If you think the slot you've cut gives you enough bite you can get decent torque on a screwdriver/whatever you're using, it may be worth trying the lubricant again. Put the bike on its side so the oil will drain down into the threads, and use a penetrating oil like pb blaster/boeshield/wd40 if you're not already. Flood that thing and let it sit for awhile more.
On Monday, March 13, 2023 at 2:14:41 PM UTC-5 Minh wrote: > oof tough situation. when you cut the slot and tried to unscrew, did you > use something besides a screw driver? like a wrench with a slotted > socket? that could give you more leverage. if you can get a small hole, > a torx driver could give you more grip, and same deal with leverage. since > you are unlikely to need this boss, i'd give it a little bit more effort > but at some point i'd also stop and just cover it up and leave it alone. > > On Monday, March 13, 2023 at 3:02:44 PM UTC-4 [email protected] wrote: > >> A hair dryer might give you enough heat to make a difference. >> >> Thanks for the drill guide tip, John. I'll definitely use that in the >> future. >> >> Will >> >> On Mon, Mar 13, 2023 at 2:08 PM JohnS <[email protected]> wrote: >> >>> Hello Ryan, >>> >>> The problem with trying to drill out a hole and using a big enough >>> easy-out bit to be effective is getting the hole centered. Easy concept, >>> but hard to do in reality since the drill bit wants to wander from center >>> until it grabs. Solution, create a guide for the drill bit so that it is >>> centered. >>> >>> Details: >>> 1. Sack up 6 or 8 M5 washer and slide them onto a M5 bolt. >>> 2. Using blue tape, tape the washer stack to the shifter boss and remove >>> bolt. >>> 3. Use a wire size #3 drill bit to drill into the bolt just slightly, >>> about 1/32 or 1/16 of an inch. >>> 4. Remove washers and drill a suitable hole for an easy-out to be >>> started, but not too big that the drill hits the bosses treads, still kind >>> of tricky. >>> >>> The #3 drill bit is snug fit for the M5 washer. A 13/64 bit is loose, so >>> I won't recommend that. I used this process recently to center a hole on a >>> 1/2" steel rod so that I could tape it for a M5 bolt. It worked great in my >>> situation since the rod isn't as hard as a bolt and I wasn't trying to use >>> an easy-out. Also, I used a drill press (one of my favorite tools). >>> >>> Good luck, >>> John >>> >>> On Monday, March 13, 2023 at 12:44:20 PM UTC-4 [email protected] >>> wrote: >>> >>>> Thanks all for your suggestions! I really appreciate it. I did work >>>> on this over the weekend, but unfortunately could not get it out. At >>>> first, I tried the slotting method - using a Dremel tool to cut a small >>>> slot in bolt, which I successfully did. I also added some lube and let it >>>> sit overnight. When I went to unscrew it, it wouldn't budge though. I >>>> think it's just torqued in there really tight. I don't have a blow torch, >>>> and didn't want to make the situation worse by potentially damaging the >>>> tubes or paint with this method. It's hard to see in the picture, but >>>> there really was absolutely nothing to grab onto, it was exactly flush >>>> with >>>> the boss. I did try hammering it a bit to try to rotate it, but it still >>>> wouldn't move. I might just try using some adhesive to glue on the stop >>>> on >>>> that side. I don't ever plan on putting a shift lever there, so it'll >>>> probably be ok. The biggest takeaway for me is to grease up the bolts and >>>> rotate them in and a out a few times, and to STOP screwing it in when I >>>> feel a lot of resistance. I am going to be much more careful whenever I >>>> tighten bolts from now on for sure! >>>> >>>> Ryan >>>> >>>> On Saturday, March 11, 2023 at 12:26:18 PM UTC-7 [email protected] >>>> wrote: >>>> >>>>> Ryan - Oh yeah - been there, done that! Here's one more trick >>>>> you can try that I've had success with. Start with lube as suggested >>>>> (maybe >>>>> lay the frame on its side so gravity can promote penetration of the >>>>> lube). >>>>> Apply some "gentle heat" with something like a hair blow dryer. After the >>>>> lube has had a chance to penetrate and you have it warmed it up use a >>>>> punch >>>>> or similar tool (small drift or even a screw driver) and wedge the tip >>>>> into >>>>> the dimple your drill bit formed (it looks like you may have one right on >>>>> the edge of the sheared bolt) Hold the punch with a firm grasp and begin >>>>> tapping it with a small hammer. The punch should be angled as much as >>>>> possible to direct the torque counterclockwise. Tap, tap tap - It will >>>>> take >>>>> at least a few dozen strikes. You may want to mask off the surrounding >>>>> down >>>>> tube with cardboard and tape to protect it in case the tip of the punch >>>>> slips. >>>>> >>>>> Let us know what works so we can all learn from your adventure. Happy >>>>> wrenching! >>>>> >>>>> On Friday, March 10, 2023 at 5:34:37 PM UTC-5 Patrick Moore wrote: >>>>> >>>>>> I did something similar with my 2020 Matthews: overtorqued a dry >>>>>> screw holding a front lowrider to the fork leg boss, and snapping the >>>>>> head >>>>>> off, leaving <1/8" of the shaft protruding. It was just barely enough to >>>>>> grab securely with needle-nose vise grips and with liberal applications >>>>>> of >>>>>> spray lubricant, patience, prayer, and 30 minutes of tiny back-and-forth >>>>>> rotation I got it out without damage to anything. >>>>>> >>>>>> On Fri, Mar 10, 2023 at 12:57 PM Brian Forsee <[email protected]> >>>>>> wrote: >>>>>> >>>>>>> Ryan, >>>>>>> >>>>>>> If you have a (very) small rotatory tool/dremel you can cut a slot >>>>>>> in there and then use a flat head screw driver to back the bolt out. If >>>>>>> its >>>>>>> not quite *completely* flush you can try grabbing it with some vice >>>>>>> grips too. >>>>>>> >>>>>>> Good luck! If you cut a little bit of a slot into the boss itself >>>>>>> that's probably no big deal, although depending how deep it gets it may >>>>>>> necessitate re-tapping the threads in there. >>>>>>> >>>>>>> >>>>>>> Brian >>>>>>> >>>>>>> On Friday, March 10, 2023 at 1:43:21 PM UTC-6 [email protected] >>>>>>> wrote: >>>>>>> >>>>>>>> Hello everyone, I've gotten myself into a bit of a predicament with >>>>>>>> one of my downtube bosses; I've sheared off the bolt flush with the >>>>>>>> brazed >>>>>>>> on boss (see pic below). Any ideas on how to extract it? I've tried >>>>>>>> using >>>>>>>> a drill extractor bit with my drill, but didn't work. >>>>>>>> >>>>>>>> Thanks! >>>>>>>> >>>>>>>> Ryan >>>>>>>> >>>>>>>> [image: 3DE5D487-0675-43CD-85A8-74193FE2964C.jpg] >>>>>>>> >>>>>>> -- >>>>>>> You received this message because you are subscribed to the Google >>>>>>> Groups "RBW Owners Bunch" group. >>>>>>> To unsubscribe from this group and stop receiving emails from it, >>>>>>> send an email to [email protected]. >>>>>>> To view this discussion on the web visit >>>>>>> https://groups.google.com/d/msgid/rbw-owners-bunch/74d6da74-7f70-4c24-892e-018fc9a33ba6n%40googlegroups.com >>>>>>> >>>>>>> <https://groups.google.com/d/msgid/rbw-owners-bunch/74d6da74-7f70-4c24-892e-018fc9a33ba6n%40googlegroups.com?utm_medium=email&utm_source=footer> >>>>>>> . >>>>>>> >>>>>> >>>>>> >>>>>> -- >>>>>> >>>>>> >>>>>> ----------------------------------------------------------------------- >>>>>> Patrick Moore >>>>>> Alburquerque, Nuevo Mexico, Etats Unis d'Amerique, Orbis Terrarum >>>>>> >>>>>> -- >>> >> You received this message because you are subscribed to a topic in the >>> Google Groups "RBW Owners Bunch" group. >>> To unsubscribe from this topic, visit >>> https://groups.google.com/d/topic/rbw-owners-bunch/5SEkGkrFsBQ/unsubscribe >>> . >>> To unsubscribe from this group and all its topics, send an email to >>> [email protected]. >>> To view this discussion on the web visit >>> https://groups.google.com/d/msgid/rbw-owners-bunch/7f0657af-0b74-4c00-a7de-27cbdee1eb2dn%40googlegroups.com >>> >>> <https://groups.google.com/d/msgid/rbw-owners-bunch/7f0657af-0b74-4c00-a7de-27cbdee1eb2dn%40googlegroups.com?utm_medium=email&utm_source=footer> >>> . >>> >> -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. 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