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  • Glass beading crankcase

    Hello all,
    Have an 1958 FL that needs going over....
    Is glass beading the cases a good idea are there other methods the way to go...
    Worried about left over debris causing harm to new internal engine parts...
    Thank you!!

  • #2
    Welcome, Steve!

    Just coat the insides...

    (Unfortunately, both Gasoila and Glyptal failed in my fuel immersion tests, which would simulate a bad petcock on an OHV. So I haven't many suggestions..)

    ...Cotten
    Last edited by T. Cotten; 11-04-2019, 04:25 PM.
    AMCA #776
    Dumpster Diver's Motto: Seek,... and Ye Shall Find!

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    • #3
      Hot tank? Vapor blasting?

      Depends a little on your aesthetic desires a bit, I think.

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      • #4
        Yes... I was looking at vapor blasting... just need to find a vendor for it... definitely want to clean up the outsides
        Thank you!

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        • #5
          Thank you! Last time this engine was done was the eighties... hope I like what I find....
          thank you all!

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          • #6
            Simply scrubbing with detergent and water will make a big difference. Abrasive blasting should be avoided. Baking soda blasting is safe, but will change the appearance somewhat.

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            • #7
              Golly Steve!

              I'd certainly throw detergents at it before money.

              Pine-Sol!

              Some swear by it.

              ....Cotten
              PS: But they say its got to be the real thing.
              AMCA #776
              Dumpster Diver's Motto: Seek,... and Ye Shall Find!

              Comment


              • #8
                Thank you! This is what I was thinking....

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                • #9
                  Originally posted by T. Cotten View Post
                  Golly Steve!

                  I'd certainly throw detergents at it before money.

                  Pine-Sol!

                  Some swear by it.

                  ....Cotten
                  PS: But they say its got to be the real thing.
                  Thank you! Will try this...

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                  • #10
                    And please note, Steve..

                    HD coated inside their cases,...

                    Even though they were (probably) never blasted.

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

                    Comment


                    • #11
                      Originally posted by T. Cotten View Post
                      Welcome, Steve!

                      Just coat the insides...

                      (Unfortunately, both Gasoila and Glyptal failed in my fuel immersion tests, which would simulate a bad petcock on an OHV. So I haven't many suggestions..)

                      ...Cotten
                      Cotton,
                      Have you done any tests on Ethanol free fuel?

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                      • #12
                        Originally posted by larry View Post
                        Simply scrubbing with detergent and water will make a big difference. Abrasive blasting should be avoided. Baking soda blasting is safe, but will change the appearance somewhat.
                        Good advice. I don't glass bead any motor parts, and particularly aluminum castings. I clean castings in our laundry sink and use anything from TSP, Comet, Dawn, scrub brushes, scouring pads, and tooth brushes. You'll never make your cases look like they did when H-D put them in a frame, but you can come close.
                        Eric Smith
                        AMCA #886

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                        • #13
                          I've found embedded glass beads in the surfaces of carefully cleaned aluminum castings, and in other very bad places (behind races, blind threaded holes, inside oil passages, snap ring grooves, etc.).
                          A few thousand vibrations later, they reappear and flush through the oil system as an abrasive slurry.
                          The Linkert Book

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                          • #14
                            Originally posted by kitabel View Post
                            I've found embedded glass beads in the surfaces of carefully cleaned aluminum castings, and in other very bad places (behind races, blind threaded holes, inside oil passages, snap ring grooves, etc.).
                            A few thousand vibrations later, they reappear and flush through the oil system as an abrasive slurry.
                            Wow.... exactly what I feared... Does not sound like a recipe for a long running motor... Thank you!

                            Comment


                            • #15
                              A friend, as an experiment, blasted a piston. He then scrubbed it with detergent and hot water. He then put it in a pot of water and boiled it. When he finished, there was sand at the bottom of the pot.

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