Steering rack maintenance | FerrariChat

Steering rack maintenance

Discussion in '308/328' started by Portofino, Mar 25, 2020.

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  1. Portofino

    Portofino Formula Junior

    Sep 17, 2011
    564
    Yorkshire UK / Switzerland/ Liguria ( Italy )
    Full Name:
    Portofino
  2. thorn

    thorn F1 Rookie
    Silver Subscribed

    Aug 7, 2012
    3,322
    Tallahassee, FL
    The top image: basically, adjustment shims.

    Lower image: can't tell what exactly this is a photo of. Is that the evaporator drain tube?
     
  3. thorn

    thorn F1 Rookie
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    Aug 7, 2012
    3,322
    Tallahassee, FL
  4. Portofino

    Portofino Formula Junior

    Sep 17, 2011
    564
    Yorkshire UK / Switzerland/ Liguria ( Italy )
    Full Name:
    Portofino
    Yes ,the AC drain tube .The other thing Is a mounting bracket .
     
  5. Cirorsi

    Cirorsi Formula Junior

    Nov 10, 2016
    790
    Louisiana / Lac du Saint Sacrement, NY
    Full Name:
    Steven
    Thor, how do you like that fast rack?
     
  6. chris_columbia

    chris_columbia Formula Junior
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    Feb 5, 2008
    814
    Columbia MD
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    Chris
    If you are in there, you might consider replacing the 8 bushings that mount the rack to the frame with something stiffer. Do a search. A few of us have switched to acetal.
     
  7. jha328

    jha328 Rookie

    May 26, 2013
    18
    Australia
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    John
  8. thorn

    thorn F1 Rookie
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    Aug 7, 2012
    3,322
    Tallahassee, FL
    I do like it, but I've never driven a 308 without one. (So, cannot objectively say how much/if I prefer it.)
     
  9. Portofino

    Portofino Formula Junior

    Sep 17, 2011
    564
    Yorkshire UK / Switzerland/ Liguria ( Italy )
    Full Name:
    Portofino
    Thanks very much guys , that’s very helpful
     
  10. Nino1964

    Nino1964 Formula Junior
    Silver Subscribed

    Aug 14, 2015
    285
    North Georgia
    The shims can be purchased from Superformance. Not sure of the exact procedure for proper shimming procedure. Maybe someone can advise?
     
  11. TonyL

    TonyL F1 Rookie

    Sep 27, 2007
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    Norfolk - UK
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    Tony
  12. yelcab

    yelcab F1 World Champ
    Consultant

    Nov 29, 2001
    12,661
    San Carlos, CA
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    Mitchell Le
    These racks are install and forget items. There are no regular maintenance other than …

    1) If the boots crack, replace them.
    2) If there is a leak, rebuild the rack.
    3) If there are binding issues, replace the rack.

    The changing of the shims is done at the time or rebuild or at the factory. You really don't need to or should even mess with it.
     
    Crowndog and Rifledriver like this.
  13. GordonC

    GordonC F1 Rookie
    Owner Rossa Subscribed

    Aug 28, 2005
    4,119
    Calgary, AB, Canada
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    Gordon
    Disassembly and reassembly/rebuilding the rack is also necessary if you want to install the fast ratio rack/pinion internals from Superformance. I don't believe anybody sells a fast ratio assembled rack?
     
  14. yelcab

    yelcab F1 World Champ
    Consultant

    Nov 29, 2001
    12,661
    San Carlos, CA
    Full Name:
    Mitchell Le
    That would be true, but that is not regular maintenance. You are essentially building a different rack. The shims affect the effort it takes to turn the steering knob. There is probably a spec, or adjust by feel for someone who has done a hundred of these.
     
  15. thorn

    thorn F1 Rookie
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    Aug 7, 2012
    3,322
    Tallahassee, FL
    I'd done shim adjustments on mine. Perhaps I shouldn't, but I've gone from a car that was incredibly difficult to turn to one that's completely manageable. Preload, in my opinion, was set far too high.

    (I'll note for the record that the original install of my rack was completely, utterly screwed up by another mechanic.)
     
  16. Nino1964

    Nino1964 Formula Junior
    Silver Subscribed

    Aug 14, 2015
    285
    North Georgia
    I set the shims as part of the rebuild. Shim height that is shallow in very tight rack.
     

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