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348 rear brakes not releasing pressure

Discussion in '348/355' started by juhani, Mar 10, 2015.

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  1. juhani

    juhani Karting

    Aug 28, 2012
    71
    Helsinki, Finland
    Full Name:
    Juhani
    #1 juhani, Mar 10, 2015
    I have this problem with my 348 Spider rear brakes that rear brake pressure is not properly released after breaking. Pressure drops slowly and pads keep in touch with discs for a long time, so rear pads wear out quickly. I've been checking the workshop manual and I think possible failures could be return valve / delay valve / breaking corrector. Does anyone have experience on this kind of rear brake behavior and what could be the most likely cause for it?
     
  2. 2NA

    2NA F1 World Champ
    Consultant Owner Professional Ferrari Technician

    Dec 29, 2006
    18,221
    Twin Cities
    Full Name:
    Tim Keseluk
    #2 2NA, Mar 10, 2015
    Last edited by a moderator: Sep 7, 2017
    It's likely that the brake hoses are swelled internally. A common problem in 20+ year old cars.

    There isn't usually any outward sign.
    Image Unavailable, Please Login
     
  3. juhani

    juhani Karting

    Aug 28, 2012
    71
    Helsinki, Finland
    Full Name:
    Juhani
    #3 juhani, Mar 11, 2015
    That would make sense, I'll have to check the lines!
     

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