1. Registration trouble? Please use the "Contact Us" link at the bottom right corner of the page and your issue will be resolved.
    Dismiss Notice

Grabby Clutch with AA Chain

Discussion in 'Early CJ5 and CJ6 Tech' started by tgregg, Dec 6, 2006.

  1. tgregg

    tgregg Member

    My clutch (new 200 miles ago) is very grabby making it hard in very technical stuff. Anybody experience that with the Advanced Adapter Chain? The clutch is pretty much in or out with not as much ability to feather it as I would like. A part of the problem is gear ratio's. I have 4:88's and 16 forward gears so I tend to be in a very low gear which aggrevates the situation. If I shift up to a higher gear I can slip the clutch better but it still seems too abrupt to me.
     
  2. Posimoto

    Posimoto Hopeless JEEP Addict

    If you are using a diaphram type pressure plate (clutch cover) that seems to be a common complaint. I doubt that it has anything to do with the AA chain setup. Could also be a little oil contamination on the clutch disc. Do you have the tell-tale oil drip from the bottom of the bell housing? Rear mains are notorious for leaking on the Dauntless.
     
  3. lynn

    lynn Time machine / Early CJ5 HR Rep Staff Member

    Gregg, I noticed the same thing after I installed my AA chain. It's especially bad after the clutch get wet (deep crossing) or dirty/wet (deep wet mud hole). Sometimes it stays grabby for weeks, depending on how much I drive it). During those times, pulling out in 1st smoothly with my T18, even in high range, is more like a "launch" than a pull-out. No matter how smooth you are with your leg, one second not moving, next second launched! It does eventually smooth out. :rofl:
    I think it's about 60% changing the wear pattern on the clutch, and 40% retraining your left leg :D
     
  4. tgregg

    tgregg Member

    Thanks, that is exactly the freedback I needed! Like sex, practice, practice, practiceR)
    Since I never drove it with the old setup I wasn't sure if I had put it together right. Motor, clutch, trans and T/C are all newly rebuilt and really need to get some break in-mileage. I suspect.
     
  5. jeepdaddy2000

    jeepdaddy2000 Active Member

    One thing you can try is to lower the ratio. If you have a hole in your pedal below(closer to the shaft) the one you are using, might try the clevis there. This will cause you to use more pedal throw to obtain the same movement at the fork. Just be careful as the clutch might not disengage all the way.
     
  6. AKCJ

    AKCJ Active Member

    I've had the same problem but I don't have the AA chain.

    Now that I think about it, sometimes it's much worse than others - maybe it's the water, mud, oil thing.

    I think the root of the problem is the setup on the fork, ball pivot, and throwout bearing - plus the rest of the linkage. There's some discussion of this on the Novak site.

    I sure would like to try a fork that is longer on the outer end . . . .
     
  7. tgregg

    tgregg Member

    Interesting thought. The pivot shaft for my pedals is shot and needs to be removed and rebushed so that might be a good time to change that ratio. Has anybody tried something like that?
     
  8. jeepdaddy2000

    jeepdaddy2000 Active Member

    I run a bellcrank style cluch linkage attached to the frame. The pedal action was way too "fast" and needed attention when using it. My pedal arm had a second hole below the one being used. I moved the linkage to the lower hole and readjusted the free pedal. The engagement was much smoother and "slower". I am much happier with the engagement now.
     
  9. lynn

    lynn Time machine / Early CJ5 HR Rep Staff Member

    On the AA set up, my chain is attached to the "ear" on the pedal cross shaft, not to the pedal the way the stock cable set up was.
     
  10. tgregg

    tgregg Member

    Mine is to an ear over by the brake pedal too. But I'm thinking that when I take the peday assembly down to redo it I'll try drilling another hole below the existing one to slow the action down. Has anybody tried anything like that?
    I sure wish I could figure out how to do those little pictures you guys attach. I've tried everything that I've read and had suggested and I still end up with the pictures ending up WAY too big even if I could get it to accept them.
     
  11. jzeber

    jzeber Well-Known Member 2022 Sponsor

    I just replaced my pivot shaft with one from Krage. The new shaft has the "ear" attached, old one did not have it. Thinking about going with the AA kit also. I made a cable and pulley system but when I get real twisted up the cable jumps off the pulley and then frays.
     
  12. lynn

    lynn Time machine / Early CJ5 HR Rep Staff Member

    I did the same Jeff. If you're still planning, get a pedal shaft mount from an M38A1, it has a bushing that can be replaced. I wish I knew about it before I bought the kind of crappy repro units. I think Krage has these as well, maybe Carl Walck too.
    I haven't had any problems with binding of the AA chain set up when twisted, but I've heard some who have. It may bind... but it won't slip off or fray, so you'll still be ahead :)