Cleaning a clutch disc | FerrariChat

Cleaning a clutch disc

Discussion in 'Technical Q&A' started by LmnsBlu355, Apr 28, 2010.

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  1. LmnsBlu355

    LmnsBlu355 Formula Junior

    Dec 28, 2009
    284
    NY
    Full Name:
    Jordan S.
    My clutch disc has only 8000 miles and plenty of wear left. I'm not sure if it was contaminated by leaking triple seals. Is it safe to clean the friction surface with brake cleaner?? (There didn't seem to be any slippage before teardown).

    Thanks,

    Jordan
     
  2. Rifledriver

    Rifledriver Three Time F1 World Champ

    Apr 29, 2004
    36,760
    Cowboy Capitol of the World
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    Brian Crall
    It is safe.

    The success you have will depend on how saturated it is.
     
  3. tatcat

    tatcat F1 World Champ
    Owner Silver Subscribed

    Sep 3, 2001
    11,013
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    rick c
    we used to soak them in white gas and burn the oil out.
     
  4. LmnsBlu355

    LmnsBlu355 Formula Junior

    Dec 28, 2009
    284
    NY
    Full Name:
    Jordan S.
    Thanks.
     
  5. LmnsBlu355

    LmnsBlu355 Formula Junior

    Dec 28, 2009
    284
    NY
    Full Name:
    Jordan S.
    Huh?? Can you explain? Burn...as in light on fire?
     
  6. Dave 456

    Dave 456 Formula 3

    Nov 15, 2007
    1,317
    Sydney, Australia
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    Dave Simons
    The other side of the coin is that, if you replace the clutch disc, you won't have to worry about:

    1) What it was contaminated with,
    2) How saturated it was,
    3) How good a job you did removing the contamination and,
    4) Doing the clutch job again in 1000 miles because the clutch shudders(assuming the leak is fixed).

    Yep, done that....
     
  7. tatcat

    tatcat F1 World Champ
    Owner Silver Subscribed

    Sep 3, 2001
    11,013
    panama city beach FL
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    rick c
    yes, burn with fire. immerse the plate in gas overnight, remove and take outside and light it up with a torch. it will burn all the oil out of the clutch material. it only burns for a minute or so as the clutch material in inflammable. i've done it to vw clutches and harley clutch plates before.
     
  8. don_xvi

    don_xvi F1 Rookie

    Nov 1, 2003
    2,934
    Outside Detroit
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    Don the 16th
    And by "white gas" you mean something like Coleman stove fuel, not gasoline, right?

    Just to keep everybody on the same page here...
     
  9. TopElement

    TopElement Formula 3

    May 14, 2005
    1,540
    OC & Vegas
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    A Montoya
    How much cheaper is a clutch disc than the labor to replace it?
     
  10. f355spider

    f355spider F1 World Champ
    Owner Rossa Subscribed

    May 29, 2001
    18,028
    USA
    +1. Or, what is the labor cost if after it is back together, it ends up slipping and needs to be replaced anyway? I had the seals fail after a clutch job at the local dealer....about 11 months later, it was covered under Ferraris unlimited mileage warranty (only 4500 miles had passed), the clutch did not slip before, but they went ahead and installed a new disc.
     
  11. tatcat

    tatcat F1 World Champ
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    Sep 3, 2001
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    rick c
    correct.
     
  12. SandSpike

    SandSpike Rookie

    Dec 14, 2009
    23
    Inflammable and flammable mean the same thing. It burns. Noninflammable is the word I believe your looking for. ​
     
  13. LmnsBlu355

    LmnsBlu355 Formula Junior

    Dec 28, 2009
    284
    NY
    Full Name:
    Jordan S.
    Labor cost is relative. I'm doing it myself so labor is $0...actually for me its relaxing to work on my cars. Stress reliever as well. :)
     
  14. chrismorse

    chrismorse Formula 3

    Feb 16, 2004
    2,150
    way north california
    Full Name:
    chris morse
    I had the input shaft bearing and seal go south, maybe a year after replacing the clutch. The disc was previously relined with carbon/Kevlar by Centerforce, under warranty and was nearly "new" but wet with gear oil. Being the cheap ba$tard that i am, i soaked it several times with brake clean and scrubbed it with a stiff bristle brush, hopeing to exorcise the evil grease deamon from my disc.

    After three track days and some serious clutch useage, i am satisfied that it worked - no slipage or grabbing.

    my .02
    chris
     
  15. TopElement

    TopElement Formula 3

    May 14, 2005
    1,540
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    A Montoya
    I know, but there's still a price for spending hours working on ones car.
     
  16. ramosel

    ramosel Formula 3

    Sep 11, 2004
    1,237
    Meadow Vista, CA
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    R Moseley
    Price?? Mental pleasure... and a great escape from the world. I try to pay that bill as often as possible.

    But I agree with your original statement... I'd get a new disc.

    But then, I'd probably soak the oily one in lacquer thinner until it quit leaching oil, brushing it down well. Dry it in the sun for a weekend then oil wipe the metal bits and wrap it up for a "rainy day" spare. And if I'm being totally honest, it would sit with the other spares for years and eventually get tossed.

    Rick
     
  17. 2NA

    2NA F1 World Champ
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    Dec 29, 2006
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    Tim Keseluk
    Technically if the clutch disc would burn it would be "combustible". Flammable (and inflammable) are used regarding liquids, vapors and gasses.
     
  18. 2NA

    2NA F1 World Champ
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    Dec 29, 2006
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    A 355 clutch isn't too difficult to remove, cleaning the disc is certainly worth a try. I've had good success cleaning clutches and brake shoes on old British cars with brake cleaner. A can or two and a bunch of paper towels, maybe a small stiff wire brush and you're probably good to go.
     
  19. SandSpike

    SandSpike Rookie

    Dec 14, 2009
    23
    Webster’s New World Dictionary College Edition, doesn’t state flammable and inflammable relate solely to liquids, gases, or vapors. Flammable and inflammable are defined as: “easily set on fire; that will burn readily or quickly; combustible”. I’m trying to think of a liquid that burns, and I can’t think of one without having it be in the gaseous state and then mixed with a certain amount of oxygen. There must be a bunch out there, however. I got splashed in my eyes with water in a swimming pool once. That burned. Naw, I don’t think that counts.​



     
  20. 2NA

    2NA F1 World Champ
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    Dec 29, 2006
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    Gasoline
     
  21. SandSpike

    SandSpike Rookie

    Dec 14, 2009
    23
    Gasoline in a liquid form burns? I guess if it gets in your eyes.​


     
  22. Artvonne

    Artvonne F1 Veteran

    Oct 29, 2004
    5,379
    NWA
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    Paul
    Gasoline does not burn. Only the fumes burn.
     
  23. 2NA

    2NA F1 World Champ
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    I guess if you really want to put a fine point on it gasoline has "vapor".


    vapor - A gas formed by boiling or evaporating a liquid.

    fumes - (chemistry) Particulate matter consisting of the solid particles generated by condensation from the gaseous state, generally after volatilization from melted substances, and often accompanied by a chemical reaction, such as oxidation.
     
  24. tatcat

    tatcat F1 World Champ
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    Sep 3, 2001
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    rick c
    so i suppose we now need a dictionary to clean an oily clutch plate? mae cupla.
     

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