Front brake stuck on | FerrariChat

Front brake stuck on

Discussion in '348/355' started by lauris, Oct 12, 2014.

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  1. lauris

    lauris Formula Junior

    Jul 27, 2005
    281
    Glasgow
    Full Name:
    Scott Laurie
    Just interested in anyones comments on this.

    1997 spider, 27k miles, not been used for a few month, took it out today and the front near side brake stuck on, over heating the caliper, smoke coming off it. stopped let it cool, poured some water to make sure it was cold, brake released, drove it home slowly with handbrake only. took wheel off, took out pads, everything looked ok, no corrosion visible really, but the pads did seem tight in the caliper, (where they slide on the st.st insert) so filed edge of pad and added some copper grease. cleaned everything and put back together) tried pressing brake pedal, and brakes worked and realesed fine. drop car back of the jack and tried to reverse, brakes stuck on but it was the drivers side this time, it was solid. lh side was fine, did exact same on RHS and it all seems fine now,

    but it just seems strange that both have failed on the same day. (car had been driven for about 20 miles before the first one locked up).

    wondering if the flexiable pipes are degrading or blocking on the inside and sealing pressure in

    Anyone had anything similar. ????

    also rear wheels seem to have excessive amount of brake dust also - I am guessing its just old pads and maybe degrading ? so will change them and see if it makes any difference. or they could be dragging a bit also ??

    The car has full history and is pretty much immaculate, it hasnt been out in the rain in over a year and after I wash it I take it for a run to dry brakes before parking it up, its also kept in a heated garage normally, but had been parked outside for about a week recently in the rain, but in a fairly expensive outdoor cover.

    thanks in advance to anyone that has comments.

    regards
    Scott.
     
  2. fatbillybob

    fatbillybob Two Time F1 World Champ
    Consultant Owner

    Aug 10, 2002
    29,224
    socal
    This failure does not sound like it should happen with proper maintenance. Your failure is a dangerous one which could put you in a wall. Don't drive the car until it is fixed. These cars are 17 years old and brake components are not lifetime but their life can be greatly extended by proper maintenance. Two common forms of brake release failure are from moisture of not properly flushing brake systems routinely allowing the internals of the brake lines to clog or the piston seals to stick and drag.
     
  3. lauris

    lauris Formula Junior

    Jul 27, 2005
    281
    Glasgow
    Full Name:
    Scott Laurie
    fluid changes have all been done, and full main dealer history until 2012, 2013, had indy that looks after my porsches, i dont think sticking pistons were the issue due to corrosion at all, i am going to have the flexy brake pipes replaced as a matter of course and considering having the calipers rebuilt with new seals, had just wondered if anyone had a similar issue and what they found the cause to be,
     
  4. tr512

    tr512 Formula 3

    Apr 12, 2007
    1,600
    canada burnaby bc
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    Michael
    Brake lines.I had the same problem with my 1999 last week.there is a re/call on the front brake lines.
     
  5. fatbillybob

    fatbillybob Two Time F1 World Champ
    Consultant Owner

    Aug 10, 2002
    29,224
    socal

    If you are only replacing the flexy pipes as a "matter of course" then why bother? Why bother rebuilding the calipers if you don't think the pistons are sticking? You know where I am going with this. You need proper diagnosis.
     
  6. johnk...

    johnk... F1 World Champ
    Owner

    Jun 11, 2004
    11,276
    CT
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    John Kreskovsky
    Had a problem like that on my 308. Small seepage past the piston seals, over a long period of time, without use of the car, turns to gue and once you step on the brake the piston will not retract. Check the calipers. You may need to rebuild them. Also flush the brake lines.
     
  7. plugzit

    plugzit F1 Veteran
    Silver Subscribed

    Dec 1, 2004
    7,789
    Redondo Beach, CA
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    Bruce Bogart
    ABS unit malfunctioning?????
    (Just a guess)
     
  8. 97 Spider

    97 Spider Formula 3

    Dec 15, 2012
    2,241
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    Brian
    First thing I thought was this usually happens when there is gunk / junk in the brake line right at the caliper or in the fluid porting of the caliper itself. It can act like a check valve and let you apply pressure to the piston then when you let off it still holds the pressure. I've seen that plenty of times. Even on a car that gets the brake lines flushed regularly they rarely clean out the caliper side totally.

    Having it switch sides makes it interesting. Maybe like Bruce said something with the ABS unit? If it was the master cylinder not letting the pressure off you would think it would be both front or both rear at the same time. I would personally look in the ABS area of things where it splits individually into the 4.
     
  9. SoCal1

    SoCal1 F1 Veteran
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    Jun 14, 2011
    8,636
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    Tim Dee
    If a problem like this occurs a full safety check is in order from the master to the last bleeder. Once crud is in the brake system a complete service is the only option
     
  10. 348Jeff

    348Jeff Formula 3

    Oct 25, 2011
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    #10 348Jeff, Oct 13, 2014
    Last edited by a moderator: Sep 7, 2017
    This is whats wrong! LOL

    2 most probable causes are....

