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  1. #1
    Member malcolm's Avatar
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    Aug 2012
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    Torque tube and torque converter upgrades

    Porsche models with front engine transaxles that were created in the '80s or '90s have transaxle bearings that are reaching end of life (not bad for approx. 30 years) and as such Im replacing the brgs on my '88 928 S4 as a winter project.

    The parts Im using include new Constantine brgs (far superior than the 30 YO OEM) a new drive shaft and new torque converter bearings. While the parts themselves dont amount to that much in the big scheme the project to remove the components, remove old and replace then re-install is significant as the entire transaxle needs to be removed.

    I'll update this thread as progress is made with the project as well answer any questions for like minded enthuisiasts who may contemplate a similar project.
    Last edited by malcolm; 02-04-2018 at 07:59 AM.
    '93 928 GTS 5 speed
    Polar Silver/Linen, 192k kms

    '88 928 S4 A/T
    Black/Ivory, 190k kms

    '09 Cayenne GTS Tiptronic
    Nordic Gold/Black, +270k kms

    '88 928 S4 A/T
    Red/Champange, 110k miles (US car)

  2. #2
    Hello Malcolm,
    Name:  15BE9B34-8FC4-49CC-B340-DDD6FC223E59.jpeg
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    Blacksea.com

    You did the TT on your GTS last year I believe. Did you use the Super bearing upgrade on that build? I hear it’s a real PITA to do this job like you mention as everything must come apart.

    How was doing this job? How has it held up?
    85 944/1

  3. #3
    Member malcolm's Avatar
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    Aug 2012
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    Crossfield, AB
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    hi Mike, yes I used the Black Sea Engineering superbearings, 928 design of course

    The project was a tremendous amount of work but I did it solo albeit the car was on the lift in my garage.

    Results are super smooth and quiet operation although I did use a new shaft and complete new clutch.
    '93 928 GTS 5 speed
    Polar Silver/Linen, 192k kms

    '88 928 S4 A/T
    Black/Ivory, 190k kms

    '09 Cayenne GTS Tiptronic
    Nordic Gold/Black, +270k kms

    '88 928 S4 A/T
    Red/Champange, 110k miles (US car)

  4. #4
    Member malcolm's Avatar
    Join Date
    Aug 2012
    Location
    Crossfield, AB
    Posts
    864
    update: parts from Texas and California are enroute. The superbearings are already here
    '93 928 GTS 5 speed
    Polar Silver/Linen, 192k kms

    '88 928 S4 A/T
    Black/Ivory, 190k kms

    '09 Cayenne GTS Tiptronic
    Nordic Gold/Black, +270k kms

    '88 928 S4 A/T
    Red/Champange, 110k miles (US car)

  5. #5
    Nice let me know when you start would be nice to see this job done.. I’ll come out and supervise
    85 944/1

  6. #6
    Member malcolm's Avatar
    Join Date
    Aug 2012
    Location
    Crossfield, AB
    Posts
    864
    pictures of new torque tube bearings and new shaft:
    Attached Images Attached Images    
    Last edited by malcolm; 12-26-2017 at 07:35 AM. Reason: adding pics
    '93 928 GTS 5 speed
    Polar Silver/Linen, 192k kms

    '88 928 S4 A/T
    Black/Ivory, 190k kms

    '09 Cayenne GTS Tiptronic
    Nordic Gold/Black, +270k kms

    '88 928 S4 A/T
    Red/Champange, 110k miles (US car)

  7. #7
    Member malcolm's Avatar
    Join Date
    Aug 2012
    Location
    Crossfield, AB
    Posts
    864
    the torque convertor bearings have arrived as well as the specialised bolts for the shaft clamps:
    Attached Images Attached Images  
    '93 928 GTS 5 speed
    Polar Silver/Linen, 192k kms

    '88 928 S4 A/T
    Black/Ivory, 190k kms

    '09 Cayenne GTS Tiptronic
    Nordic Gold/Black, +270k kms

    '88 928 S4 A/T
    Red/Champange, 110k miles (US car)


 

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