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    12-ott-2006 2.21.33

    p9972005
    Newbie
    p9972005
    Loc: CA, US
    Posts: 9, Gallery
    Registrato dal: 24-mar-2005

    Brake fluid

    My 997S is 2 yesrs old with less than 10,000 miles on it.
    Do I need to replace the brake fluid for the 2 years service?

    Tony

    12-ott-2006 5.50.46

    vtrader
    Veteran
    vtrader
    Loc: Los Angeles
    Posts: 1086, Gallery
    Registrato dal: 6-giu-2004
    In risposta a: p9972005

    Re: Brake fluid

    Yup, need to replace it. I get mine replaced in a few weeks.

    12-ott-2006 15.01.53

    MMD
    Rennteam VIP
    MMD
    Loc: usa
    Posts: 9652, Gallery
    Registrato dal: 16-dic-2004
    In risposta a: vtrader

    Re: Brake fluid

    Yes, it absorbs water (I dunno why) and the next result is brownish stains on the inner workings which are really corrosion which is slowly ruining the tolerances/precision of the _expensive-to-replace_ brake components.

    12-ott-2006 15.09.53

    Grant
    Rennteam VIP
    Grant
    Loc: Denver, CO , Stati Uniti
    Posts: 12586, Gallery
    Registrato dal: 21-ago-2002
    In risposta a: p9972005

    Re: Brake fluid

    Quote:
    p9972005 said:
    My 997S is 2 yesrs old with less than 10,000 miles on it.
    Do I need to replace the brake fluid for the 2 years service?

    Tony


    This is an easy and fun DIY if you buy a Motive power bleeder and some fluid. Total cost about $75...

    12-ott-2006 19.33.34

    964C2
    Expert
    964C2
    Loc: Dallas, TX , Stati Uniti
    Posts: 1825, Gallery
    Registrato dal: 11-mag-2004
    In risposta a: MMD

    Re: Brake fluid

    Quote:
    MMD said:
    Yes, it absorbs water (I dunno why) and the next result is brownish stains on the inner workings which are really corrosion which is slowly ruining the tolerances/precision of the _expensive-to-replace_ brake components.


    Brake fluid is hydroscopic, which means it is a substance that absorbs water from it's surroundings, in this case the humidity in the air.

    12-ott-2006 22.41.02

    Dan L
    Expert
    Dan L
    Loc: Santa Barbara, CA , Stati Uniti
    Posts: 1957, Gallery
    Registrato dal: 2-gen-2006
    In risposta a: 964C2

    Re: Brake fluid

    A hygroscopic substance readily absorbs water from its surroundings.

    (Note spelling)

    The similar sounding but unrelated word hydroscopic is sometimes used in error for hygroscopic. A hydroscope is an optical device used for making observations deep under water.



    dan

    13-ott-2006 2.28.44

    MMD
    Rennteam VIP
    MMD
    Loc: usa
    Posts: 9652, Gallery
    Registrato dal: 16-dic-2004
    In risposta a: 964C2

    Re: Brake fluid

    Quote:
    964C2 said:
    Quote:
    MMD said:
    Yes, it absorbs water (I dunno why) and the next result is brownish stains on the inner workings which are really corrosion which is slowly ruining the tolerances/precision of the _expensive-to-replace_ brake components.


    Brake fluid is hydroscopic, which means it is a substance that absorbs water from it's surroundings, in this case the humidity in the air.



    Yeah, but WHY? darn! Don't want to sound like a kid (why,? why,? why,?) But I assume it is petroleum-based product and I thought roughly "oil and water" don't mix."

    Seems like we should *never* have to change brake fluid, should stay clean and almost sterile (kidding) since the system is completely closed, except for a tiny vent somewhere.

    13-ott-2006 13.12.56

    jcs
    Pilot
    jcs
    Loc: nj
    Posts: 308, Gallery
    Registrato dal: 3-mar-2006
    In risposta a: Grant

    Re: Brake fluid

    This is an easy and fun DIY if you buy a Motive power bleeder and some fluid. Total cost about $75...




    Could you give a brief description of how it's done,
    type and quantity of brake fluid used , tools needed etc.
    I would appreciate it ,
    thanks.

    13-ott-2006 13.58.47

    colonel
    Co-Pilot
    colonel
    Loc: NJ, USA , Stati Uniti
    Posts: 200, Gallery
    Registrato dal: 29-ago-2003
    In risposta a: jcs

    Re: Brake fluid

    jcs, there is a good article in renntech.org

    http://www.renntech.org/forums/index.php?showtopic=7064

    the steps are same for 996 and 997.

    13-ott-2006 17.26.39

    964C2
    Expert
    964C2
    Loc: Dallas, TX , Stati Uniti
    Posts: 1825, Gallery
    Registrato dal: 11-mag-2004
    In risposta a: Dan L

    Re: Brake fluid

    Quote:
    Dan L said:
    A hygroscopic substance readily absorbs water from its surroundings.

    (Note spelling)

    The similar sounding but unrelated word hydroscopic is sometimes used in error for hygroscopic. A hydroscope is an optical device used for making observations deep under water.



    dan



    You're right, been mixing the "d" for a "g" for years.....

    14-ott-2006 19.07.49

    sharmat
    Junior
    sharmat
    Loc: NJ
    Posts: 52, Gallery
    Registrato dal: 5-lug-2006
    In risposta a: 964C2

    Re: Brake fluid

    The manual recommends clutch fliud change at the same interval.
    Has anyone done this procedure by themselves? is it hard to do?

    14-ott-2006 19.14.32

    jcs
    Pilot
    jcs
    Loc: nj
    Posts: 308, Gallery
    Registrato dal: 3-mar-2006
    In risposta a: colonel

    Re: Brake fluid

    Quote:
    colonel said:
    jcs, there is a good article in renntech.org

    the steps are same for 996 and 997.



    Thank you.

    17-ott-2006 0.00.52

    Dan L
    Expert
    Dan L
    Loc: Santa Barbara, CA , Stati Uniti
    Posts: 1957, Gallery
    Registrato dal: 2-gen-2006
    In risposta a: 964C2

    Re: Brake fluid

    Quote:
    964C2 said:
    Quote:
    Dan L said:
    A hygroscopic substance readily absorbs water from its surroundings.

    (Note spelling)

    The similar sounding but unrelated word hydroscopic is sometimes used in error for hygroscopic. A hydroscope is an optical device used for making observations deep under water.



    dan



    You're right, been mixing the "d" for a "g" for years.....




    ...as have I!

    17-ott-2006 5.28.30

    MAVERICK Off-line
    Veteran
    MAVERICK
    Loc: Cincinnati, OH (USA) , Stati Uniti
    Posts: 1145, Gallery
    Registrato dal: 31-mag-2004
    In risposta a: MMD

    Re: Brake fluid

    Quote:
    MMD said:
    Yeah, but WHY? darn! Don't want to sound like a kid (why,? why,? why,?) But I assume it is petroleum-based product and I thought roughly "oil and water" don't mix."

    Seems like we should *never* have to change brake fluid, should stay clean and almost sterile (kidding) since the system is completely closed, except for a tiny vent somewhere.




    http://www.stoptech.com/tech_info/wp_brakefluid_1a.shtml
     
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