    1) Caliper pistons sticking. Buy yourself a pad spreader, pull out your pads and try and "spread"/wind back the pistons into their respective cylinders. If they wont go back easily your calipers need a strip down clean etc

    2) The tracks the pads run on corrode forcing (usually) the bottom one forcing it upwards slightly thus reducing the gap for the pad to slide in and causing them to jam in the applied position - don't forget your pistons are there to force the pad against the disk - once your foot is off the pedal they should loosen off from the disk under their own accord and it sounds like this is not happening. At the very least try cleaning the top and bottom tracks and make sure the pads can move freely - if they are tight fit as you say that need to be fixed before you do anything else.

    Pics of brake pad spreader attached
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  11. 2NA

    2NA F1 World Champ
    Consultant Owner Professional Ferrari Technician

    Dec 29, 2006
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    Tim Keseluk
    Sounds like a brake hose problem. I have a 348 here today with a dragging rear brake problem. I'll let you know what I find.
     
  12. Dave rocks

    Dave rocks F1 World Champ
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    I've not heard about that recall campaign - do you have a PDF or letter regarding it - or the recall notice number?
     
  13. tr512

    tr512 Formula 3

    Apr 12, 2007
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    Dave
    I didnt do the re/call .i just had two steel braided lines made up $35 each.But if you google 99 355 ferrari re/calls you will find it.Its only for the front lines.
     
  14. drbob101

    drbob101 F1 Rookie
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  15. SoCal1

    SoCal1 F1 Veteran
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    Maybe someone installed "roll COntrol" on the car


    :) heheheheh
     
  16. Dave rocks

    Dave rocks F1 World Champ
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    I was recently told by a dealer that the recalls are for life - no time limit.
     
  17. drbob101

    drbob101 F1 Rookie
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    I put SS lines on all my brakes when I changed the calipers. The originals are 20 year old rubber under high pressure.

    I would suggest this as a minimum upgrade for for all.
     
  18. 348Jeff

    348Jeff Formula 3

    Oct 25, 2011
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    #18 348Jeff, Oct 13, 2014
    Last edited by a moderator: Sep 7, 2017
    If I could just add to what I said before....

    If you find that the pistons don't want to retract easily with the spreader and your concerned about it being a hydraulic problem loosen off the bleed valves giving the fluid an escape route.

    If they then relax and become easy to spread then I would suspect what's mentioned above. However if they are still stiff then suspect the caliper.

    NB Just an indicator of how free pistons in calipers should be with them off the car you should be able to push them into their cylinders quite easily by hand and eject them with compressed air from one of those cans used to dust computers etc.

    Just a guess but did you give the car a wash before putting it away for the few months you mentioned? You might have a mild dose of surface corrosion which a good clean up would cure.
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  19. tr512

    tr512 Formula 3

    Apr 12, 2007
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    Ferrari north america
    3/21/2000
    #477
    Service brakes hydraulic foundation components /hoses/lines/piping and fittings.
     
  20. tr512

    tr512 Formula 3

    Apr 12, 2007
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    Bob
    Its not just for leaking hoses.The brake lines can collapse and not release the brake caliper.
    Its got something to do with rubber brake hose and brake fluid not being compatible.
    I just fixed mine last week left front caliper would not release. i had two steel braided lines made up for $35.00 each and replaced both sides.
     
  21. drbob101

    drbob101 F1 Rookie
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  22. lauris

    lauris Formula Junior

    Jul 27, 2005
    281
    Glasgow
    Full Name:
    Scott Laurie
    Guys thanks for all the replies.

    Update !

    Brake pads removed from all four calipers, the slides cleaned and pistons checked that they are moving in an out easily (all were). All seals in good shape with no tears, splits, nicks etc. Calipers have no corrosion visible at all, but the slides had build up of what looks like hard brake dust/anti seize compound. All cleaned, copper ease applied and put back together.

    Spoke to shop who said that its fairly common, especially if not used that they can drag a little and heat up, which can make matters worse.

    Moved car back and forth loads in garage and pedal felt fine. Took it about 20 yards and pedal felt like no servo, took loads of pressure to get brakes to work. (only doing 5mph) then front LHS locked up again.

    Its back in the garage in disgrace and I will stick it on the car transported and take to garage as soon as they have a free slot.

    ABS light came on this time, which was interesting,

    My prediction is that the brake pipes are the issue.

    Will fit aero quips while its in shop anyway, but it could be ABS issue.

    regards
    Scott.
     
  23. Dave rocks

    Dave rocks F1 World Champ
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  24. lauris

    lauris Formula Junior

    Jul 27, 2005
    281
    Glasgow
    Full Name:
    Scott Laurie
    Shop called today, car sorted, collapsing hose on front brakes,

    system flushed, new aeroquips all round, car serviced, ready for pick up friday,

    cost - who knows, but happy its working again,


    thanks to all that posted helpful responses,

    regards
    scott.
     

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