How To Heat Up A Nut or Bolt WITH OUT A Torch
ฝัง
- เผยแพร่เมื่อ 3 ก.พ. 2025
- In this video I show you how I heat up a bolt or nut using a method other than a torch. I show and use an inductive heater in this video to make a simple repair.
*Induction Innovations MD-700 Mini-Ductor II Magnetic Induction Heater Kit: amzn.to/2y3cWzv
*Induction Innovations MD99-660 Essential Coil Kit: amzn.to/2sTPqje
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Disclaimer:
Due to factors beyond the control of South Main Auto Repair, it cannot guarantee against unauthorized modifications of this information, or improper use of this information. South Main Auto Repair assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. South Main Auto Repair recommends safe practices when working with power tools, automotive lifts, lifting tools, jack stands, electrical equipment, blunt instruments, chemicals, lubricants, or any other tools or equipment seen or implied in this video. Due to factors beyond the control of South Main Auto Repair, no information contained in this video shall create any express or implied warranty or guarantee of any particular result. Any injury, damage or loss that may result from improper use of these tools, equipment, or the information contained in this video is the sole responsibility of the user and not South Main Auto Repair
*Induction Innovations MD-700 Mini-Ductor II Magnetic Induction Heater Kit: amzn.to/2y3cWzv
*Induction Innovations MD99-660 Essential Coil Kit: amzn.to/2sTPqje
South Main Auto Repair man i wish i had that set of tools. Im 26 so id say im getting there lol
110 bucks cheaper on fleabay
@@DieselRamchargerWhere defective parts are King.
I do not think it is "rust", that holds the bolt... Think about it, how many times did You actually taken out a bolt with rust on the thread? and yet it is allways that part of the bolt, that wont budge.
To my knowledge it is because of difference in steel grade between the bolt and the block of metall you screw it into, they expand/contract due to temperature change a bit differently, but enough to eventually lock the threads against each other.
The mini ductor sometimes works to remove stuck lug nuts with out destroying aluminum wheels
born and raised in my dad's repair shop/service station. we were the only ones in the area where customers would not only bring their cars,,but their lawnmowers,,motorcycles and the likes.
there is something about how you look at a repair,,that reminds me a lot of myself,,being taught by my dad,,who was the absolute best wrench in the business ( rest his soul---he passed away 6 years ago).
it's nice to see that there are others that actually FIX broken parts,,rather than run out and buy new. keep it up. loved the video. please make more.
Frank Castronuovo sounds like your dad was an awesome man. hope to meet him on the other side someday
"Toolbox full of tools and I'm here with a pair of pliers". I'm with ya!
That's really cool! I've worked in industrial environments for years and I never saw a portable inductive heater before that's pretty sweet!
I've been a mechanic for 45 years, you do a great job explaining and showing how to do things. I am old school and still learning alot. You've shown me tips and new tools. The future is in knowing electrical. I'm pretty good with electrical but not on your level. Thanks for all your help!!!
ahhh, the infamous inductor....i just came across your video...i used it at my truck shop....COTTER PINS were my kryptonite but this tool saved my job and many hours of stress.....when you have a $200 tie rod end with a rusted solid , broken , frozen cotter pin, the inductor does the trick with out frying the bushings inside the tie rods....great tool and great video
Best Auto Channel on you tube. I have been a Marine Mech for 30 years. You are a true Mechanic.
+ml2trick Excellent point, and I would say he is a true Technician. Diagnoses and finds out where the root of the problem is emitting from. Much respect! I've always been curious ml2trick about what you Maine Mechanics do on a daily basis. Im a flat rate line tech at a toyota dealership, but have an opportunity once upon a time to work on boats. How do you like it?
+ml2trick Thank you
Great video and you have the perfect attitude for a mechanic because patients is definitely a virtue when a person works on people's abused cars for a living.
Eric,
Had one for many years and it stilll works great. Very helpful when you are trying not yo burn up a grease or oil ladened area. Yes, you do have to change the adapters when they wear out. One thing I learned in my first engineering class (been an auto tech for 57 years now by the way) was to follow instructions. If you read the instructions on the final exam you saw that only three questions needed to be answered, but almost everyone did NOT do that. Saved me many hours of work!
