Am I doing something wrong?

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  • jsandidge
    Forum Sage
    Past Site Supporter
    • Jun 2013
    • 1482
    • Norfolk, Virginia

    #1

    Am I doing something wrong?

    I've blasted my frame to bare metal. I sprayed it down with phosphouric prep & etch, then rinsed it with water. The whole frame immediately is covered with flash rust. Am I doing something wrong? It does come off easily with a scotchbrite, but I wasn't expecting the rust.
    https://drive.google.com/open?id=0B9zH8w8Civs8ejBJWjdvYi1LNTg&resourcekey=0-hlJp0Yc4K_VN9g7Jyy4KQg&authuser=fussbucket_1%40msn.com&usp=drive_fs
    1983 GS750ED-Horsetraded for the Ironhead
    1981 HD XLH

    Drew's 850 L Restoration

    Drew's 83 750E Project
  • chuck hahn
    Forum LongTimer
    Past Site Supporter
    • May 2009
    • 25951
    • Norman, Oklahoma

    #2
    Thats the way it happens. Give the parts a rub with acetone right before priming and painting..nothing to worry about with the flash over.
    MY BIKES..1977 GS 750 B, 1978 GS 1000 C (X2)
    1978 GS 1000 E, 1979 GS 1000 S, 1973 Yamaha TX 750, 1977 Kawasaki KZ 650B1, 1975 Honda GL1000 Goldwing, 1983 CB 650SC Nighthawk, 1972 Honda CB 350K4, 74 Honda CB550

    NEVER SNEAK UP ON A SLEEPING DOG..NOT EVEN YOUR OWN.


    I would rather trust my bike to a "QUACK" that KNOWS how to fix it rather than a book worm that THINKS HE KNOWS how to fix it.

    Comment

    • jsandidge
      Forum Sage
      Past Site Supporter
      • Jun 2013
      • 1482
      • Norfolk, Virginia

      #3
      Thanks. After all that work with the blasting, I didn't want to have to do it over again.
      https://drive.google.com/open?id=0B9zH8w8Civs8ejBJWjdvYi1LNTg&resourcekey=0-hlJp0Yc4K_VN9g7Jyy4KQg&authuser=fussbucket_1%40msn.com&usp=drive_fs
      1983 GS750ED-Horsetraded for the Ironhead
      1981 HD XLH

      Drew's 850 L Restoration

      Drew's 83 750E Project

      Comment

      • chuck hahn
        Forum LongTimer
        Past Site Supporter
        • May 2009
        • 25951
        • Norman, Oklahoma

        #4
        It happens in less than 10 minutes and its nothing in the end. Its not "eating at the frame" or gonna cause it to "rust out from under the paint". Wipe it down right as your getting ready to prime with acetone. Acetone rapidly evaporates and doesnt leave a residue behind.

        Wipe it right now with your finger and it will be gone!!!!
        MY BIKES..1977 GS 750 B, 1978 GS 1000 C (X2)
        1978 GS 1000 E, 1979 GS 1000 S, 1973 Yamaha TX 750, 1977 Kawasaki KZ 650B1, 1975 Honda GL1000 Goldwing, 1983 CB 650SC Nighthawk, 1972 Honda CB 350K4, 74 Honda CB550

        NEVER SNEAK UP ON A SLEEPING DOG..NOT EVEN YOUR OWN.


        I would rather trust my bike to a "QUACK" that KNOWS how to fix it rather than a book worm that THINKS HE KNOWS how to fix it.

        Comment

        • Nessism
          Forum LongTimer
          GSResource Superstar
          Past Site Supporter
          Super Site Supporter
          • Mar 2006
          • 35808
          • Torrance, CA

          #5
          A little flash rust is nothing to worry about, although I agree that it's a little disconcerting. When doing my frame I dried it as quickly as possible using towels, a leaf blower, and a propane torch.

          Ed

          To measure is to know.

          Mikuni O-ring Kits For Sale...https://www.thegsresources.com/_foru...ts#post1703182

          Top Newbie Mistakes thread...http://www.thegsresources.com/_forum...d.php?t=171846

          Carb rebuild tutorial...https://gsarchive.bwringer.com/mtsac...d_Tutorial.pdf

          KZ750E Rebuild Thread...http://www.thegsresources.com/_forum...0-Resurrection

          Comment

          • chuck hahn
            Forum LongTimer
            Past Site Supporter
            • May 2009
            • 25951
            • Norman, Oklahoma

            #6
            Dont let it sit in an unheated garage for the next 6 months though!!! Yeah I know your on top of it...LOL
            MY BIKES..1977 GS 750 B, 1978 GS 1000 C (X2)
            1978 GS 1000 E, 1979 GS 1000 S, 1973 Yamaha TX 750, 1977 Kawasaki KZ 650B1, 1975 Honda GL1000 Goldwing, 1983 CB 650SC Nighthawk, 1972 Honda CB 350K4, 74 Honda CB550

            NEVER SNEAK UP ON A SLEEPING DOG..NOT EVEN YOUR OWN.


            I would rather trust my bike to a "QUACK" that KNOWS how to fix it rather than a book worm that THINKS HE KNOWS how to fix it.

            Comment

            • jsandidge
              Forum Sage
              Past Site Supporter
              • Jun 2013
              • 1482
              • Norfolk, Virginia

              #7
              Originally posted by Nessism
              A little flash rust is nothing to worry about, although I agree that it's a little disconcerting. When doing my frame I dried it as quickly as possible using towels, a leaf blower, and a propane torch.

              Hope no one is offended by nudity on this site. Nice birthday suit!
              https://drive.google.com/open?id=0B9zH8w8Civs8ejBJWjdvYi1LNTg&resourcekey=0-hlJp0Yc4K_VN9g7Jyy4KQg&authuser=fussbucket_1%40msn.com&usp=drive_fs
              1983 GS750ED-Horsetraded for the Ironhead
              1981 HD XLH

              Drew's 850 L Restoration

              Drew's 83 750E Project

              Comment

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