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Thread: Hacksawed carb repair?

  1. #1
    Join Date
    Jun 2001
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    Central Illinois, USA
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    Default Hacksawed carb repair?

    I only get the sick puppies, Folks,...

    Here is an M-5. with the most immaculate, un-patinated nickel imagineable!
    But somebody had the better idea to make deep hacksaw cuts through two of the aircleaner flange bolt holes.

    Any suggestions at a repair that would do the least damage to the nickel?
    Or who might provide such a service?

    Thanks in advance, even if I don't get a reply (getting used to that!)

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

  2. #2
    Join Date
    Oct 2010
    Location
    Southwest Michigan
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    If I was going to run it, I'd fill them with a light colored metal type filler, like Devcon, and let it be.
    It will be barely visible once installed.
    I wouldn't put any heat to that beautiful nickle finish.

  3. #3
    Join Date
    Jun 2001
    Location
    Central Illinois, USA
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    Barely visible ain't hard, 38el!

    But structural strength is....
    (There's deeply damaged threads involved.)

    I wouldn't accept a putty, so neither should anybody who trusts me with it.

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

  4. #4
    Join Date
    Aug 2013
    Posts
    526

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    probably not room on the inside for installing a Time-Sert..... but would not repair the cut.

  5. #5

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    Perhaps a silver braze. Fairly low heat and approximately the right color. Use a small tip on the torch. I've done it on a brass headlight shell with good success.

    I wonder why someone did that to that carb.

    Kevin
    Last edited by Shaky Jake; 12-29-2016 at 05:06 PM.

  6. #6
    Join Date
    Jan 2006
    Location
    Menomonie, WI
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    1,067

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    Quote Originally Posted by Shaky Jake View Post

    I wonder why someone did that to that carb.

    Kevin
    Probably the bolts were broke off so they cut a slot in it to turn it out with a screw driver. Jerry

  7. #7
    Join Date
    Sep 2010
    Posts
    125

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    Mask off the carb well protect the finish and glass bead the saw cuts to clean. Then I would consider a anti-scale compound like Keepbryte that is in a powder form but may be mixed with alcohol and brushed on that is good to1650 f. After brushing the nickel with that you could pack the carb with a heat sink material similar to powered asbestos that has been made wet to be put around the area to be repaired but not tight up against the saw cuts. If you use a hi-temp silver solder to fill the saw cuts it will flow at a couple hundred degrees below the 1650 f. The silver solder can be purchased in different melting temperatures and amounts of silver that affect color. You also may want to paint the threads with the Keepbryte to keep them from leaching any silver solder. And finish with a Demel. I would look for a good custom metal fabricator or perhaps a jeweler that dose custom work.
    Jim D

  8. #8
    Join Date
    Dec 2001
    Posts
    284

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    Looks like someone had in mind to make a 2 bolt type m-5 and chickened out.

  9. #9
    Join Date
    Jul 2003
    Location
    Rocky Top TN.
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    261

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    Find a jeweler that has one of the new laser Welders. These are the latest (and greatest) thing in the jewelry repair industry. With one of these, you could easily fill those saw marks with out any effect to the nickel paint or any thing else. Google jeweler laser welder to see.

  10. #10
    Join Date
    Jun 2001
    Location
    Central Illinois, USA
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    Thanks Rousseau!

    But Google only teases me with another toy to buy, or it would take a lot of phone calls to find a jeweler with one, and then two seventy-five mile round trips to the 'big city' if there is a jeweler there who will accept it.
    Or postage, insurance, and delay to send it to Chicago, the really big city. It bothers me to let it get that far out of my control.

    I think I can torch it....

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

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