Another thumbs up SMA production. 12:04..best.."something like this runs off of household current and it is relatively safe until it is not".
+Sandbag1300 Well that is true right?
Thank you. That line gave me the best laugh of the morning. The reason is that everything is safe until it is not.
It is the best advice I can give any one haha
Hey..I have to say..I watch as many youtube indestructibles as I need and can. But YOU.. are the most humble, helpful, insightful man I've come across yet in 10 years of searching the mechanic oriented videos. I'd send you a six pack of beer..or sompthin like that if only I knew where to send it. Oh well.. KUDO's to ya! Oh..btw.. I understand the physical shit too.. I'm 72. Thanks again!
20.000 subs. That's amazing and well deserved. Part of being a great mechanic is knowing how to get yourself out of trouble quickly and successfully. And no Brake cleaner either. Having the right tool for the job helps too.
I can't thank you enough, I spent about 2 hours doing that exact same job making a fully threaded bolt for a similar tensioning setup on an excavator never thought to put the die in the vise and use a drill I cut aver 100mm of threads with the die holder. thanks for the future time saver
Very ingenious way to make a fully threaded bolt, Eric you are the man 👍
very good videos using excellent diagnostic reasoning and skills. About 1960, the late Neil Houston, co owner of Houston Brothers Motor Co in Marshall, NC, showed me his method of loosening rusty bolts/nuts. Once the piece is heated to cherry red, if possible drop item in a bucket of water or quench immediately with water hose. Then instead of squeaking as your bolt did, once loosened 1 turn, you will be able to screw bolt out with your fingers and the rust will fall out as black powder. Keep up the good work
you just broke the 20,000 subscriber mark. not suprised the videos just get better and better keep up the awsome work
+Reece Redfern Thanks!
that thing is cool...you have no idea how much you are helping us do it yourselfers in our small home garages with these videos. keep it up
what is the use of or fun repairing paarts made of recyycled old parts? waste of time...it russty and haalf power!!!
South Main Auto is my favorite stuck bolt channel.
Super handy rig. I just bought one in early 2023 for $200. Great for brake bleeders among other things. Not just for steel, it works on aluminum, copper, brass, bronze. I use mine for annealing my brass cases for reloading.
The tighter the coil, the faster it works.
Congratulations on 20,000 Subs!!! Well deserved, best automotive channel on TH-cam!!
+Mike F Thanks!
Definitely is
what is the use of or fun repairing paarts made of recyycled old parts? waste of time...it russty and haalf power!!!
Mr. O, I'm quite impressed by your work! "This induction heater is amazing! Had to replace a fuel tank and the T.S.B. speaks of how rusty bolts need heat, but no flame. This saved my bottom a few times already." Yes, it's a bit expensive, but pays for itself very quickly. Thank you very much for showing the proper tools for the job, certainly makes it easier!
Cheers! :-)
This type of technology would have made the old board game 'operation' a heck of a lot more exciting lol. More seriously, watching you pull out specialty tools from that nice toolbox gave me the idea that shops should post up on their LABOR RATE sign, the amount of $$$ spent to date on proper tools, along with the shops annual overhead expenses. May have folks think twice before complaining about the high labor rates and they made be surprised at how much investment capital is at work keeping their cars safely on the road.
Excellent video. Always interested in "creative" tools for the DIY'er / small shop. I'm so glad to see that I'm not the only one who has the kind of start to a day as you did. Misery loves company?? I so appreciate your time/ talent/ wisdom and knowledge. You've made working on our vehicles achievable by giving us the most important tool in our toolbox to use and that's our brains.Awesome. Thanks
I think this is backwards. Guys at home would use a $20 Harbor Freight torch. Guys in shops would use a $440 induction heater.
LOL! Pretty much what I was thinking. Still a neat tool though.
Can’t wait to harbor has a $20 heat induction tool
It’s coming I’m sure
These can be made a lot cheaper
$440 wtf
I have a 1200-watt magnetic High Frequency induction heater with a couple dozen coils, free winding elements of different lengths, and flat coils. I also have torches, etc. This heater has some serious advantages over my oxy-acet torches, especially when using near rubber, paint, electrical, and plastics. This machine makes it so much easier to concentrate the heat better than the flames of the torch. Also, prices have fallen significantly over the past 10 years as well as the increase in power.
