How to Use a Screw Extractor | Remove snapped off bolt from engine



hello welcome back to the channel well you guys been following my newest videos lately you'll know that I broke off a brass connector show you guys here real quick that one right there the one that zoomed in the most that receiver connector broke that baby off inside the block on the short block 302 basically right where you see the head is where it snapped off because idiot me over tightened it which I don't normally do so I don't know why I did that but the only way to get that out which I have found is to use an extractor a fluted screw extractor kisses which are these guys right here and let me explain real quick how these work these are reversed rotation so typically you know right would be tighten and you would think that right would threaded in but actually the way these work is left tightens it in so you turn it left hand or counter clockwise and basically it drives the extractor into the receptacle of the broken screw ER or in my case brass plug and then as you tighten it in the taper on it increases and basically theoretically what it's supposed to do is at a certain point it's not going to the taper is not going to go in anymore so whatever is in there it's gonna be forced to come out okay so that's in theory helping to work and I've had good and bad experiences with these but quite honestly I'm really let's bring you over here to the motor I'm really at the mercy of this because the last thing I want to do is ruin this block or have to drill and deal with metal shavings in this engine because if anybody's been following my channel for any like the time they know we got a lot of freaking time into this engine so I kind of wanted to just do a video demonstrating how this actually works because somebody some people may not know or if you just broke something off in your block and you're kind of like now I do I do this might help you so let me try to hold my camera in a way where I don't make you have vertigo here unless let's show you what what I got started here so you can see what's going on so like I said we broke off the sending unit brass plug here in the block and let me hit my zoom here let's get you in there so here no and you know what actually one more second guys I do have a light to help us out this time plug it in here I'm plugging in my light hold on okay so let's bring it in here get my bearings again there we go okay so now that I have my light going on here and my extractor you can see that it's starting to back out the problematic plug that broke off and I'll give this a second to focus here come on shitty camera anyway you can see it's starting to back off there so what I'm gonna do is go ahead and try to very creatively tape me doing this and basically what I have here is my wrench socket wrench attached to the extractor because I can't get a drill in here and honestly I didn't really want to go start to spinning a drill this close to the engine so let me go ahead and zoom in and I'm going to show you kind of how I back this out so I'm just turning left hand with nice clean force on the ratchet this is not something you want to rush because at this point we got pretty lucky so you don't want to you don't want to rush this so basically just threaten this baby out thank god it's coming out you have no idea how happy I am and this these work really great when they want to work so this is basically when you're at the point of you know trying to you know cuz because what I could have done essentially is threaded in a bowl and block this off they don't make and if anybody can find this this is a challenge try to find a 3/8 by 16 male threaded brass anything and I guarantee you can't find it and if you can put the link below and prove me wrong so I know that my nearly three hours of searching on Google to try to find something the thread into this wasn't for nothing and there we go so let's show you how that worked there's the extractor inside the brass plug and there's our whole beautiful ready for the proper fitting that doesn't snap off in there so there it is in a nutshell let me zoom out hole is clear the bastard brass plug is out and it was all made possible by the amazing spiral extractor and these extra oh yeah one more thing I want to know take these extractors are tempered they're heat treated and they're extremely strong so if you start forcing an extractor in your engine or in anything and you snap it off you're going to have a hell of a time trying to drill it out because your drill bit is going to be a softer metal than your extractor bit and then your extractor and it's going to bring a lot of challenges so what I'm trying to say here is don't force something that's not meant to happen if the extractor is going in without if it's going in with problems and it's not providing ease then you're gonna want to back off and think of another option before you create an even bigger problem which is also part of the reason why it's decided to do this by hand and not with a drill so luckily that oil filter down there is in the way where I couldn't use my drill or else perhaps I would have started trying to use my drill so anyway guys thanks for watching the video about seven minutes here I've explained how to use this but I I get a lot of good comments on my videos a lot because people are like yeah I really appreciate you taking the extra time you know to explain it you know properly and go into detail so for those of you that don't like the length tough ship anyway guys thanks again for watching follow and subscribe and all that good good and I will talk to you soon next time I got some progress on this engine

34 Comments

  • Rick SC

    April 15, 2019

    Easy on a soft metal like brass. Try it on a stainless screw that broke off. If you have just a little to grab onto sometimes you can use vise grips to grab hold and unscrew it. Otherwise these are usually a nightmare no matter what you try.

    Reply
  • Forgive Repent

    April 15, 2019

    HOW DID YOU GET THE EXTRACTOR IN THE BOLT FIRST ? DID YOU USE A DRILL?

    Reply
  • Richard Viglucci

    April 15, 2019

    You could eat off that engine! Do you intend on driving it when you’re not making eggs Benedict?

    Reply
  • puppet619sd

    April 15, 2019

    What drill bit type is best to drill into a broken bolt?? Thanks in advance

    Reply
  • Darrell Bailey

    April 15, 2019

    Anti seize anything that goes in the block!!! An if at all possible use a t handle that goes on a tap instead of a ratchet if you can ! That way equal pressure all the way around the extractor .

    Reply
  • irre levant

    April 15, 2019

    I want to know what socket you used at the end the extractor? I have one just like your and it won’t fit any of my sockets… please help. You we lucky. Great video

    Reply
  • Dave Allum

    April 15, 2019

    Just like making love to your woman..
    If there is some heavy resistance.. Back off..

