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    Cylinder Head Stripping Suggestions

    What's the best method to safely remove all the paint completly from this project head pictured below. Interested in the cost of each, advantages & disadvantages. Here are some options, curious about others too

    1) Cold tank
    2) Hot Tank
    3) Transmission Dip Tank
    4) Media Blast
    5) Sand Blast

    1979 GS1000E (44 Yrs), 1981 GPz550
    Departed: 1970 Yamaha R5A, 1971 R5B, 1975 Honda XL250, 1983 Suzuki PE175, 1983 CB1100F, 1983 BMW R100RS, 1992 ST1100

    #2
    got my whole engine acid dipped when i rebuilt it long long time ago. Best thing ever. low price and very friendly. Whole motor came out spottless and about 2 tiny areas where not done. gave them some wd40 to spray the valve seats while it sat waiting to be picked up
    In australia so u wont be using them. But thats my advice. Probally ask vintage folks for best place

    Comment


      #3
      Bead blasting works well but the media gets into everything so you really should seal up all the various openings first, including the stud holes and intake/exhaust ports. In particular you need to be aware of the oil feed ports and clean them out if any grit gets inside. Suzuki pressed in plugs after gun drilling the ports, so they are a pain to clean (but still possible).
      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


        #4
        Anyone have experience with the other options

        1) Cold tank
        2) Hot Tank
        3) Transmission Dip Tank

        1979 GS1000E (44 Yrs), 1981 GPz550
        Departed: 1970 Yamaha R5A, 1971 R5B, 1975 Honda XL250, 1983 Suzuki PE175, 1983 CB1100F, 1983 BMW R100RS, 1992 ST1100

        Comment


          #5
          Be sure to use glass beads only on aluminum..walnut shells and such will gouge and pit the aluminum. Glass beads will leave a smooth satin finish to the parts. When i bead blasted my engines i went and bought corks to fit into the exhaust ports in the head and i put corks into the carb intake boots and tightened the clamps around the corks. That waybn you can bead blast everything and not get beads in the engines.
          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


            #6
            I dropped off my GS1100G head at A&P Cylinder Heads in Arvada, CO. and the owner has a heated tank with a solution which is safe for aluminum heads. He dipped the head in the hot tank overnight a couple of times and then glass beaded the head to remove all the black paint. He did the valve cover as well but that paint didn't budge so he had to remove all the paint with the bead blaster. Here are the pics.

            I will be painting the head once the valve & port work is complete and I am inclined to paint it stock GS silver, Can anyone chime in with paint recommendations which match the stock GS silver? Ed pretty sure you know









            1979 GS1000E (44 Yrs), 1981 GPz550
            Departed: 1970 Yamaha R5A, 1971 R5B, 1975 Honda XL250, 1983 Suzuki PE175, 1983 CB1100F, 1983 BMW R100RS, 1992 ST1100

            Comment


              #7
              Originally posted by chuck hahn View Post
              Be sure to use glass beads only on aluminum..walnut shells and such will gouge and pit the aluminum. Glass beads will leave a smooth satin finish to the parts. When i bead blasted my engines i went and bought corks to fit into the exhaust ports in the head and i put corks into the carb intake boots and tightened the clamps around the corks. That waybn you can bead blast everything and not get beads in the engines.
              Wallnut shell do not gouge aluminum

              Head turned out very nice by the way

              Comment


                #8
                Hi Steve,

                I used VHT Aluminum color engine paint on both my 1000S's. Used Por-15 Engine Enamel on the first S but had to redo it after it started to turn brown. The VHT is not the most chemically resistant though but I don't know of anything better other than maybe Gunkote which I have no experience with. At any rate, you will need to figure out a way to clean out the blasting grit from inside the oil galley runs. Suzuki plugged the oil galleys on the side of the engine so they are difficult to clean out. I forced a bunch of simple green in the galley and then flushed with tons of water. Would have loved to run a bottle brush down the galley but short of drilling out the plugs, which could be done, there is no access.

                What are you planning to do about dressing up the valve seats? Simple lap job? If you feel adventurous I have a set of Neeway cutters that can dress up the seats nice and pretty. Let me know if you want to discuss borrowing them.
                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


                  #9
                  VHT universal aluminun is what i painted mine with.Truck washed the head, DONT touch the surface and warm head and paint can in the sun then paint away. Use a rag dipped in petrol to clean paint away from where it was oversprayed and place in a oven for 60mins set on 120f. Hard as nails if done right. Never painted my tappet cover and never has been redone and i cant tell the differance,



                  Last edited by Guest; 04-17-2011, 09:15 PM.

                  Comment


                    #10
                    Sharpy and I disagree on the color match between the OE paint and VHT; I think VHT is duller gray and the OE paint more bright and silver. It does get harder with baking so that much is good although I also find VHT will turn soft with chemicals so if you spill gas on the engine, clean it up as fast as you can.
                    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


                      #11
                      Originally posted by Nessism View Post
                      Hi Steve,

                      I used VHT Aluminum color engine paint on both my 1000S's. Used Por-15 Engine Enamel on the first S but had to redo it after it started to turn brown. The VHT is not the most chemically resistant though but I don't know of anything better other than maybe Gunkote which I have no experience with.
                      Originally posted by Sharpy
                      VHT universal aluminun is what i painted mine with.Truck washed the head, DONT touch the surface and warm head and paint can in the sun then paint away. Use a rag dipped in petrol to clean paint away from where it was oversprayed and place in a oven for 60mins set on 120f. Hard as nails if done right. Never painted my tappet cover and never has been redone and i cant tell the differance,
                      Ed & Sharpy,
                      Can you guys check were you using the same VHT paint because I like what see from Sharpy's photo. I agree Ed the OEM paint is pretty bright & very silver. Check out the VHT links below. I am wondering what VHT SP# you guys were using?

                      http://www.jegs.com/i/VHT/322/SP127/10002/-1 Universal Aluminum

                      http://www.jegs.com/i/VHT/322/SP995/10002/-1 Nu-cast Aluminum
                      1979 GS1000E (44 Yrs), 1981 GPz550
                      Departed: 1970 Yamaha R5A, 1971 R5B, 1975 Honda XL250, 1983 Suzuki PE175, 1983 CB1100F, 1983 BMW R100RS, 1992 ST1100

                      Comment


                        #12
                        I used the Universal Aluminum. My guess is Nu-cast will be duller.
                        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


                          #13
                          Contacted VHT concerning which color is a brighter silver and here is their response . . .

                          Hi Steve,

                          Thank you for visiting the VHT website. We appreciate your taking the time to contact us.

                          There's not going to be what I would call a signification difference between the two, but if you want the brighter color I would recommend the SP-995 (Nu-Cast Aluminum).

                          Thank you again for your inquiry. Please let me know if you have any other questions.

                          Sincerely,
                          Eric
                          VHT Product Support
                          Last edited by srsupertrap; 12-29-2010, 12:00 AM.
                          1979 GS1000E (44 Yrs), 1981 GPz550
                          Departed: 1970 Yamaha R5A, 1971 R5B, 1975 Honda XL250, 1983 Suzuki PE175, 1983 CB1100F, 1983 BMW R100RS, 1992 ST1100

                          Comment


                            #14
                            I painted my Honda cb750 engine with VHT years ago. I'll +1 on gasoline softening it.
                            -1980 GS1100 LT
                            -1975 Honda cb750K
                            -1972 Honda cl175
                            - Currently presiding over a 1970 T500

                            Comment


                              #15
                              I was going to try paint stripper on mine.

                              Comment

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