My induction heater cost $150 bucks and I use it all the time!
i don't always watch car repair videos but when i do, they're south main auto
People don't have ~$20 torch kit at home, so let's recommend them $431 Magnetic Induction Heater Kit, also $106 Coil Kit to go along with the heater kit, because $431 is not expensive enough - $537 total is just right! (prices current at the date of this post).
P.S.: You don't know how strong you are man :) Ripping bolts all day long :)
I searched for DIY Induction Heater and there's a power supply for like $10 & Banggood.com has one for $269.99 with the coils.
I am pretty sure if you have any type of welder if you hassle the manufacturer or community threads you can find ways to transfer heat to a solid metal object via conduction which is very much on par with this technology. If it's not an object not difficult to access, especially something small/portable can be able to have its chemical bonds broken by reverse electrolysis & Broax Washing Solution meant for washing clothes.
I don't have a torch, nor do I want the huge cylinders and the PITA of refilling them. You're damn right this is a viable alternative.
Started as young NCR tech, back when complicated, heavy geared, National Cash Register mechanicals were still built in Dayton Ohio. We used a carbon contact electrode device. Looked like large needle nose pliers with jumper cables, powered by a large 12-18 VAC transformer. The resistance between the carbons, then turned whatever was squeezed between the carbons, red, in minute or less. Thanks for great vids and technical diagnostic so rare today resulting in the "Parts cannon".. precious.. lol :>)
You probably already know this but years ago an old welder friend of mine showed me to squirt a little motor on the bolt when it's red hot, the heat sucks the oil down around the bolt threads and presto, the bolt screws out with ease.
Never heard of that heat inductor, I will get me one of those.
bplovescars nh
Been a machinist for 25yrs. Grew up wrenching. I can appreciate the cordless impact threading method. Remember to forward some and reverse to break the chip. Nice job!
we also use induction heaters to warm things up in the oilfield. It's called a 3 pound shop hammer. Works wonders.
😂😂😂👍🤭
As a retired 40+ year mechanic it's nice to watch another "old school" tech. No throwing parts at it... ya fix it.
Those saying they will stick to torches have never been in a position as a mechanic whether it’s cars or heavy machinery and you NEED this tool. It’s a prized possession lol.
finally got me one after i took out a bolt near the gas tank with the torch, ...the heater is amazing!!!
“Made me pucker a lil bit, and I said ‘woah’” lol I like your style man
I must have been living on a different planet then you for the last 70 years I haven't even ever heard of the inductive heater. Lol. Thanks man.
How To Heat Up A Nut or Bolt WITH OUT A Torch -- Just get married.
Yea.. I'm the machine shop guy that curled up a little.
But, you got it & it'll work. That's the name of the game.
Thanks for the video.
Sure. For us, at home newbies, who don't have torches, it makes perfect sense to take out our induction heater :D.
As a ex-flat rate mechanic I got a kit for 800 bucks. It paid me back in half a year. No burning stuff up. Best deal was those tri-nuts on old Chevy trucks. Also it lights cigarettes, lol
Good god man, the negative comments on here makes my head spin. Haters everywhere it seems... I never thought I’d own a $4,000 Norco power train lift for my personal garage but low and behold I scored one for $500. I think the point of the video is to enlighten people to its existence and function. Maybe you’ll come across one at a surplus sale for pennies and being open minded and aware, boom! You just scored yourself a tool you never thought you’d be able to own...
Another great super expensive machine is the laser rust remover. Can't wait for that to become cheap
This was very informative, I knew these inductive coils existed but did not know they had been modified for portable shop use. The price is a little high for the home DIY guy. When I have a cramped space where i cant use a torch, I have had success with a heat gun from harbor freight. Thanks for stopping what you were doing to share this information.
Joe
This is the answer for homeowners without a lift. Where we are on a creeper with the frame six inches from our face. A torch is really out of the question.
Best tool I've purchased! I own 5 Jeep XJ's. This tool is my best friend!
