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Clutch Plate- Am I Actually This Stupid?

Discussion in 'Early CJ5 and CJ6 Tech' started by Howard Eisenhauer, Jan 22, 2023.

  1. Jan 22, 2023
    Howard Eisenhauer

    Howard Eisenhauer Administrator Staff Member

    Tantallon, Nova...
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    So one day back in the spring I started Tonk up I had a godawful screeching noise coming out of the engine bay someplace o_O I popped the hood up & there were sparks shooting out of the bellhousing :shock:.

    Silly me I figured it was my 200 mile useage throwout bearing.

    Silly me. :(

    I just lived with it during the summer.

    Got around to pulling the engine out today & surprise surprise the bearing is fine :confused:


    Dug a little deeper-

    Disk reversal_20230122_170942_sm.jpg

    Disk reversal_20230122_171001_sm.jpg

    What's left of the missing spring-

    Disk reversal_20230122_171349_sm.jpg

    Disk reversal_20230122_172812_sm.jpg

    I remember thinking real hard about which way the disk goes in when I put it together and thought I had a good reference telling me the raised part goes towards the engine but apparently I'm an idiot :steamed:

    What I don't understand is why it was working so well before it let go- the clutch disk won't even touch the flywheel now without the center rubbing the bolts. :(
     
    fhoehle, Glenn and Twin2 like this.
  2. Jan 22, 2023
    Frogfarm

    Frogfarm 1978 CJ5 2023 Sponsor

    Cottage Grove, OR
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    It takes a real man to admit his errors to the world even after he calls himself an idiot!
    When I find things like this I love putting them in the memory bank to give a base on how screwed up something can be and still work.
     
  3. Jan 22, 2023
    Howard Eisenhauer

    Howard Eisenhauer Administrator Staff Member

    Tantallon, Nova...
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    or a real idiot.
     
  4. Jan 22, 2023
    jeepstar

    jeepstar Well-Known Member 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Sheboygan
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    It's 2023...can't we figure out a way to write "engine side" on one side!??
     
    fhoehle, Mark T. and Frogfarm like this.
  5. Jan 22, 2023
    Oldpappy

    Oldpappy A.C. Fults - Curmudgeon at large 2022 Sponsor

    East Tennessee
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    The up side of this is you won't likely do it again :bananatool:

    Most of us have done stupid before, the only difference is most of us won't admit it.
     
    fhoehle, Ol Fogie, dozerjim and 3 others like this.
  6. Jan 22, 2023
    Jw60

    Jw60 Sitting up n buckled down. 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Sedalia MO.
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    Mine has "flywheel side" etched on it... must be a chevy thing.

    Howard was there just enough meat on the disk for the springs to clear on install but wear enough to not clear soon after?
     
    fhoehle, Walt Couch and jeepstar like this.
  7. Jan 23, 2023
    Rick Whitson

    Rick Whitson Detroit Area 2024 Sponsor 2022 Sponsor

    I live South of...
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    You are an Honest Man Howard, that takes guts. Anyone that says they never done something like that is not telling the real truth. We have all made mistakes.
     
    fhoehle, Ol Fogie, Dandy and 4 others like this.
  8. Jan 23, 2023
    Howard Eisenhauer

    Howard Eisenhauer Administrator Staff Member

    Tantallon, Nova...
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    That's my current theory dammit.
     
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  9. Jan 23, 2023
    Oldpappy

    Oldpappy A.C. Fults - Curmudgeon at large 2022 Sponsor

    East Tennessee
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    Last time I installed a new clutch the fork got bumped when I raised the gear box into position. I didn't notice that the pivot ball had been popped out of its socket until I had all the bell housing bolts tightened up.

    After I unbolted it and dropped it back down to fix it I glued that little sucker in there with Permatex Aviation sealer.
     
    fhoehle and Ol Fogie like this.
  10. Jan 23, 2023
    Oldpappy

    Oldpappy A.C. Fults - Curmudgeon at large 2022 Sponsor

    East Tennessee
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    Noticed the crankshaft bolts on yours, with two bolts larger than the others. I noticed this on an engine I am working on and wondered whether it was stock or a Bubba fix. Most of my experience with these is with older flat fender Jeeps, which have the tapered dowel bolts. Seeing the same thing on yours as I found on the engine I am talking about gives me hope it is just a later feature.
     
  11. Jan 23, 2023
    Howard Eisenhauer

    Howard Eisenhauer Administrator Staff Member

    Tantallon, Nova...
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    That's a factory suggested "fix", tapered pins are factory original, straight are is a sign of a rebuilt crank. There's a procedure in the FSM for installing the straight pins.

    upload_2023-1-23_17-57-39.png
    upload_2023-1-23_17-59-16.png
     
    fhoehle, Ol Fogie and oblvnnwtnjhn like this.
  12. Jan 23, 2023
    Oldpappy

    Oldpappy A.C. Fults - Curmudgeon at large 2022 Sponsor

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    Thanks, that solves the mystery I had been pondering. So, it is not really a "Bubba" fix, but an accepted alternative to the tapered dowel pins.
     
  13. Jan 23, 2023
    nickmil

    nickmil In mothballs.

    Happy Valley, OR
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    Installing the clutch disc backwards is much more common than you would think.
     
    fhoehle likes this.
  14. Jan 23, 2023
    Oldpappy

    Oldpappy A.C. Fults - Curmudgeon at large 2022 Sponsor

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    Yes, but you only do it once.
     
  15. Jan 23, 2023
    PeteL

    PeteL If it wasn't for physics, and law enforcement... 2024 Sponsor 2023 Sponsor 2022 Sponsor

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    And so I would think by now there would be a built-in fail-safe way of preventing it. :crazy:
     
    Ol Fogie and dozerjim like this.
  16. Jan 23, 2023
    liquids

    liquids Old Member

    Detroit-ish
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    My motto is "never make the same mistake three times." I give myself extra leeway.
     
    fhoehle, Ol Fogie, Dandy and 9 others like this.
  17. Jan 23, 2023
    PeteL

    PeteL If it wasn't for physics, and law enforcement... 2024 Sponsor 2023 Sponsor 2022 Sponsor

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    The great thing about mistakes is that there is never any shortage of new ones.
     
    Ol Fogie, Dandy, dozerjim and 3 others like this.
  18. Jan 23, 2023
    Oldpappy

    Oldpappy A.C. Fults - Curmudgeon at large 2022 Sponsor

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    Pete,
    "And so I would think by now there would be a built-in fail-safe way of preventing it."

    That sounds more like something someone from California would think
     
    Ol Fogie, Norcal69 and nickmil like this.
  19. Jan 23, 2023
    nickmil

    nickmil In mothballs.

    Happy Valley, OR
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    Reading the disc where it says “flywheel side”. Paying attention to how the old one came out. Reading the factory service information. Purchasing a basic automotive textbook and reading it. Bottom line, mistakes happen. There are NO failsafes in automotive which is where experience and research comes into play.
     
    Ol Fogie likes this.
  20. Jan 24, 2023
    PeteL

    PeteL If it wasn't for physics, and law enforcement... 2024 Sponsor 2023 Sponsor 2022 Sponsor

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    Ouch.
     
    Stakebed likes this.
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