift forks made out of
    aluminium die casting

  • neutral position in 3rd
    /4th plane

  • select angle at shift shaft
    from neutral to:

1st / 2nd plane:
6.5°

5th / 6th plane:
6.5°

Rev.
plane:
14.0°

  • reverse
    lock is done by a pull ring at the shift lever

 


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