Inductive Heater 😂 I think people at home might have a torch before one of those
This is a year old comment but an inductive heater is 1/3 maybe 1/4 the cost of a torch so they may just have the heater.
@@johnghatti5435 Yes, and with care can be used beside a leaking gas tank.
@@johnghatti5435 k oh
simple heat gun is like 50 bucks 1200°
Then try not to think too.much
The first I heard of Induction heating, was when I worked CAT gear factory in 1978. I was an inspector in heat treat department for about 6 months, and they used induction to heat treat gears and shafts. The machines they used had centers like a vertical lathe, or a fixture for say a bull gear. The coil went around the part as it turned and the coil advanced up the length of the surface to be hardened, while the quenching liquid sprayed on the part just below the coil. Very fast without heating up a huge furnace.
A 5 foot diameter, 600 hp electric motor ran the generator and on Sunday night at the start of 3rd shift, it took all of a half hour for it to get up to speed.
Came from Bigclive giving you a shout out !! Subbed too.
Congrats on 20k Eric. You deserve it and all to come. Your right some machinist just dropped dead of a heart attack. Lol. Oh well can't count how many times I've done the same thing. Looked like a grade 5, zip, zip, done!!!
This is what im looking for, an expensive alternative 😂😂😂
Eric O, You have just made me put my hands in my head in shame - not for the inductive heating but the amount of time I have spent trying to find fully threaded bolts for jobs... Ive tapped many a bar, but never a shanked bolt for some reason.. seams so obvious now but never thought of it. I will most definitely be ordering something from the store/stickers as a thank you!
old vid, but I didn't know such a thing existed. I'll wager they're not cheap. I have seen many a time when this thing would have been just the right tool. Three are many places on a car you do not want to use an open flame, while the heat on the bolt is okay, flames tend to go places you don't intend.
New to your channel, I've been a shade tree mech almost all my life and I think I learn something knew every time I watch one of your videos, You are the Man!
I know it's been some time since you put this video up. There has been some other TH-cam videos that have come out since then with the Chinese knock off of this tool. One TH-camr as he was videoing what he was doing plugged everything up went up to the exhaust bolt underneath the car turn the tool on and 5 seconds later a puff of smoke came out from the body of the tool.
I had made one of these from eBay parts a few years ago. The only bad thing is that practically have no use for it since it's impossible for me to get it under the hood of the car to use it on one of the bolts. It's basically a bench top tool. It's still comes in handy on certain things. When I'm working on mine or someone else's gun and trying not to break screws I can put the part into the coil heat up and then remove.
A lot of people really don't believe how he can make a difference. I have a good friend of mine who's quite a bit younger than myself and when we were working on the steering of my expedition we could not remove the pitman arm bolt and I told him just let me get the torch and heat it up. He insists that that would not work that he has dealt with stuff like this and just needed to spray some lube on it. 2 days later the bolt was still in place and this time I wasn't asking I went and pulled my torch out and in less than 2 minutes it came out with no problem at all. Now that he's a believer whenever he's working on something around the house he's using the torch all the time lol.
Like always I enjoy watching your videos and I always make sure even if it's an old or new one to hit the like button and of course the first time I hit the subscribe button also. I figured that's the least I can do with someone sharing knowledge.
Yeah,I'm the retired machinist your talking about,but the inductor was eye opening,thanks,very enjoyable info !
I find after getting it hot i cool it with water to break the rust works great every time. an old guy showed me that many years ago
Musta been the same old guy... That taught me that too. lol
Are you tempering of tryi g to get it apart lol jk
Years ago at an electrical shop in town that would rewind motors, I saw a rewinder take a huge Weller soldering gun, remove the tip, put on a homemade coil of stove or range high temperature solid wire, make a coil, install it on the Weller. He heated a 1/4” bolt & nut. It took about 5 minutes. I was always going to get one of the huge Weller guns to do it with. Now Bill is gone. This was late 70’s. About 77 or 78.
Hello from north east Montana.
