Announcement

Collapse
No announcement yet.

!$%*&@! Exhaust Bolts

Collapse
X
Collapse
 
  • Page of 1
  • Filter
  • Time
  • Show
Clear All
new posts
Previous template Next
    #1

    !$%*&@! Exhaust Bolts

    So I bought a donor engine off of CR due to the condition of the one I had. And I saw that the guy who hacked the bike apart decided he was in a BIG hurry and snapped the bolts off for the exhaust in the head.







    They have been soaking for 2 days in PB Penetrating Catalyst, WD40, and I have used a propane torch. They will not budge. I could use the Oxy/Ace torch, or bust out the Muriatic Acid?

    Suggestions?
    Tags: None
    #2
    slot them or weld something to them, heat, or take them to a machinest.

    left handed drills if they break off further.

    Comment

      #3
      Do you have access to a MIG welder? There is plenty of bolt there to weld a nut on the stub, and the welding heat will help break down the chemical bond. The key to removing those bolts is to work them back and forth, in and out, a little at a time. Keep them wet with PB spray and keep working them but don't use too much force or they will snap off.
      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
        Thanks, I never thought of welding a nut to them! I will give it a shot tonight.

        Comment

          #5
          no matter how hard a person tries...
          a lot of times these 30 year old bolts just snap.
          been there...done that.
          weld a nut one at a time and see if the seized part will come out while its still hot.

          Comment

            #6
            It's widely reported that a 50/50 mix of acetone and ATF makes the best penetrant for stuck bolts. Haven't tried it myself, but it seems like it's the way to go.

            Wouldn't the heat from acetylene be a bit much for the aluminum?

            Comment

              #7
              Originally posted by cableguy View Post
              It's widely reported that a 50/50 mix of acetone and ATF makes the best penetrant for stuck bolts. Haven't tried it myself, but it seems like it's the way to go.

              Wouldn't the heat from acetylene be a bit much for the aluminum?

              Acetone and atf works incredibly well.
              At least you can take the head to a professional with relative ease.

              Dont be in a rush an mess this up and no one mentioned easy outs but dont use em.

              Comment

                #8
                Originally posted by JEEPRUSTY View Post
                Acetone and atf works incredibly well.
                At least you can take the head to a professional with relative ease.

                Dont be in a rush an mess this up and no one mentioned easy outs but dont use em.
                What's wrong with easy outs? Can't get enough torque?
                '83 GS650G
                '83 GS550es (didn't like the colours in the 80's, but they've grown on me)

                Comment

                  #9
                  They will break off inside the bolt you are trying to drill out and don't come back out easily afterwards.
                  Cowboy Up or Quit. - Run Free Lou and Rest in Peace

                  1981 GS550T - My First
                  1981 GS550L - My Eldest Daughter's - Now Sold
                  2007 GSF1250SA Bandit - My touring bike

                  Sit tall in the saddle Hold your head up high
                  Keep your eyes fixed where the trail meets the sky and live like you ain't afraid to die
                  and don't be scared, just enjoy your ride - Chris Ledoux, "The Ride"

                  Comment

                    #10
                    If you havent already, save yourself some time and do the simple thing first. Respray with PBlaster and with a small hammer, just tap each one a few times. Tap, not strike. I work on construction equipment all day everyday and I get broke off bolts on a reglar basis. I have a 12 oz ball peen that has been the cause of more bolts coming out than my torch ever has. Then after wards you can weld a nut on them or slot them as you see fit. For the ones that may be sub flush, use a center punch. I have a couple impact screw drivers aswell with stud and bolt removers to help.

                    Comment

                      #11
                      Most of those should come out with a welded nut on them as you have enough thread to work with.

                      Easy outs that snap off need 'spark errosion' removal and that is highly specialist engineers shop in the UK which is hard to to source.

                      Comment

                      Previous template Next
                      Working...
                      X