Can this Testarossa Brake Caliper be Saved? | FerrariChat

Can this Testarossa Brake Caliper be Saved?

Discussion in 'Boxers/TR/M' started by mfaisal, Aug 1, 2017.

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  1. mfaisal

    mfaisal Rookie

    Mar 19, 2017
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    #1 mfaisal, Aug 1, 2017
    Last edited by a moderator: Sep 7, 2017
    Hi everybody,

    My Testarossa Rear Left Hand Side brake caliper that had been stuck pressing the pad into the brake disc before I received the car. It looks pretty bad, since the pistons look to be damaged.

    I have attached a photo. Can the pistons/caliper be saved, or would I have to buy a completely new one? Please let me know what you guys think.
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  2. turbo-joe

    turbo-joe F1 Veteran

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    there is a lot of grease to see
    clean it and post again a photo please
     
  3. mfaisal

    mfaisal Rookie

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  4. INRange

    INRange F1 World Champ
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    It depends on what you find if/when you pull the pistons out. One of the pistons looks damaged so depending on what the bores look like with the pistons removed....I'll reserve judgement.
     
  5. dradambbb

    dradambbb Karting

    Apr 24, 2016
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    The bores need to be in good order as the previous poster stated. Replacement pistons are available as well as new sealing kits. I rebuilt mine earlier with parts from Superperformance.
     
  6. turbo-joe

    turbo-joe F1 Veteran

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    thx for the photos
    one piston looks really bad, the other ok

    as the 2 members before me already said: the bores have to be ok and 1 piston should be available
    so noneed to get new calipers
    and if you want get some then take larger ones from a F40 or F50 or 6 piston calipers from brembo. then you have good brakes :)
    but enzo once said: who will brake - will loose :) :)
     
  7. Mr.Chairman

    Mr.Chairman F1 Rookie

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    Send out for rebuild. Study can always sleeve the bore. One company sleeves with bronze or copper. Will never seize again.

    R
     
  8. ago car nut

    ago car nut F1 Veteran
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    White Post reproductions re-sleeves in brass. I was told stainless steel needs a tighter shrink fit and sometimes cracks the casting.
     
  9. Mr.Chairman

    Mr.Chairman F1 Rookie

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    Bingo. It's brass. Thank you. That's the place. I hear great things about them.

    R
     
  10. ago car nut

    ago car nut F1 Veteran
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    White Post is a family generation business, the grandson is now part of the company.
     
  11. Steve Magnusson

    Steve Magnusson Two Time F1 World Champ
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    PMB (www.pmbperformance.com) is another option that I wouldn't hesitate to use. In fact, based on the result for the price (you couldn't do it yourself for less because they include replating stuff), I'm never rebuilding another caliper myself - ever ;)
     
  12. mfaisal

    mfaisal Rookie

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    Thank you for your help and responses. I am actually heading to London in a few days and was thinking of taking the caliper with me so that I could have it done in the U.K. Does anyone have any recommendations?
    Thanks!
     
  13. dradambbb

    dradambbb Karting

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    #13 dradambbb, Aug 3, 2017
    Last edited by a moderator: Sep 7, 2017
  14. mfaisal

    mfaisal Rookie

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    Oh that looks good. Any recommendations if I try to do it myself? What tools would I need?
     
  15. dradambbb

    dradambbb Karting

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    I will write this up properly soon but off the top of my head:

    Air compressor
    3 small g-clamps
    Small flat headed screwdriver for removing old rings
    Sanding paper
    Rebuild kit
    Cloths
    Brake cleaner fluid
    Patience?

    Just be careful with your fingers for when the pistons pop out. To fit the new rings you may need to stretch them a bit by hand as it's tight in there.

    To be honest these are fairly basic ATE calipers that specialists can rebuild. Not Ferrari specific in any way whatsoever.
     
  16. mike32

    mike32 F1 Veteran

    May 13, 2016
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    A big hammer, so you can take your frustration out on something if you cant get the piston out.
     
  17. Ludwig

    Ludwig Formula Junior

    Mar 27, 2006
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    If the pistons are stuck/difficult the best trick is to use a grease gun via the bleeder to push them out in a very controlled fashion.
     
  18. PAUL500

    PAUL500 F1 Rookie

    Jun 23, 2013
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    A company called big red will rebuild calipers in the UK, have a look at their website, its cheaper than even doing it yourself, they come back like new.
     
  19. pshoejberg

    pshoejberg Formula 3
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    #19 pshoejberg, Aug 3, 2017
    Last edited by a moderator: Sep 7, 2017
    Often these pistons / callipers can be saved with a little albow grease. The dismanthling process is critical and it is here most peoble damage their pistons. You need to press out the pistons ideally using a small hydraulic pump. Remember to use a good solid clamp to secure the piston to avoid a loose projectile. When the piston is out you can polish it with grit 400 paper or finer. You can also polish the caliper cylinder. Only polish in the right direction to minimize leak path. Install new seals including new dust seals and use the correct blue brake grease compound during the installation. Nice little weekend project for a handy man. Best Peter
    Below a before and after picture from my own garage adventures. I used new pistons, though that was actually not neccessary.
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  20. Melvok

    Melvok F1 World Champ
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    Get yourself a refurbished set (or used at Erospares.uk) or get the better 512TR brakes ...

    The best way to go ! :D
     
  21. mfaisal

    mfaisal Rookie

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    Thank you everyone for all your replies. It's been very helpful!
     

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