Another good way is those cheap midsized butane torches. I've gotten quite a few seized lugnuts off on the side of the road and it also works as a wire stripper a soldering torch also will braze small copper pipes and the help heat up lunch if needed
Yep I use the small torches you buy at harbour freight or Princess Auto torch head is smaller than a regular torch so I can get into tighter areas and concentrate the heat where it’s needed. Just stay away from fuel and brake lines 😁
Thank you for all of us that have spent hours trying to remove rusted bolts, nuts etc. they make a smaller unit now. Pretty pricey. But hopefully worth it.
New sub here.. Love your channel..! Very personable and informative .. Keep up the great work!
We done , I do use the mini ductor and it is more compact now. It's well worth the money for a DIY'er like me and the cost is about the same as a set of tanks and hose- regulator setup plus it just runs on regular 120v . I've used it off my small generator making it portable . Up here their around $600 dollars but for me that's only 5 tanks of gas Haha.
These go for $250!!!
I can buy a small butane torch for 1\10th of that!
The inductive one is much safer, since you don't have to worry about torching surrounding rubber, fuel tanks\lines, or yourself. But for someone with only 1-2 cars that does his own work, I can't justify the investment.
Very good video, I worked most of my life making electric mining shovels, Towards the end we were using induction heating to pre-heat before welding. We could heat a piece 5 inches thick by 20' long to 400 degrees and maintain it while welding and bring it to a slow cool. Thanks for the nice videos.
+Glen Harper so it was a tad larger than mine huh
This is all right if you have the bolt and nut it's already been removed from the car. But if in most cases you have to get at something that's buried somewhere or even an exhaust bolt it would be considered useless
Your talent is teaching people. Keep on providing content.
Sometimes you can't use a torch. That's the point of the video. Yeah, it's a little expensive. Probably not as bad as a car fire. Just another option..
Thanks Eric.
I’m glad he’s doing some advertising. Many times I have wished for one of these working on classic cars, in areas where don’t want flame, or when you need serious heat control. Cool, cool.
I'm a machinest and I liked your way of threading fast and got er done.... Could go into all the bull about thread cutting pitch angles depths etc etc but no one can argue if it works.... I often turn nuts into dies for threading just by cutting grooves into the nut with Dremel cut off wheels.... And I have screw cutting lathe and cnc mills.... Often make my own taps in the lathe.... Just a question of how much time.... Often is faster to just make something than make a run to the store for a tool..... Besides there was a time when every thread was as different as fingerprints way back.....
I used to do induction brazing on International Harvester fuel lines. No matter how many lines I did I was always still amazed watching it heat, flow, and cool down.
Heyyyy guys, just a heads up, if the sleeves on your induction coils come apart, just get some universal Fiberglass Wire Sleeve/Insulating off fleabay and re-wrap the cables!
Thank you for the threading idea. I was working on a side by side with a missing long 3/8 nf thread and never thought about using my thread chaser that way and now the machine is up and running. Love your trouble shooting ideas and keep them coming
Cool tool
Will it remove exhaust bolts ?
I have been around automotive all my life and never seen or heard of one of these. They look and work amazing. Thanks for sharing this. I will be having one soon..lol
I use a full set of torches, but I also have a set of super small portable bottles of oxy acetylene. When you can't use that high heat open flame though, these induction heaters are the boss. I used one around the gas tank of a Caliber where an open flame of that magnitude was just too much, so much savings in scare factor by using induction.
Thanks for the help. I’m trying to break loose bolts on break caliper and wheel bearing. Ordered induction heater rather than flame by gas tank. Safety first when working at my house. Thanks again!
You can repair the worn or damaged insulation on your induction coils. Check electric motor repair websites it is sold by the foot and just slips on.
The mini ductor is really handy. Have had one for about 3yrs now and it really comes in hand for areas when u don't wanna break out the torches. Great vid Eric, Merry Xmas and happy new year to U and your Family
+and mechanic Merry Christmas to you too!
Eric- next time you use the bench grinder with the wire wheel; PLEASE use eye protection !!! In all the steel work I've done; I've seen those pieces of wire fly all over the place.. we only got 1 pair of eyes... thom ...
Just checked the SMA store and the Mini-Ductor 2 shows "Too low to display". AKA, $499. Gave me a chuckle after a long day, lol!
And here I thought you were going to use a battery and jumper cables.
congrats on reaching 20K subscribers! I didn't know such a tool existed. Thanks for another great video.
