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Another 1971 Clutch/throw Out Bearing Question

Discussion in 'Early CJ5 and CJ6 Tech' started by RedWing, Sep 15, 2021.

  1. Sep 15, 2021
    RedWing

    RedWing Member

    Sutton Bay
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    I purchased a new Luk clutch Kit and of course the supplied TO Bearing is way to short. After reading numerous threads on this issue, have a couple questions I’m hoping you guys can help me with.

    In one post, members have used clutch kits not specifically for Jeep’s, but with higher spring distances (need less travel for TO Bearing). Am I better off ordering a different clutch kit or just going with a longer bearing? I will need to go with a bearing close to two inches.

    second question is, can anyone confirm the length of the bearing release arm? My pedal has always been difficult to push in. I’m wondering if I’ve got the wrong arm that is short and maybe requiring more effort to move the TO Bearing?

    as always thanks for all your help.
     
  2. Sep 15, 2021
    oldtime

    oldtime oldtime

    St. Charles,...
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    OAL of the standard release arm is 8-1/2”.
    It will be far cheaper to buy a new release bearing than a new cover plate assembly.
     
    Last edited: Sep 15, 2021
  3. Sep 15, 2021
    RedWing

    RedWing Member

    Sutton Bay
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    Thanks! I’m picking up a longer TO Bearing in the morning. Sounds like I have the correct arm. I went with the premium cable from in line tube, works a bit smoother, but still requires plenty of effort to push in the clutch
     
  4. Sep 15, 2021
    Twin2

    Twin2 not him 2022 Sponsor 2021 Sponsor 2020 Sponsor

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    pressure plate is it diaphragm or 3 finger type
     
  5. Sep 15, 2021
    RedWing

    RedWing Member

    Sutton Bay
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    pits a Luk diaphragm clutch.
     
  6. Sep 15, 2021
    Twin2

    Twin2 not him 2022 Sponsor 2021 Sponsor 2020 Sponsor

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    just asking . cause the whole time I ran the T14 with a deep bell
    the only one that would release was the 3 finger 9 spring
    pedal pressure is some-what hard but bearable
    taller throw out bearing might do the trick
     
  7. Sep 15, 2021
    RedWing

    RedWing Member

    Sutton Bay
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    I’m hoping, it the biggest bearing I coul find. 1 15/16’s
     
  8. Sep 16, 2021
    RedWing

    RedWing Member

    Sutton Bay
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    Well, the throw out bearing is about the same size as what I had, so not much difference.
    Do you recall the part number of the three finger you used? Think I’ll go this route.
     
  9. Sep 16, 2021
    Twin2

    Twin2 not him 2022 Sponsor 2021 Sponsor 2020 Sponsor

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    I can only suggest contact 46ODDFIRE
    he's a member here and did his clutch last year or before
    I went out and looked there are no part number on pressure plate I have
     
  10. Sep 16, 2021
    RedWing

    RedWing Member

    Sutton Bay
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    Thanks for checking. I’ll reach out to him.
     
  11. Sep 16, 2021
    OzFin

    OzFin Vintage Jeep Guy

    Michigan
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    You have a T14 or T 15?


    Here is what I used with the 225 V6 and T14 combination.
    [​IMG]

    The bearing supplied with the kit.
    [​IMG]

    I used a longer pivot stud which creates a different fork angle for better leverage.
    [​IMG]
    JEGS 601020: Clutch Pivot Ball Stud Most 1979-91 GM Cars - JEGS High Performance

    Here is the difference in the fork angle.
    Stock pivot stud.
    [​IMG]

    Longer pivot stud.
    [​IMG]

    This combination has worked very well together. Mine is installed on a 70 Jeepster/Commando, but the 225 / T14 engine/ bell housing/transmission is exactly the same as the CJ5 with the same, T15 may differ.
    You could also go with a hydraulic master / slave setup for easier clutch action too.
     
  12. Sep 16, 2021
    RedWing

    RedWing Member

    Sutton Bay
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    My transmission is the T-14, 1971.

    Thank you so much for checking into this. This is the same Luk kit I’m trying. I think the main issue is that the bell housing used in 1971 is longer which causes the throw out bearing length to be increased. I currently have the largest bearing and ball stud I can find and just come up a bit short on the throw. I’m wondering if the clutch pressure plates with three fingers are deeper, which would bring every thing closer together.

    What year is your Jeep?
     
  13. Sep 16, 2021
    RedWing

    RedWing Member

    Sutton Bay
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    Sorry, just noticed you said 70 Commando, neat Jeep!
     
  14. Sep 17, 2021
    Twin2

    Twin2 not him 2022 Sponsor 2021 Sponsor 2020 Sponsor

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    yep
    borg & beck 3 finger is taller
    both just sitting on floor
    CAM00564.jpg
     
    OzFin likes this.
  15. Sep 17, 2021
    RedWing

    RedWing Member

    Sutton Bay
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    That’ a big difference and will take care of my issue. Thank you soooo much for taking the time to take this shot and post it!!! Now to find a Borg and Beck type that will fit.

    does the one in the picture have any part numbers on it?
     
  16. Sep 17, 2021
    jackdog

    jackdog Member 2021 Sponsor 2020 Sponsor

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    Went thru this hell. Here is the thread.
    Clutch Woes
     
  17. Sep 17, 2021
    RedWing

    RedWing Member

    Sutton Bay
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    ha, Woes is putting it nicely, laugh Out Loud. Thanks for the thread link!
     
  18. Sep 17, 2021
    oldtime

    oldtime oldtime

    St. Charles,...
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    All original Dauntless clutches were Borg Beck.
    The # 948692 diaphragm type Borg Beck was used prior to 1970. Then they went to the slightly heavier pressure three finger type Borg Beck #994843.
    These two different types of pressure plate assemblies used different types of release bearings too.
    The 10.5” Borg Beck driven disk did not change.
    Aftermarket three finger clutches ( mistakenly called Borg Becks) are frequently built with too many springs for typical Jeep applications….

    I sold my oem 3 finger type clutch to a member here but I do still have an original Borg Neck diaphragm type available.
    I probably have some oem nos driven disks too …
     
  19. Sep 17, 2021
    oldtime

    oldtime oldtime

    St. Charles,...
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    The original diaphragm fingers are 2-5/16” high.
    [​IMG]
     
  20. Sep 17, 2021
    RedWing

    RedWing Member

    Sutton Bay
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    Thanks for posting.
     
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