HELP! Bolt extractor broke off inside CAB bolt hole

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  • ebox86
    E30 Addict
    • Sep 2012
    • 528

    #1

    HELP! Bolt extractor broke off inside CAB bolt hole

    So im in a bit of a pickle. I had a bolt break inside one of the CAB bolt holes on the drivers side CAB. The one is fine but the outer bolt broke inside the hole. Well now after trying to extract it, it seems i've used the wrong size bolt extractor and now the extractor is broke inside the hole. From my readers, these extractors are made of hardened steel

    Some people on other forums have suggested a bit made of carbide. I went to depot today to try their hardest titanium bits and the extractor just laughed at it.

    Heres a pic of the damage



    Any suggestions?
    '99 e46 323i - wrecked
    '87 e30 325iS - sold
    '91 e30 325i - sold
    '89 e30 M3 - fun car
    '09 e91 328i - sold
    '97 impreza - rally car - flipped
    '08 impreza - new rally car
    '01 996 tt - more fun car
    '82 Ford f350 - work truck
  • berlow94
    E30 Enthusiast
    • Jan 2013
    • 1063

    #2
    McMaster carr


    Sent from my iPhone using Tapatalk
    The best one-stop shopping for German car parts and lifestyle: http://www.gutenparts.com/

    Comment

    • ebox86
      E30 Addict
      • Sep 2012
      • 528

      #3
      any particular type of bit i should get? Just a quick search on their site and found this :

      McMaster-Carr is the complete source for your plant with over 595,000 products. 98% of products ordered ship from stock and deliver same or next day.
      '99 e46 323i - wrecked
      '87 e30 325iS - sold
      '91 e30 325i - sold
      '89 e30 M3 - fun car
      '09 e91 328i - sold
      '97 impreza - rally car - flipped
      '08 impreza - new rally car
      '01 996 tt - more fun car
      '82 Ford f350 - work truck

      Comment

      • ebox86
        E30 Addict
        • Sep 2012
        • 528

        #4
        I found these but wasn't sure if this would work, has anyone had first hand experience drilling into one of these?

        '99 e46 323i - wrecked
        '87 e30 325iS - sold
        '91 e30 325i - sold
        '89 e30 M3 - fun car
        '09 e91 328i - sold
        '97 impreza - rally car - flipped
        '08 impreza - new rally car
        '01 996 tt - more fun car
        '82 Ford f350 - work truck

        Comment

        • jlevie
          R3V OG
          • Nov 2006
          • 13530

          #5
          Yep you need a solid carbine drill. And it should be a left hand twist as that may back out the bolt stub as you drill.
          The car makes it possible, but the driver makes it happen.
          Jim Levie, Huntsville, AL

          Comment

          • Wanganstyle
            R3VLimited
            • Apr 2010
            • 2828

            #6
            You could try applying heat and making a slot for impact screwdriver. Sears or a auto parts store should have it.

            heat expansion will let the threads and bolt separate a bit.
            OBD1 M54/M52TU swap as a M50b25

            Z4 non powered steering rack fits e30



            Euro e46 2005/6 320d 6mt gearbox into E30 with M20 hardy and beck 1985 327s engine

            Comment

            • meanEG
              E30 Addict
              • Oct 2013
              • 562

              #7
              if you decide to cut the welded nut out i think i have a good frame rail section with a good set of them in there. you could cut a hole in the side of the rail and air chisel them off weld new one and reweld and seal.
              Looking for late model fogs, E39 Fog lights, cool cheap 17 5x120 wheels.

              Comment

              • ebox86
                E30 Addict
                • Sep 2012
                • 528

                #8
                I think im going to try heat with a blow torch to try and expand it and then knock it loose, carbide bit is on order tho

                thanks guys
                '99 e46 323i - wrecked
                '87 e30 325iS - sold
                '91 e30 325i - sold
                '89 e30 M3 - fun car
                '09 e91 328i - sold
                '97 impreza - rally car - flipped
                '08 impreza - new rally car
                '01 996 tt - more fun car
                '82 Ford f350 - work truck

                Comment

                • FLG
                  No R3VLimiter
                  • Sep 2011
                  • 3165

                  #9
                  Do you have access to a welder?

                  Could just weld a nut to it then use a socket or wrench to remove it all.
                  -Build http://www.r3vlimited.com/board/showthread.php?t=295277

                  Comment

                  • blusylver
                    Wrencher
                    • Feb 2013
                    • 230

                    #10
                    Originally posted by FLG
                    Do you have access to a welder?

                    Could just weld a nut to it then use a socket or wrench to remove it all.
                    This.

                    I have had to remove several broken extractors. I would take a Dremel and try to get the extractor as flat as possible. Also I had a set of left hand diamond tiped drill bits.

                    Also if your using the twist style extractors, do yourself a favor and throw those away and get the straight flute extractors.

                    Comment

                    • trkadct
                      Noobie
                      • Apr 2009
                      • 19

                      #11
                      I had a similar situation, minus the easy-out breaking off. I drilled out the bolt, ground the threads off a stud, hammered it in, then welded the circumference.

                      Comment

                      • ScHpAnKy
                        E30 Mastermind
                        • May 2009
                        • 1573

                        #12
                        Ran into the same issue last weekend, I got a beefy screwdriver roughly the size of teh whole, hammered it in, finagled the screwdriver into a 18v DeWalt drill and the bolt screwed right out with one punch of the trigger. YMMV, but it was really in there so I think that method should be a first shot

                        91 318i | 87 535iS

                        Comment

                        • Liquidity
                          Grease Monkey
                          • May 2014
                          • 395

                          #13
                          Originally posted by ebox86
                          Some people on other forums have suggested a bit made of carbide. I went to depot today to try their hardest titanium bits and the extractor just laughed at it.
                          Drills are not made of titanium. Even if they were titanium it's not harder than carbide or regular drills. Quite softer. What you bought are just regular old drill bits with titanium nitride plating (that gold stuff on them).

                          I suggest you just try the welder method if you haven't figured this out yet. Carbide bits are very expensive and they chip and break very easy if you don't take extreme care when using them.

                          Comment

                          • Aleman
                            E30 Mastermind
                            • Mar 2012
                            • 1582

                            #14
                            Take it to a shop. I broke off a front subframe bolt once, spent $200+ on tools, and ended up paying to get the bolt extracted by a pro. Same thing when I broke off the small bolt at the back of an M20 head where the water pipe attaches. Had to get it extracted at a shop. Broken bolts are HUGE pain in the ass. I feel your pain.
                            Last edited by Aleman; 06-10-2014, 03:24 AM.
                            R135 /// 1990 Alpinweiß II 325is
                            └┼┼┘ /// 1993 Black/Black Convertible (sold)
                            ..24

                            Comment

                            • bavarianbrawler
                              Noobie
                              • Feb 2013
                              • 33

                              #15
                              McMaster Carr - reverse-thread carbide drillbit so when you're drilling out the bolt it has a chance of grabbing and unscrewing it. Otherwise, it'll chew through the bolt easily. Penetrating oil before and during.
                              Last edited by bavarianbrawler; 06-13-2014, 04:28 PM.

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