ate calipers

Discussion in 'Airheads' started by bay, May 24, 2013.

  1. bay

    bay Adventurer

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    hi, i have swinging ate calipers on my 78 r100/7 and the pads in them rattle against the discs all the time both have the pad retaining pin and all the bolts are tight,they work really well but they make a horrible rattle when i go over cobble stones or small bumps,is this normal.also my clutch slips when the engine is warmed up and its under load ,i have replaced every thing in the clutch and the main is not leaking,any ideas folks.
    #1
  2. Kai Ju

    Kai Ju Long timer

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    You're probably missing the O-ring that goes on the pad that sits in the piston.
    Mine did the same thing until I replaced it.

    34 11 1 233 120 O-RING (to 09/80) 2 $3.38
    #2
  3. disston

    disston ShadeTreeExpert

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    Sounds like clutch adjustment. There is always a probability of oil or grease on the clutch or the thing just being worn out but most of the time it needs adjustment. You have to do it by the book. Either Clymer's or Haynes'. Do you have a manual?

    As a general rule there needs to be free play at both ends. About a nickel's worth of free play at the lever on the handle bar and the lever on the rear of the trans should make contact when it is sort of parallel to the rear of the trans. There is a measurement from the rear boss of the trans where the cable passes to the front edge of the barrel at the cable end, it is 201mm.

    BTW, you have dual brakes? Or one brake is a single caliper.

    O-ring on the moveable brake pad.
    #3
  4. trc.rhubarb

    trc.rhubarb ZoomSplat!

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    o-ring on the pad.
    I have the same problem.
    #4
  5. craydds

    craydds Long timer

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    Check your clutch adjustment as Disston has described. Take a look at http://www.youtube.com/watch?v=1oj8NMid_LU for a clutch adjustment tutorial.
    #5
  6. Dolly Sod

    Dolly Sod I want to do right, but not right now

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    I've never heard any describe ate brakes as working "really well".

    The rattle is the o ring.


    Have you tried backing off on the clutch cable tension?
    #6
  7. bay

    bay Adventurer

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    great thanks,ill give your ideas a go
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  8. GCCR

    GCCR Been here awhile

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    Thanks for posting this link. It was very useful!:clap
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  9. supershaft

    supershaft because I can

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    There is no reason to loosen adjuster nut on the tranny before you set the cable length. Adjust the cable length first and then loosen the tranny adjuster to set free play.

    Pull the clutch lever in while you tighten the tranny adjuster lock nut. That keeps your adjustment from moving while you tighten the lock nut. The tranny lock nut needs to be on the tight side or it will come loose. Good luck!
    #9
  10. craydds

    craydds Long timer

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    True... for those in the know (like supershaft). But I think it is safe to teach all to loosen everything first, then begin all the adjustments. This assumes that everything is CLEAN and LUBED - if not, take all apart and clean/lube throwout assembly and handlebar clutch lever, etc.
    #10
  11. craydds

    craydds Long timer

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    :thumb:thumb
    #11
  12. craydds

    craydds Long timer

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    Hey! After all the time and work and $$$ I've spent on my ATE's? My brakes work almost "really well". :rofl
    #12
  13. Voltaire

    Voltaire Titanium and Ceramic Hipster

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    +1 on the " almost really well " I have them on the race bike and they do the job with the mods, and I like them as they are different.
    #13
  14. supershaft

    supershaft because I can

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    As long as the play in the loosened tranny adjuster nut isn't throwing off your cable measurement and it very well could. It's opening up a can of worms that doesn't need to be opened. That's why the manual has you do it as I am suggesting. Three out of four of this type of instructional idiotnet article has some serious flaws in part or in whole. Personally, I think overall you are much better off getting some manuals. In this case the owners manual would do you a lot better.
    #14
  15. disston

    disston ShadeTreeExpert

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    I couldn't watch the whole video. I'm sorry but the idea of everybody being able to share on the internet is a wonderful idea. Now let's find some people that can make a video that holds the attention of an adult for more that 60 seconds.

    The part I watched was OK. I would guess he got the rest correct also. It's not really all that hard ya'know.
    #15