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Doing Evaporust cleaning with Petcock still in?

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    #1

    Doing Evaporust cleaning with Petcock still in?

    Hi all,

    So I am doing a Evaporust wash on my tank, the rust is not that bad, just a bit of minor surface rust but I want to go ahead and make sure its out of there. Unfortunately I'm having a hell of a time trying to find something to plug oup the petcock hole. I'm following BikeCliff's pdf file and everything has worked great except finding a plug for the petcock hole. I've been to 3 different hardware stores trying to find a rubber stopper that would fit. I've tried corks, tried caulking around it to seal it.. nothing works.

    Is there some way I can seal the fuel filter around the petcock and just reinstall that? I'll likely only have to have the evaporust in there for about 24 hours because as I said the rust isn't really that bad yet.

    Thanks for any input.

    Sean
    Tags: None
    #2
    Just rinse the filter well in water and blow it out with compressed air when done. And if you wiggle it ariound as you pull gently on it, it will usually come out of the base. In any case the petcock will need flushed when your done, so removal of the screen is not of any significant issue one way or another.
    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.

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      #3
      A small piece of aluminum, hardwood or plywood, a tongue depressor, hard plastic, anything which is easy to cut and drill. Shape it like the base of the petcock, drill bolt holes, it will cover the hole, make a gasket out of an old inner tube, it won't leak.
      http://img.photobucket.com/albums/v5...tatesMap-1.jpg

      Life is too short to ride an L.

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        #4
        Originally posted by chuck hahn View Post
        Just rinse the filter well in water and blow it out with compressed air when done. And if you wiggle it ariound as you pull gently on it, it will usually come out of the base. In any case the petcock will need flushed when your done, so removal of the screen is not of any significant issue one way or another.
        Thanks for your responses. If it's a minor amount of rust shouldn't the filter keep most of it out and then I can flush the petcock with water at the end? If not I will go try and get the materials together to make a plate, but just don't think I have an old inner tube or anything around. Mainly I just don't want to ruin the petcock, but at this point it has probably had minute amounts of rust in it.

        Comment

          #5
          This thread from the archives shows how to make some very simple plugs for the various tank openings. I've posted these same photos in at least half dozen other threads in the archives as well. http://www.thegsresources.com/_forum...d.php?t=192227

          I strongly advise against using the fuel sending unit, petcock, and gas cap to plug your tank for derusting purposes. Please invest 20 min. and make some proper plubs.
          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

            #6
            Originally posted by yerbluez View Post
            Thanks for your responses. If it's a minor amount of rust shouldn't the filter keep most of it out and then I can flush the petcock with water at the end? If not I will go try and get the materials together to make a plate, but just don't think I have an old inner tube or anything around. Mainly I just don't want to ruin the petcock, but at this point it has probably had minute amounts of rust in it.
            Yeah, don't use a short cut just to save some time, it ain't worth it. Follow the advice.
            sigpicMrBill Been a GSR member on and off since April 2002
            1980 GS 750E Bought new in Feb of 1980
            2015 CAN AM RTS


            Stuff I've done to my bike:dancing: 1100E front end with new Sonic springs, 1100E swing arm conversion with new Progressive shocks installed, 530 sprockets/chain conversion, new SS brake lines, new brake pads. New SS fasteners through out. Rebuilt carbs, new EBC clutch springs and horn installed. New paint. Motor runs strong.

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              #7
              Alright, thanks for the responses, I think I can make some sort of cover similar to those. I searched to try and find some photos but wasn't having much luck.

              Comment

                #8
                update

                Okay, just wanted to give an update for those who may have this problem later:

                A thin piece of wood and a old inner tube trick worked. At first I had trouble screwing back in the piece without the gasket getting bound up and twisted around the threads of the two petcock bolts, a little coat of oil along the gasket solved that problem. Of course after finally accomplishing a seal on the petcock hole, as I went to apply the 2" inch plug for the gas filler hole, I accidently dropped the red plastic piece and bolt into the tank (exactly as BikeCliff described not to do) ... but I purchased another and the tank is currently soaking in Evaporust. I'll figure out how to get that out in a couple days.

                Anyhow, this has been quite a frustrating process at times, but patience and perseverance is key as with any of this type of work.

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                  #9
                  Just curious could you wrap that rascal like the old Trojan commercials?

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