CAB bolt...

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  • e30lyf
    R3V Elite
    • May 2007
    • 4516

    #1

    CAB bolt...

    Hi fellowes. We change the CAB and the bolt was broken. Theirs some tread lefted in the chasis. No idea how to take it off. I need your opinion pls. thanks a lot. :)
    - Fercy -

    BimmerHeads
    Classic BMW Specialists
    Santa Clarita, CA
    www.BimmerHeads.com
  • AlarmedBread
    E30 Mastermind
    • Sep 2006
    • 1510

    #2
    EZ outs/ lefthanded drill bits. Available cheaply at your local sears etc.

    Comment

    • BENdashdash
      Tom is not my friend
      • Aug 2004
      • 2506

      #3
      same thing happened to me. my $20 easy out snapped. im probably going to just drill it out tomorrow >_<

      Comment

      • Simon S
        No R3VLimiter
        • Oct 2004
        • 3758

        #4
        here's how I worked a broken CAB bolt out:

        1) soaked with PB Blaster.

        2) used a dremel with small cut-off wheel to grind a flat slot in end of broken bolt.

        3) heated broken bolt with torch (an effort to 'scare' it out and to temper it)

        4) soaked with more PB Blaster.

        5) then I took an inpact driver with a flat blade in the slot made in in step 2, and pounded that fucker out.
        -----Zen and the Art of e30 Maintenance - / - Zen TOC - / - Zen Summary

        Comment

        • e30lyf
          R3V Elite
          • May 2007
          • 4516

          #5
          Thanks, Whats PB Blaster?
          - Fercy -

          BimmerHeads
          Classic BMW Specialists
          Santa Clarita, CA
          www.BimmerHeads.com

          Comment

          • Jand3rson
            Banned
            • Oct 2003
            • 37587

            #6
            Originally posted by e30lyf
            Thanks, Whats PB Blaster?


            Most hardware stores will carry this. Buy the biggest can they have, it's always good to have around.

            Comment

            • PiercedE30
              R3V Elite
              • Apr 2005
              • 4220

              #7
              i had the same thing happen, but it snapped half-way in the hole. had to drill it out and retap it. worked so far.
              My 2.9L Build!

              Originally posted by Ernest Hemingway
              There are only three sports: bullfighting, motor racing, and mountaineering; all the rest are merely games.

              Comment

              • ErykTheRead
                Member
                • Apr 2006
                • 87

                #8
                Originally posted by e30lyf
                Hi fellowes. We change the CAB and the bolt was broken. Theirs some tread lefted in the chasis. No idea how to take it off. I need your opinion pls. thanks a lot. :)
                EZ Outs are a bad idea unless you want a broken piece of hardened steel in your bolt.

                PB Blaster is incredible stuff. Truly, truly amazing. Doesn't work so well unless it can get in there in the threads, but I have not broken a bolt since I started using it liberally and soaking for a day or two before going to work. Impact wrenches help a lot too to save bolts. Leaning on something with a breaker bar is way more inclined to snap a bolt.

                Left hand drills are the way to go. Just be very careful you don't break one of them, or you have the same problem you have with the easy outs - hardened steel that is a lot less inclined to be drilled out.

                Just keep stepping up the left hand drill size until you either come close to the bolt tap size or the threaded part backs out.

                If you have access to a welder, another option is to weld a rod in there, weld a nut on the rod, and try again.

                -E
                WTB


                Lots of good parts FS!

                Comment

                • xLibelle
                  R3VLimited
                  • Aug 2004
                  • 2673

                  #9
                  listen to this man! ^

                  Comment

                  • e30lyf
                    R3V Elite
                    • May 2007
                    • 4516

                    #10
                    thanks fellowes.
                    - Fercy -

                    BimmerHeads
                    Classic BMW Specialists
                    Santa Clarita, CA
                    www.BimmerHeads.com

                    Comment

                    • etxxz
                      R3VLimited
                      • Feb 2006
                      • 2085

                      #11
                      Originally posted by Simon S
                      here's how I worked a broken CAB bolt out:

                      1) soaked with PB Blaster.

                      2) used a dremel with small cut-off wheel to grind a flat slot in end of broken bolt.

                      3) heated broken bolt with torch (an effort to 'scare' it out and to temper it)

                      4) soaked with more PB Blaster.

                      5) then I took an inpact driver with a flat blade in the slot made in in step 2, and pounded that fucker out.
                      NO!!!:hitler:

                      there's "Easyout" (EZ out) and there's a lot of the same products called differnt names.

                      steps:
                      -NO OIL, NO DREMEL, NO HEAT. PB Blaster Before drilling okay.

                      -drill with a small drill bit right through the center 2-3~4cm so that the smallest or second smallest EASYOUT bit can be used

                      -Tap it in with a hammer...like a man.

                      -Twist bolt out using adjustable wrench or vice grip. should work 1st try...i've gotten exhaust manifold-block bolts out this way. rusted brake bolts u name it this is THE way.
                      No more e30s for me.
                      88 black BMW OBDII 332is dedicated track [sold]
                      88 BMW OBDII bronzit 332is [RIP 03/08]
                      91 BMW 325i [sold]
                      86 Corolla 'Ae86' HB 20v trd [sold]
                      http://youtube.com/watch?v=pTj7Hn9v5Rs

                      Comment

                      • mrsleeve
                        I waste 90% of my day here and all I got was this stupid title
                        • Mar 2005
                        • 16385

                        #12
                        ^^^^^^

                        Dude you have got it right but I would not use cresent wrenches, The hardened steel will crack off the edges of the square drive end off the ez out. Use either a tap wrench or a 12 point socket that fits the end, or there is lesiley (sp) tools new tap sockets.
                        Originally posted by Fusion
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