1979 308GTB question: "cad" plated or not?? | FerrariChat
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1979 308GTB question: "cad" plated or not??

Discussion in 'Technical Q&A' started by christopher, Nov 28, 2004.

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  1. christopher

    christopher Formula 3

    Nov 29, 2003
    1,136
    Ontario California
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    Christopher
    #1 christopher, Nov 28, 2004
    Hello fellow "F"-chatters,

    May I call on you expertise?

    Whilst restoring my engine bay on my "79" 308, I came across a piece that I can't determine whether it was "cad' plated or just polished.......

    The piece is the torque strut (dog-bone) mounting bracket that affixes to the rear of the car (trunk area), beside the coolant recovery tank.

    Any ideas on what the factory did with these, plated, polished, otherwise???

    Also, your pics of a restored engine bays would greatly be appreciated!!!

    Thank you kindly,

    Chris.
     
  2. Rifledriver

    Rifledriver Three Time F1 World Champ

    Apr 29, 2004
    37,288
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    Brian Crall
    #2 Rifledriver, Nov 28, 2004
    Almost nothing in that engine bay is polished. Aluminum parts are generally left rough cast and steel parts such as the bracket at the firewall are cad.
     
  3. jmillard308

    jmillard308 F1 Veteran
    Owner

    May 29, 2003
    6,685
    Perth West Oz
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    John Millard
    #3 jmillard308, Nov 28, 2004
    I'm thinking the "dogbone" was painted black. The bracket on the firewall was "cad" & the bracket on the engine is unfinished alloy.

    JMHO
    John
     
  4. Artvonne

    Artvonne F1 Veteran

    Oct 29, 2004
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    Paul
    #4 Artvonne, Nov 29, 2004
    all those parts, the dog bone, and the bracket at the rear bolted into the front of the trunk, are painted black on my 77 308
     
  5. Steve Magnusson

    Steve Magnusson Two Time F1 World Champ
    Lifetime Rossa

    Jan 11, 2001
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    Steve Magnusson
    #5 Steve Magnusson, Nov 29, 2004
    My ex-US '78 matched John Millard's description (athough the "bracket" on the engine side is cast as part of the camcover) -- and it might vary year-to-year (ala camcover painting).

    However, if your bracket on the rearwall is a magnetic steel then I think you can safely assume that there was a (poor) initial attempt to give it some corrosion resistance, and, that during previous care, it was just "rubbed off" (i.e., any magnetic steel would require some surface treatment/coating to prevent corrosion just from atmospheric moisture).

    If the bracket on the rearwall is a polished non-magnetic stainless steel (or aluminum), I'd guess that it's a custom fabbed replacement.
     
  6. Martin308GTB

    Martin308GTB F1 Rookie

    Jan 22, 2003
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    Black Forest Germany
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    Martin N.
    #6 Martin308GTB, Nov 29, 2004
    I don't believe that all that yellowish stuff is cadmium plated. I think, it's just yellow zinc plated.

    Best Regards
    Martin
     
  7. christopher

    christopher Formula 3

    Nov 29, 2003
    1,136
    Ontario California
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    Christopher
    #7 christopher, Nov 29, 2004
    Hey Gents,

    Thanks for weighing in your thoughts!

    Appreciate it kindly!!

    Regrards, Chris L.
     
  8. 308 GTB

    308 GTB F1 World Champ
    Rossa Subscribed

    Feb 7, 2002
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    Barry Wolinsky
    #8 308 GTB, Nov 29, 2004
    Chris,

    That appears to be the case with my 1976 GTB (unrestored engine bay):
     

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