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Technical Does anyone See a problem using this clutch.

Discussion in 'The Hokey Ass Message Board' started by wheeltramp brian, Sep 18, 2023.

  1. wheeltramp brian
    Joined: Jun 11, 2010
    Posts: 3,329

    wheeltramp brian
    Member

    Clutch slipping terribly bad, pulled it apart And found this setup in it. It's just a 10 and a 1/2 inch Diaphragm clutch with the GM spine input shaft. Got a factory replacement one here, and the height of the fingers is different heights and the opening is a different size. Does anybody see a problem using this? It has a hydraulic throw out bearing which I can adjust to take up the height. The green one has a height of 2 and 3/4 of an inch and the new steel one has a height of 2 and 5/8" 20230918_102757.jpg 20230918_102807.jpg 20230918_102811.jpg 20230918_102822.jpg 20230918_102828.jpg .
     
    chryslerfan55 likes this.
  2. Hmmm, looks kinda shifty. He he.
     
  3. Johnny Gee
    Joined: Dec 3, 2009
    Posts: 14,249

    Johnny Gee
    Member
    from Downey, Ca

    All things considered, no.
     
  4. Glenn Thoreson
    Joined: Aug 13, 2010
    Posts: 1,017

    Glenn Thoreson
    Member
    from SW Wyoming

    If the fingers are not the same height, send it back. It will cause you problems if you use it. What car did the transmission come out of? That looks like it could be a Ford spline on the input shaft. Count the splines on it and measure the diameter of the shaft and order a clutch plate to match. Make sure the pilot bearing is correct for the end of the shaft and the flywheel. Your pictures show two completely different pressure plates. It would help to know what your intended application is.
     
  5. wheeltramp brian
    Joined: Jun 11, 2010
    Posts: 3,329

    wheeltramp brian
    Member

    Yes, they are 2 completely different brand pressure plates, but the same types. They are both a diaphragm type and 10 and a 1/2 inch. The transmission is a tremec T5 with the Chevy 1 and 8 inch by ten input shaft. It has an adjustable hydraulic throwout bearing so that can be adjusted to fit the lower pressure plate. This is in a 29 Ford roadster with a 327 but I would rather not share the pic as the wheels make this thing horribly off-topic.
     
    Johnny Gee likes this.
  6. Johnny Gee
    Joined: Dec 3, 2009
    Posts: 14,249

    Johnny Gee
    Member
    from Downey, Ca

    Take the new disc and use it to bolt both old and new pressure plate to flywheel. Measure fingers then and see what comes of it.
     
    sdluck, jaracer, sunbeam and 3 others like this.
  7. wheeltramp brian
    Joined: Jun 11, 2010
    Posts: 3,329

    wheeltramp brian
    Member

    I'll do that I have to go pick up the flywheel. That's getting resurfaced at 1 o'clock. And then I can do that.
     
  8. Are those kevlar pucks on the old disc ?, might easier to push in the pedal as I bet the springs are different (fingers and disc).......might not even know it because of the hyd t/o setup. I think it will fit ok, but not be as grippy.
     
  9. wheeltramp brian
    Joined: Jun 11, 2010
    Posts: 3,329

    wheeltramp brian
    Member

    I put the new clutch disk on the flywheel and bolted each pressure plate on and measured and there is an eighth of an inch difference in height. So I don't think it's a big deal as I can adjust the throw out bearing to make it all work.
     
  10. Oneball
    Joined: Jul 30, 2023
    Posts: 1,597

    Oneball
    Member

    With respect of the slave. Make sure your bleed line comes out the top. And ensure that the threaded adjuster has some locking device.
     
  11. wheeltramp brian
    Joined: Jun 11, 2010
    Posts: 3,329

    wheeltramp brian
    Member

    Yes Sir, the bleed line comes out of the top, and the thread of the adjuster does have a stop.
     
    Oneball likes this.
  12. 427 sleeper
    Joined: Mar 8, 2017
    Posts: 3,357

    427 sleeper
    ALLIANCE MEMBER

    I'm surprised that the flat faced bearing didn't tear up the flat finger's on the pressure plate. Flat finger P/P's usually have a round faced bearing and the bent finger P/P's, like the new one, have a flat faced bearing, like you have there. If you can adjust for the difference, there shouldn't be an issue with the finger height.
     
    slayer likes this.
  13. wheeltramp brian
    Joined: Jun 11, 2010
    Posts: 3,329

    wheeltramp brian
    Member

    So I've got the clutch in and the bellhousing bolted on everything. Measured The distance and got my numbers and went to adjust the throwout bearing But the threads are too long on the input shaft collar And when you go to tighten it, the threads bottom out on the bearing and push it out.. It looks as though somebody pressed this threaded piece onto the input shaft, so I'm gonna have To take the collar and put it in the lathe 20230918_161327.jpg and take some threads off.
     

    Attached Files:

  14. wheeltramp brian
    Joined: Jun 11, 2010
    Posts: 3,329

    wheeltramp brian
    Member

    It turns out this is some homemade job. As the 2 different colored threads on the shaft are 2 pieces and have been pressed on. And I can see evidence of red lock****e.
     
    Tman likes this.
  15. 2OLD2FAST
    Joined: Feb 3, 2010
    Posts: 6,056

    2OLD2FAST
    Member
    from illinois

    Mechanical or cable linkage is so simple & never leaks !
     
    bobss396 likes this.
  16. gene-koning
    Joined: Oct 28, 2016
    Posts: 5,660

    gene-koning
    Member

    Or an outside of the bell slave cylinder like Dodge used from the 90s on.
     
    Hellbentrodder and bobss396 like this.
  17. bobss396
    Joined: Aug 27, 2008
    Posts: 18,698

    bobss396
    Member

    I use one on my car, but guys who I talk with that use one inside the bell say to use a top-quality one.
     
  18. wheeltramp brian
    Joined: Jun 11, 2010
    Posts: 3,329

    wheeltramp brian
    Member

    By searching the internet last night, it seems that these threaded sleeves just have an o-ring that are pushed over the collar so it appears that I have 2 of these sleeves stacked up .hopefully when I get to work I can just pop them off Easy enough and I will have to trim one down to make it work.
     
    Oneball likes this.
  19. wheeltramp brian
    Joined: Jun 11, 2010
    Posts: 3,329

    wheeltramp brian
    Member

    I got it all in and Gapped properly. Ended up just using one of the threaded sleeves and put it all together and checked the clearance, and it was right on. With both of these sleeves previously installed, I imagined that the clutch was engaged about an eighth of an inch or more hence 20230919_083042.jpg the reason that it was always slipping from the beginning as the previous Somebody never set it up correctly.
     
    bobss396, 427 sleeper and Johnny Gee like this.
  20. Johnny Gee
    Joined: Dec 3, 2009
    Posts: 14,249

    Johnny Gee
    Member
    from Downey, Ca

    Keep in mind which way the fingers go as the disc get’s worn and thin’s.
     
  21. wheeltramp brian
    Joined: Jun 11, 2010
    Posts: 3,329

    wheeltramp brian
    Member

    I'm aware of which way is the fingers go
     
  22. wheeltramp brian
    Joined: Jun 11, 2010
    Posts: 3,329

    wheeltramp brian
    Member

    I didn't give an update on the outcome of this job. Everything worked out great. The clutch is super smooth to engage no chatter. The previous set up definitely held pressure on the pressure plate, which led to a worn out clutch from the very beginning because of the gap was all wrong, Customers happy.
     

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