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    cleaning engine casing

    Hello everyone,
    Ive been seeing restored bikes that have the engine casings cylinders and heads nice and bright like they just came out of the factory,does anyone know how there doing this ? Ive seen plenty of stuff including oven cleaner,not sure about useing that though.As always any suggestions would be great.

    Thanks

    #2
    regarding aluminum side casing polishing, heres a thread thats very helpful...you'll need to remove the original clear coat. Aircraft paint remover spray available from autozone works fine.


    http://www.thegsresources.com/_forum/showthread.php?240084-How-to-clean-up-the-aluminum-cases&highlight=polishing+aluminum



    If you're cylinder color is silver, and you want to find a matching paint, everything you need to know is right here......

    You will need to completely degrease the engine casing before painting,

    Last edited by Pb9717; 03-08-2017, 08:42 AM.
    PB
    Central Jersey
    82' Suzuki GS750T


    "Old school is the best school"

    Comment


      #3
      Your post this morning inspired me to give polishing the rear drum hub on my Yamaha DT400C Enduro a go. A friend of mine lent me his buffing wheel, and I had a Harbor freight headlight repair kit in the shed. So with some water, a handheld power drill, the headlight kit, then finally the cotton buffing wheel with some white polish....here's the before and after..

      Before...


      After



      The whole job didn't take an hour, and the headlight kit is a whopping 13 bucks, and I only used 2 of the pads in the kit. The buffing wheel, that was a loaner, but can be had for, I think around $100 bucks at harbor freight.

      Hope this inspires you.....
      PB
      Central Jersey
      82' Suzuki GS750T


      "Old school is the best school"

      Comment


        #4
        Casings, cylinders and heads get that clean from media blasting when the engine is completely disassembled
        1978 GS 1000 (since new)
        1979 GS 1000 (The Fridge, superbike replica project)
        1978 GS 1000 (parts)
        1981 GS 850 (anyone want a project?)
        1981 GPZ 550 (backroad screamer)
        1970 450 Mk IIID (THUMP!)
        2007 DRz 400S
        1999 ATK 490ES
        1994 DR 350SES

        Comment


          #5
          I am in the process of restoring a GS650E and am about to start on the engine cleanup. You can see my previous attempt here on a GS1000S.

          http://www.thegsresources.com/_forum...-Rebuild/page3 Post #98

          First off, to remove the majority of the road grim and oil off the engine I use some form of Simple Green or an Orange Citrus cleaner degreaser in a spray bottle, after application, I power wash it with an electric pressure washer, usually around 1500 PSI max and try not to spray too close to the exhaust or inlet ports even though I've installed caps inside them and sealed them, water still finds it way in there.

          Gas powered pressure washers are usually too powerful and will force water past the seals and gaskets, unless you are going to tear the motor down right away I'd steer clear of those.

          Easier to do if you remove the engine and it only takes another hour or so once the Fuel tank, carbs etc. are off.

          Use a fine stainless or steel wire brush to get into the fins to loosen any corrosion or debris, also a stiff nylon bristle brush can work as well.

          As far as painting, it's better to disassemble the engine to do it properly or should I say thoroughly and another vote for VHT SP127 Universal Aluminum as it's about as close as you can get.

          As far as polishing engine cases which you need to do something with them after repainting the engine here is a good overview from Caswells.



          Good luck and post some pictures to show us how it turned out.

          David
          2018 Honda Africa Twin AS
          2013 DR 650 Grey, sold 1981 GS 650E Silver,

          1980 GS1000ST Blue & White, X2

          2012 DL650 Vstrom Foxy Orange, in storage
          1981 CT110 X2 "Postie Bikes" Gone to a New Home.
          2002 BMW 1150 GS Blue & White - Sold
          1975 BMW R90/6 Black - Sold 1984 GS1150EF Sold
          1982 BMW R100 Africa trip, Stolen - Recovered- Sold
          1977-1980 Suzuki GS550, GS1000E, GS1000S GSX750, GSX1100,s
          Hondas ST90, CR125 CB175 , CB350 CB750, NSU Quickly, Yamaha RD's 350/400,

          Comment


            #6
            The process your probably seeing is called vapor blasting. Its amazing. Check this one out, https://www.youtube.com/watch?v=KqHcSVLB9fw then search a couple more. Big, flat surfaces are fairly easy to do but when you see this process and you want perfection this is the way to go. Its not cheap but in my opinion, it looks better than new.
            Current Rides: 82 GS1100E, 00 Triumph 955 Speed Triple, 03 Kawasaki ZRX1200, 01 Honda GL1800, '15 Kawasaki 1000 Versys
            Past Rides: 72 Honda SL-125, Kawasaki KE-175, 77 GS750 with total yosh stage 1 kit, 79 GS1000s, 80 GS1000S, 82 GS750e,82 GS1000S, 84 VF500f, 86 FZR600, 95 Triumph Sprint 900,96 Triumph Sprint, 97 Triumph Sprint, 01 Kawasaki ZRX1200, 07 Triumph Tiger 1050, 01 Yam YFZ250F
            Work in progress: 78 GS1000, unknown year GS1100ES

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              #7
              If you do media blast it be SURE to thoroughly clean it, the media is incredibly abrasive. Run the parts through the dishwasher a few times while the spouse is out....
              sigpic
              09 Kaw C14 Rocket powered Barcalounger
              1983 GS1100e
              82\83 1100e Frankenbike
              1980 GS1260
              Previous 65 Suzuki 80 Scrambler, 76 KZ900, 02 GSF1200S, 81 GS1100e, 80 GS850G

              Comment


                #8
                Small wire brushes, a wire wheel chucked in a drill motor and quite a few Scotchbrite pads.

                Are you doing a restoration project of some kind on a GS? Let everyone see what you are doing by posting the details here.


                Eastwood engine paint...
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                Last edited by rustybronco; 03-10-2017, 03:18 PM.
                De-stinking Penelope http://thegsresources.com/_forum/sho...d.php?t=179245

                http://www.thegsresources.com/_forum...35#post1625535

                Comment


                  #9
                  Wow ! Beautiful job,yes im inspired !

                  Comment


                    #10
                    Thank you all ! some great ideas !!!

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