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Thread: finish question

  1. #1
    Join Date
    Dec 2010
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    upstate New York
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    Default finish question

    Hi all, I posted a question in the flathead area, but maybe it belongs here? I have located the proper carburetor body for my '39 UL with the 4 lines of writing. I sourced the rest of the parts for it individually. I know the carb body is supposed to be nickel plated, but am not sure about the remaining parts and hardware. Are the mixture adjustment knobs, choke lever , screws etc. also nickel ?
    Thanks for your help,
    Dwight
    AMCA 6295

  2. #2
    Join Date
    Jul 2002
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    North Hills, CA and Pine Grove, CA
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    It is not nickel electroplate. It is a dull nickel wash.
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    Also be sure to visit http://www.caimag.com/forum/

  3. #3
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    Dec 2010
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    upstate New York
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    Thanks for the help Chris!
    AMCA 6295

  4. #4
    Join Date
    Apr 2003
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    Seaford, NY
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    Have the body of carb bead blasted and then electroless nickel. You can also have the small parts plated with electroless nickel but the metal prep should have slight polish from a wire wheel or scotchbrite wheel.

  5. #5
    Join Date
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    Sarasota, Florida
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    You keep saying nickel wash Chris. My knowledge of nickel plating is either electro nickel plating, or electroless nickel plating. I've done both methods at home, and I'm not aware of anything in between. Historically, electroless was a process that became more common after WW2. Electro plating has been around for as long as there has been access to a DC power source. Production nickel plating for corrosion protection and not appearance is electro plated nickel without a copper base; and because it was a cost effective way to protect metal, it was put on thin. I believe Schebler, and Linkert carburetors probably had a noticable shine when first plated because the nickel was plated on a bronze base. Nickel plating will oxidize to a dull gray within a year, and if it is a thin layer on a bronze base, the color of the oxidizing bronze undrneath, will have a deffinate effect on the color of the nickel plating on top. Nobody knows what a Schebler, or Linkert carb looked like when it came out of the box and was assembled on a motorcycle. The only way you can replicate the look is by using common sense, and having an understanding of what the manufacturing process was like when that carb was created.
    Eric Smith
    AMCA #886

  6. #6
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    Apr 2003
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    Seaford, NY
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    If you go to any plating shop and request a nickel wash, they will not have a clue.

  7. #7
    Join Date
    Jun 2001
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    Central Illinois, USA
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    Chris is right, Folks,..

    The nickel on body castings (and some bowls) was not the bright finish we find upon machined hardware.

    Sometimes it's called "flash" nickel, and twice I read it was called "Watts" nickel.

    Whatever, it varied from Schebler to Linkert, and then some.

    The bottom line is: Once its gone, its gone.

    "Restoration" rules should stop demanding its destruction.

    ...Cotten
    PS: Here's studies in daylight and fluorescent.
    Attached Images Attached Images
    AMCA #776
    Dumpster Diver's Motto: Seek,... and Ye Shall Find!

  8. #8
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    Tom, I stand by my statement. Neither you, or anyone alive today knows what a Linkert carburetor looked like in 1939.
    Eric Smith
    AMCA #886

  9. #9
    Join Date
    Dec 2010
    Location
    upstate New York
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    Thanks everyone for your help! As I understand your advice I should have the body flash plated with nickel, as cast. No polishing before plating. The hardware should also be nickel plated.
    The body is worn somewhat smooth by polishing or cleaning over the years. I will bead blast it to make it look more like "as cast" before plating.
    Again, thanks everyone for your input,
    Dwight
    AMCA 6295

  10. #10
    Join Date
    Jun 2001
    Location
    Central Illinois, USA
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    Quote Originally Posted by exeric View Post
    Tom, I stand by my statement. Neither you, or anyone alive today knows what a Linkert carburetor looked like in 1939.
    Did I say I did, Eric?

    The bottom line is that eradicating all traces isn't preserving anything.

    ....Cotten
    AMCA #776
    Dumpster Diver's Motto: Seek,... and Ye Shall Find!

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