Welding repairs and old undercoat

Discussion in 'General Maverick/Comet' started by Powerband, Feb 11, 2020.

  1. Powerband

    Powerband Member

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    ---- 1976 Comet --- 1974 Maverick- - '61 Comet T'Bolt Six ---- 'quite a few projects ...
    A common situation discussed with my current project includes rear torque box and spring hanger repair.

    Not often discussed is related common problem of heavy old dried tarry undercoat .

    Suggestions appreciated how anyone's dealt with this reasonably for panel/subframe repairs.

    ... Need to clean adjacent steel to weld to new steel . I've used bonding as well as stitch welding for panel repairs and structural subframe/spring works best with good clean weld surfaces.

    thanks

    [​IMG]
     
  2. RMiller

    RMiller My name is Rick Supporting Member

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    I have been using a needle scaler, works amazing on the stuff that is set up and hard. It isn't the best on the gooey stuff, just seems to move it around.
     
  3. 71gold

    71gold Frank Cooper Supporting Member

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    I lucked out and it was a cold day when I did mine with a needle scalier and it all came off...:thumbs2:
     
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  4. Craig Selvey

    Craig Selvey Indiana State Rep - MCCI

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    I have used a gasket scrapper and a hammer.
     
  5. Acornridgeman

    Acornridgeman MCCI Wisconsin State Rep Moderator Supporting Member

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    Air scraper and a wire brush cup on the angle grinder followed by lots of rags with solvent. Anyway you do it, it makes a mess of the shop. :)
     
  6. Tannersg1

    Tannersg1 Member

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    I borrowed a high end heat gun from work and heated it up and it came right off with a putty knife
     
  7. yellow75

    yellow75 MCCI Oregon State Rep Supporting Member

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    I was reading that if it is in an area that you can apply dry ice to it from either the top or by laying the ice on it it almost falls off . Seems like there would be far less mess than heating it up . If you were able to use a can of compressed air sprayed on it with can upside down that would freeze it as well
     
  8. Powerband

    Powerband Member

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    .. thanks for replies. Never simple solution but likely use a few different methods in different places and needed tips and encouragement.
     

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