Clutch won’t adjust

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by dillydog24, Aug 3, 2021.

  1. msh

    msh Light Load Member

    159
    110
    Jul 18, 2021
    Los Angeles, CA
    0
    feldsforever and Rideandrepair Thank this.
  2. Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.

  3. dillydog24

    dillydog24 Light Load Member

    63
    53
    Jun 8, 2020
    0
    What happens if I remove the two bolts holding the adjustment bolt?
     
  4. Goodysnap

    Goodysnap Road Train Member

    3,502
    8,384
    Jul 12, 2017
    0
    You will remove the adjuster. The adjuster just has a gear that turns the adjusting wheel inside the clutch. The adjuster is replacable seporate, but they dont often fail. Your issue is most likely deeper.
     
    feldsforever, msh and Rideandrepair Thank this.
  5. dillydog24

    dillydog24 Light Load Member

    63
    53
    Jun 8, 2020
    0
    Okay! Thank you!
     
    feldsforever and Goodysnap Thank this.
  6. Rideandrepair

    Rideandrepair Road Train Member

    16,526
    53,944
    Aug 8, 2015
    0
    I was having the exact same isssue. Checked the adjuster, it was good. My Linkage had gotten all out of wack, adjustment wise. I kept screwing around with it, keeping it working. When I finally replaced the Clutch, it was completely worn out. Barely any friction on 1/3 of the disc. Surprised it wasn’t slipping more. Had to baby it home. Might want to look at Eaton new clutch adjustment procedure. Start from scratch. Adjusting the clutch to spec. You can back it off also. Once clutch is adjusted with 1/2” gap, check freeplay. Might need to adjust linkage to get 1/4” gap at fork, for proper freeplay. I did this a couple times, after having linkage problems, due to motor mounts being bad. That’s on my Freightliner. Different set up I believe than Pete’s. It’s worth a shot. Twice I had no clutch and no freeplay. Thought for sure clutch was shot. After messing around with it, I’d find a happy spot. Clutch would work fine, though my 1/2” gap was way too much. Maybe they didn’t set it up right, or changed some linkage parts, and adjusted clutch to match, instead of adjusting linkage to match the clutch. That was my mistake. Changed a linkage part, then adjusted clutch to match. Ended up over adjusting clutch, which lessens the clamping force, and will cause it to slip.
     
    Last edited: Aug 4, 2021
    feldsforever and msh Thank this.
  7. dillydog24

    dillydog24 Light Load Member

    63
    53
    Jun 8, 2020
    0
    Update: took the adjuster bolt off, found that half the teeth are missing off the bolt and the teeth on the ring are rounded off where the adjuster sits. My guess some one tried to adjust it without the pedal pushed in?
     
    Rideandrepair and feldsforever Thank this.
  8. feldsforever

    feldsforever Road Train Member

    1,453
    1,440
    Nov 22, 2019
    0
    I'm glad you did that before running to a shop. What's next, as in what does that connect too? Could the searing of the teeth affect the next piece?
     
    Rideandrepair Thanks this.
  9. Rideandrepair

    Rideandrepair Road Train Member

    16,526
    53,944
    Aug 8, 2015
    0
  10. spsauerland

    spsauerland Road Train Member

    4,296
    10,879
    May 31, 2010
    West Harrison, In
    0
    Go old school and try to turn adjuster ring with a bar. You probably still need a new clutch.
     
    haycarter, Goodysnap and msh Thank this.
  11. dillydog24

    dillydog24 Light Load Member

    63
    53
    Jun 8, 2020
    0
    Indicator tab shows about ¾ of life left. The ring inside was seized. Took a air chisel and hammered the clutch housing. And used a pry bar to turn the ring inside the clutch. We had to get the engine turned over just right so we could get the bar in there. Now that we have good teeth in view I’m going to replace the adjuster bolt that way next time I can use it like your supposed too. (Famous last words). Any one know where you could get just the bolt?
     
  • Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.