ABS Pump Rebuild Service | FerrariChat

ABS Pump Rebuild Service

Discussion in '348/355' started by Timo04, Dec 29, 2018.

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  1. Timo04

    Timo04 Karting

    Jul 2, 2007
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    S.F. Bay Area
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    Tim
    #1 Timo04, Dec 29, 2018
    Last edited: Dec 29, 2018
    Greetings,

    Does anyone happen to know of a power brake service that rebuilds these ATE ABS booster pumps for the F348/355? If you do, please post the name and contact information. Many thanks!

    BTW: I checked with Karp's Power Brake Service in Upland, CA and they won't touch 'em

    A Happy New Year to all!


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  2. QSA

    QSA Formula Junior
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  3. carnutdallas

    carnutdallas Formula 3
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    What is the issue? Pretty easy to fix. Typically a new pressure pod and the green “switch/valve” replacement is the repair that solves the issue.


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  4. taz355

    taz355 F1 Veteran
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    Feb 18, 2008
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    Grant
    I was going to say same thing. If motor is gone likely just brushes so you can fix those as well
     
  5. yelcab

    yelcab F1 World Champ
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    Nov 29, 2001
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    Or you can buy a rebuilt one from a place in the UK. Don't try to buy one off a junk yard. They want a lot for … junk.
     
  6. taz355

    taz355 F1 Veteran
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    Yup that works too
     
  7. Timo04

    Timo04 Karting

    Jul 2, 2007
    198
    S.F. Bay Area
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    Tim
    What is the name this service in the UK? I agree to avoid the junk yard ones for sure.

    Thanks for the all the tips gentlemen.

    The issue with one pump is that it has leaky seals, although it runs OK, it leaks. I have not been able to source the correct seals, and want to make sure they are of good quality. The issue with the two other pumps is that they do not run, hence they probably have bad motors with worn bushes and possibly bad armatures.

    With regards to a faulty or non-functioning Tevis Mark II ABS typically if the pump motor runs well, and there are no leaks, replacing the accumulator (the black ball) with a good, brand new one, will solve a whole lot of issues (as mentioned above). Or replacing the pressure switch will also resolve a lot of issues as well (also mentioned above).

    I am aware that much of the time a worn out accumulator is the main issue. Worn out accumulators will make the motor and pump work harder and thus shorten their life as well. I have found that the accumulators typically go bad long before the pressure switches go out. This is due to the membrane (or bladder) inside the accumulators. When they are not even being used, they have a limited shelf life too. When sourcing a new one, the build date should be as recent as possible. I look for ones that are no older than three years. Of course, the newer the better.

    If I can source good seals, and electric motor parts I will attempt to rebuild these pumps myself. So far no success on this on this front. For now, I will reach out to Matt Sweetings: http://www.powerbrakeservice.net/index.html

    Thanks again for the tips!
     
  8. Timo04

    Timo04 Karting

    Jul 2, 2007
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    Tim
    Happy New Year!

    In answer to my own question, so far I found these two services based in the UK:

    http://www.bba-reman.com/us/index.aspx <<< has a USA location, Global HQ is located in the UK.

    https://www.autotronics.co.uk

    I have inquired both to both services to see if they will repair or rebuild the Tevis Mk II ABS motor/pumps.
     
  9. dlb1988

    dlb1988 Rookie

    Oct 16, 2017
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    What place?
     
  10. Ferrarium

    Ferrarium F1 Veteran
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    Does anyone know what other cars use this pump and accumulator? I bet an xref to another car would be cheaper and can probably get a whole new unit for 1/2 price maybe less than fixing the Ferrari #70000530 unit.
     
  11. tbakowsky

    tbakowsky F1 World Champ
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    Sep 18, 2002
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    Ford super coupe Thunderbird from the 90's. However, good luck finding parts for those either. Although I have not tried that route in a while, maybe things have changed.
     
  12. tbakowsky

    tbakowsky F1 World Champ
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    Must add, it was also used in Jaguar, and Lincoln models.
     
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  13. Ferrarium

    Ferrarium F1 Veteran
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  14. bjwhite

    bjwhite F1 Rookie

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    And Alfa Romeo Milano/75.
     
  15. khcompt

    khcompt Rookie
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    Dec 11, 2013
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    Ken Compton
    Gents:
    A related question to the ABS pump rebuild / replacement
    I own a 1999 355 F1 Spider. Included in my LONG CANADIAN WINTER maintenance program I changed the brake fluid. Initially I had a lot of travel in the brake peddle and a lot of fade. I bled the system several times according to recommended procedures and the fade is gone, but there is still a lot of travel on the peddle.

    The brake system bleeding procedure I used was to bleed the system starting with the caliper the furtherest from the master cylinder (rear passenger side - rear driver's side - front passenger side - finally the front driver's side, keeping the reservoir full at all times, and running the engine while bleeding the rear calipers.

    Late last summer the ABS light came on intermittingly, but before putting the car away for the winter the light went out.
    Since changing the brake fluid the ABS light has remained on. I have tried shifting from normal to sport mode several time but the ABS light remains on.
    There are no leaks in the system, and I used DOT 4 fluid.

    My question - might the long travel on the brake peddle be due to a fault in the ABS system?
    - if yes what is the recommended trouble shooting procedure to determine a fault in the ABS system.


    Thanks.

    Ken
     

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