+nrehberg Thanks!
"South bend clutch" It's good to see South Bend around something positive!
Hey dude thanks for info, you should send a anonymous thank you card/letter to DOT for all that salt on the road. HA
I buy them donuts when I can haha
I have had a pacemaker for a number of years and have been shocked several times with electric fencing. Modern pm's are shielded from emf waves now but i was told not to use a chainsaw or work around cars. I found neither has caused any problem. Enjoy your videos.
Great. I don't have a $20 bottle of propane laying around so I'll just whip out my $900 gizmo from NASA. Why didn't I think of this before?
In what part of the video did I say it was a cheap alternative?
@@SouthMainAuto Just yankin' your chain. Enjoy your videos very much.
Lol. U naughty troll. Lol
I love to see you produce such professional quality videos. Tough to watch you use the wire wheel with out your safety glasses. Careful NYS Workers Comp police may be watching. They just love to increase your premiums!!!!!!
I was a tech for 10 years and the rusty bolt squeaking was music to my ears. Now the with listing to it not so much. Lol I love your videos keep them coming.
Ever take out a 02 Sensor with that tool?
Making threaded parts is so satisfying...never gets old
Nice Coffee mug w/ the Canadian flag!!
Damn, I wanted to see the blue flame. I'm as disappointed as the day they cancelled flame thrower day on me in the army. Really nice tool. One thing you said about using the inductor on cold vs hot metal. The cold will actually heat up faster than the warmer metal. We actually proved it in physics class. What happens is the cold heats up in a straight line where the warmer metal actually has to cool a bit first to match the heat from the inductor, not a big time lapse but it happens. I always try using the coldest water I can to make coffee. Works the same. One guy I met, put hot water in an urn thinking it would work faster, nope, it wasn't working at all. Thanks for sharing, Saw your Happy Holiday vide and forgot to say ' Happy Holidays ' and thanks for sharing.
The induction tool is great BUT a torch is available anywhere, requires no electricity, and for the cost of the induction heater and coils you could get a torch and enough propane to heat your house for the winter. For the AVERAGE person it's basically a rarely used toy. This is a tool more for a professional mechanic. I'm preparing to do a lot of work on my 17 year old Ford Ranger and there's a lot of rust under there. My torch is going to be getting a hell of a work out. Just need to be super careful. I'm more worried about burning myself then burning the truck down.
propane torch often not hot enough unless you mix oxygen.
Torches are illegal to use in many home shops because of municipal laws and also fire insurance policies.
Some of the best money I ever spent. I don't have to worry about melting everything around the area I am heating.
Blow torch - under $50 , Mini- Ductor - $450-$500 . It would take a long time for us diy guys to get the inductor to pay for itself and avoid castration from the wife . LOL
I second that...
Never knew they made a hand held version. This is good to know, thanks!
If you're expanding the nut with heat why wouldn't it make the hole small and grip the bolt even tighter? Genuinely would like to know
I think the trick is the expanding and contracting breaks the seal between the two and allows the bolt to spin.
Also the metal on the outside heats up quickly so expands releasing it from the inside component
Expansion with heat.
The outer piece always expands more . In physics class they heat up a ball and a circular rod ( like a washer). When both are cold, the ball wont go through. Heat both and the ball goes through the close fitting rod/washer. IN addition the heat breaks up the rust.
I don't see many engineers Quenching after the heat..... IT WORKS BETTER THAN ANY OTHER METHOD
No doubt these heaters are brilliant but in the UK they cost between 450 and 850 quid..😫
A lot of money if like me you are a diy and hobby mechanic.
I will buy one when I retire and do some serious car restoration though. Thanks for the vid.
Been a machinist since
1975. Your heading of the bolt was as good as could be done. Not sure what type of oil/lube you used (and a proper cutting oil is best)but I see many mechanics do it dry. That DOES make me cringe. Keep up the good work Eric.
If you don't have a heater or a torch just use a magnifying glass and bright sunshine 😂
Thanks for thinking about us little guys Eric! Familiar with inductive but never seen it used on a car for that purpose. Thanks!
very impressive, thanks!
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