430 - CCM brakes: front pads dragging, how much is normal | FerrariChat
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430 CCM brakes: front pads dragging, how much is normal

Discussion in '360/430' started by Mario Andretti, Sep 19, 2023.

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  1. Mario Andretti

    Mario Andretti Formula 3
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    #1 Mario Andretti, Sep 19, 2023
    Hi all,

    I noticed that my front wheels are hard to spin by hand; and if I take the wheel off, very hard to turn the disk by hand (due to lower radius hence higher torque required to move it ) . I know some drag is normal, but how much is normal?

    Can anyone with CCM brakes confirm that they do drag a little ? My car rolls in neutral normally backwards and forwards, and I can push it myself alone on flat surface...

    I wonder if I need to rebuild the calipers and install new/ clean pistons ? Brake lines can also cause issues, I wonder if new lines would also be recommended.

    Many thanks
     
  2. clean512

    clean512 Formula 3

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    #2 clean512, Sep 19, 2023
    Sounds like a stuck piston causing the drag. Have the caiplers ever been taken apart.
     
  3. Mario Andretti

    Mario Andretti Formula 3
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    #3 Mario Andretti, Sep 19, 2023
    No, not yet... I might do it over winter. But I was wondering if *some* drag is normal, for folks with the carbon brakes.
     
  4. Rifledriver

    Rifledriver Three Time F1 World Champ

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    #4 Rifledriver, Sep 19, 2023
    Not any more than standard brakes but they have a very well deserved reputation for pistons sticking and dragging. The pistons were a bad design.
     
  5. tazandjan

    tazandjan Three Time F1 World Champ
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    #5 tazandjan, Sep 19, 2023
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  6. colorfull

    colorfull Formula 3
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    #6 colorfull, Sep 19, 2023
    I have an 08, so CCM since birth

    I don't recall any drag at all, I'll have to check next time it's up on the Quickjacks

    I think if there was drag I would have noticed

    Is it same for both wheels?
     
  7. Mario Andretti

    Mario Andretti Formula 3
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    #7 Mario Andretti, Sep 19, 2023
    Yes both wheels do the same; thanks for checking.
     
  8. Mario Andretti

    Mario Andretti Formula 3
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    #8 Mario Andretti, Sep 19, 2023
    Can I buy the caliper seals individually, when I remove at least put new pistons and seals in ?

    EDIT: Ignore me, I found the seals also in the link @tazandjan posted. Thanks.
     
  9. LorenzoR

    LorenzoR F1 Rookie
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    #9 LorenzoR, Sep 19, 2023
    You can buy 1 set at a time if you wanted. I did this last year but I rebuilt all 4 calipers
     
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  10. mike32

    mike32 F1 Veteran

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    #10 mike32, Sep 20, 2023
    I rebuilt all 4 of my CCM calipers for the same reason, remove the caliper from the disc but leave the hose connected- fit a piece of wood a little bit thinner than the disc between the pads and press the brake with engine on. Then after you let the brakes off, see if the wood comes loose- you might find the small pistons are the worst to seize. 3 out of 4 of my front small ones were that tight.
    If your are as bad as mine i had to pump them out with oil pressure, as compressed air was not enough. I have a few pics of items to help remove them.
     

    Attached Files:

  11. marc996

    marc996 Karting

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    #11 marc996, Sep 20, 2023
    I think its normal.
    Image Unavailable, Please Login My front calipers were binding a couple of years ago, I could feel it at as I stop/started. I ended up replacing all the pistons (front and back) for HE.
    Now my CCM brakes are exactly like yours, I take off all the wheels every winter to clean.
    I can push the car backwards and forwards fine, rotate the wheel, but notice as I try and rotate the brake disc u feel quite a bit of drag.
     
  12. mike32

    mike32 F1 Veteran

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    #12 mike32, Sep 20, 2023
    The pistons are a standard mm size, look up seals for motorbike calipers as a lot cheaper and big selection of sizes
     
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  13. nickorette

    nickorette Formula Junior
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    #13 nickorette, Oct 1, 2023
    I had sticking brakes (ccb) this summer. After driving in stop/go traffic for a while you could feel and hear them sticking after crawling forward slowly.

    Had a brake service done, the pads had been cracked, we also replaced fluids and changed the rubber lines, problem solved.
     
  14. Mario Andretti

    Mario Andretti Formula 3
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    #14 Mario Andretti, Oct 1, 2023
    Mines don't make any noise apart from when you apply the brakes, my fluid is always fresh and I have new Pagid RSC1 pad (for track days :) ) ... now changing the rubber lines is something I was thinking of doing. But I need to take at least one apart to see the shape of the cylinders... could be warped and that would explain why they don't retract properly.
     
  15. mike32

    mike32 F1 Veteran

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    #15 mike32, Oct 2, 2023
    Have you tried removing the caliper and clamping on a piece of wood yet ?
     
  16. Mario Andretti

    Mario Andretti Formula 3
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    #16 Mario Andretti, Oct 2, 2023
    No sorry will try this week; been busy and did not take her out since...
     

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