    Reply
  • Cutter Spaulding

    April 15, 2019

    I soooo need a set of those! LOL

    Reply
  • Zoran D

    April 15, 2019

    great video…. I didnt know screw extractors even existed! my question though is… how do you get the screw extractor onto the broken crew? do you have to drill a hole in the broken screw stud? or is there any other way?

    Reply
  • Isidro Hernandez

    April 15, 2019

    Hopefully this works on my damn spark plug that broke off lmao

    Reply
  • JB Johnson

    April 15, 2019

    Two things aren't clear. One, how did you get it to go into the bolt? Did you tap it in, screw it in, etc.? What tool did you use and in what direction did you turn to drive it in, if any? Two, there seems to be a contradiction. At the beginning, you said that lefty was tighty in this case. But, when you removed the bolt, it appeared to be turning to the left. Great video and awesome camera work, but you really shorted us on the most important details.

    Reply
  • justinspirational

    April 15, 2019

    Thanks for your video-I have a small bolt with its head sheared off stuck in its threaded hole below a recessed counter sunk hole. See this image for reference.. http://imgur.com/gallery/Vyhw45F it's a delicate situation on my electric skateboard..I need to remove this bolt asap without damaging the thread of the hole the bolt is in so that after extraction a new bolt can be screwed in again..I have a damaged screw extractor bit set (drill in reverse a hole in the end of the bolt with one end of the bit and then extract afterwards with the other end of the bit also with the drill in reverse).. How can I prevent the screw extractor drill bit from slipping/damaging/stripping the bolt hole thread and ensuring it stays centered? Use a hand center punch to make an indentation somehow in the end of the bolt to keep the extractor drill bit in the center or any other tools you suggest? I greatly appreciate your feedback asap on how you suggest I do this successfully as I can't afford to damage the bolt hole's thread but can't delay sorting this out much longer.. Thanks again! ?

    Reply
  • Jason Rowlett

    April 15, 2019

    Beautiful job on your engine. I am restoring a Dodge 360 5.9l short block. What was your greatest challenge rebuilding your 302?

    Reply
  • Troy Rodgers

    April 15, 2019

    What socket did u use on the extractor?

    Reply
  • Taline Calandrino

    April 15, 2019

    I gotta do this on my turbo rip but tbh this is way easier than fighting with the flange+nut+stud combo in no space??

    Reply
  • Matt Garza

    April 15, 2019

    I just broke a water pump bolt off. It's going to take a while to drill a hole of the proper size that will allow an extractor to get in. Damn! I'm surprised how easy it was to break off one of the bolts.

    Reply
  • Dylan Mounsey

    April 15, 2019

    I bought one of these for two broken exhaust mani studs on my cylinder head and I’m fucking nervous to giver a go lol any words of wisdom?

    Reply
  • Clint Burns

    April 15, 2019

    Good video, I normally just drill them out but I'm going to give this a shot.

    https://www.mcmaster.com/92941a620

    McMaster-Carr has them in all kinds of sizes and they ship fast. Same thing with Grainger and Fastenal, but they might have a location near you. For whatever reason, they don't show up on google searches.

    Reply
  • tanveer khan

    April 15, 2019

    My mate has broken a extractor which caused a lot work for me I had to spark erode the extractor out

    Reply
  • Thomas Bradshaw

    April 15, 2019

    This is all fine and dandy but what about hardened bolts that are bottomed out? ?

    Reply
  • David Morris

    April 15, 2019

    Thank u

    Reply
  • Rick Reid

    April 15, 2019

    Good video. Thanks

    Reply
  • dvalle1100

    April 15, 2019

    How does the extractor screw into the brass plug? You already had it in? It is metal grinding on metal so a ratchet will start to drill it in?

    Reply
  • jason parkinson

    April 15, 2019

    Thanks, hermano.

    Reply
  • MskellyII

    April 15, 2019

    Just happened to me today with the oil pressure on a sbc 305. This video made me feel better.

    Reply
  • Rex Anderson

    April 15, 2019

    A left hand drill bit might be better.

    Reply
  • TFR

    April 15, 2019

    My 1967 mustang coupe had tons of snapped, rounded and rusted bolts I used this on. Thanks for the video brother.

    Reply
  • Robin Breeds

    April 15, 2019

    cool

    Reply
  • xxdjcharlierockxx

    April 15, 2019

    broke off the long bolt to the brake caliper and somebody mentioned a kit from harbor freight and was wondering if this would work

    Reply
  • laughingsquaw53

    April 15, 2019

    Thank you so much for sharing your knowledge

    Reply
  • Koa Kaleopa'a

    April 15, 2019

    I've spent 3 hours trying to figure THIS problem out!! Mahalo for the help, time to extract this bolt!

    Reply
  • John Dasilva

    April 15, 2019

    Also do you rotate the ratchet counter cloakwise to remove it?

    Reply
  • John Dasilva

    April 15, 2019

    What socket is used to hold the extractor

    Reply
  • Reuben Alejandro

    April 15, 2019

    Hey thanks for sharing. What did you use to fit your socket wrench on the extractor bit ? My extractor bits have a square end and none of my sockets are squares, all hex and I couldn't find any squared socket bits

    Reply

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