Cast Iron Crack repair

Repairing crack in casting using LOCK-N-STITCH Inc. C2F stitching pins. For pricing on any crack repair supplies please contact us directly at [e-mail] or 800/736-8261 or 209/632-2345 We ship worldwide!
www.locknstitch.com
www.fulltorque.com

[@icemelttowater]

Not only is this an extremely well done video, but your media relations is amazing. I have never seen a company that replies 12 years after they post something!

[@LOCKNSTITCH]

Casting repair is our passion! Standby for new content - showcasing our incredible products and services! Thanks for watching and commenting.

[@jackmehoff2363]

@@LOCKNSTITCH you better come up with some good stuff. Ive been listening to this accidental asmr for a long time and i need new stuff

[@jimmyhawkins5357]

Pppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppp]ppp]pppppppp]pppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppp]ppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppp]pppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppp]pppppppppppppppppppppppppppppppppppppppppppppppppppppppp]pppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppp

[@tjtrent2351]

@@jackmehoff2363Your comment deserves way more recognition and like a free oversized T-shirt from lock stitch to sleep in while listening to this. 😂😂 “accidental asmr”😂🎉

[@MrCbell57]

@@LOCKNSTITCHhey question if you are still here. I have a 1/2 “ crack in a Cleveland block, In upper galley. Where can I get the stuff to do this??? Any advice or help would be appreciated .

[@RaymondRChammas]

I have never seen a cast iron crack repaired like this. Also, whoever made this video was ahead of their time.

[@LOCKNSTITCH]

Glad you found us Raymond! Appreciate you watching and sharing your enthusiasm for our process. If you would like to learn more about our products or services do not hesitate to reach out to us at [e-mail]

[@zaxmaxlax]

Its 2 in the morning and I'm here watching a tutorial I wont ever need or come across in my entire life.

[@OsRsSavant]

Ya never know

[@lianneashby6097]

In the 80's I worked in the office of partners in a welding company that were working on getting the patent on this system. I typed up the description for the process. The boss would tell people that I could probably do the process as well as the guys in the shop because I knew and understood the system as well as any of them. The idea behind this goes back to the 1700's. But had many flaws that caused failure.The designer went through and solved each one. I saw this used on boat motors that cracked when they weren't properly winterized. They ran as good as new. The locks that run across the stitching pull the crack together in such a way to keep the crack from opening up while the pins replace the cracked material. The locks used in the past would often push the crack open wider and not pull it closed. That really helps to make this system work. The repairs last, they repaired engine blocks and heads to the huge military trucks then would run them for 100s of hours or more without a failure. The man who created and taught me how and why it worked and had me type up descriptions on the process was creative and knew and understood metals. Unfortunately he lacked the vision to understand how to profit from his creation and not lose what he had. Creativity may not walk with wisdom.

[@Saxandviolins]

you guys really hit the lottery with this video

[@f_youtubecensorshipf_nazis]

it's like 2 grand

[@drahunter213]

It’s a training video so it’s valuable skills :P usually you have to pay to see these kinds of things...would be awesome if the entire training course was on KZbin lol of course you’ll get the skills and know how but it won’t give you the paper work and certificate lol

[@LOCKNSTITCH]

@@drahunter213 Yes of course we can't put the entire training course online, but we do have more info we can share with you if you send in a request to customer service for an Info Pack - we really appreciate you watching and if you have any questions in the future our team is always happy to talk to you [e-mail] or 209/632-2345

[@murderdoggg]

@@LOCKNSTITCH Would this work on engine blocks? Was that an engine block?

[@LOCKNSTITCH]

@@murderdoggg Absolutely it will. This process has been used on countless numbers of engine blocks. If you have a specific repair need or needs in mind that you would like to get product for or a quote for repair please reach out to our customer service team. Pictures always help the technical support team if you have something currently you need to repair. [e-mail] 209/632-2345

[@RafaelHabegger]

This popped up today in my feed. Looks like I've missed this in 2009. Thanks youtube algorithm.

[@LOCKNSTITCH]

Hey better late than never right?! Thanks for watching. If you ever need us we are here to help.

[@nicolasfiore]

same here. The algorithm works in mysterious ways.

[@LOCKNSTITCH]

@@nicolasfiore it sure does! Exciting to see so many new 'faces' stopping by to watch and comment - thanks!

[@curtmcbee2238]

Me too, glad it did though. You gotta watch parts 2 & 3. Brilliant repair technique. Wish I would’ve known about it back in 2012 when I chucked out a bandsaw due to a big crack in the cast iron frame.

[@curtmcbee2238]

Just out of curiosity… has y’all been watching a lot of AvE and abom79 videos lately? Pretty sure that’s how I ended up here..

[@glasslinger]

Note that this procedure only works for compression cracks, where the surrounding metal jams against the stitch bolt. It DOES NOT fix tension cracks! (where the crack is being pulled apart by stress) In that case, stress on the part would pull the crack open more releasing the force on the stitch bolt. Sometimes welding or brazing is the only way. :(

[@paulswartz9104]

I agree!

[@Eduardo_Espinoza]

No way, I'd catch another one of your comments! You're awesome! Great minds think alike!!!! :DDDDDDDDDDD

[@drussell_]

You obviously didn't watch the next video, installing the locks....

[@ericbruck7958]

This type of repair has hooks on threads that draws in the crack in the casting that is being repaired. Unlike the method used by irontite product which I've used both methods. Irontite tends to spread apart the repair if you are not aware that this happening. I've had great success in both methods with no failures. Used to charge $100 an inch don't what the price is now

[@LOCKNSTITCH]

@@ericbruck7958 100% correct - unlike tapered plugs, our patented stitching pins and thread repair inserts pull the surrounding material together adding strength and creating a permanent repair!

[@fishinmalarkey9830]

I'm no machinist but this is fascinating

[@LOCKNSTITCH]

Thanks Mike - we love what we do, we are passionate about what we can offer to our customers. Thanks for watching and commenting.

[@Zues532]

Years ago I heard my father refer to this method of fixing cracks in engine blocks while at sea as a merchant marine. Very cool to see it used, what a great video!

[@LOCKNSTITCH]

You are right the method of 'pinning' cracks has been around for a long time. The art of metal stitching has improved on the older techniques and the LOCK-N-STITCH patented thread design has the capability to repair castings like never before! Thank you for watching! www.locknstitch.com

[@mikekirtley4822]

I have seen metal stitching done on detroit diesels engines in motor scrapers. A very successful repair, saving on engine block or head replacements costs .

[@jonathangarzon2798]

​@@LOCKNSTITCH what are the pros and cons of stiching vs welding?

[@LOCKNSTITCH]

@@jonathangarzon2798 here is a white paper written by Gary Reed the inventor of our patented products and services that will go into your question in depth - it is all in how cast iron responds to heat that makes welding so difficult www.locknstitch.com/pdf/gmrc_white_paper.pdf

[@DieCastoms]

My father is a welder/fabricator. He described this process to me but I had never seen it done. I appreciate being able to see it in a nicely described and well lit video! Thank you for sharing this!

[@chrisatherton9641]

This is great to watch. Oddly satisfying. When I struggle to get my crap drill to go through a bit of aluminium seeing your kit just eat away at the metal like a knife through butter was so good to see. Great work. Thanks guys.

[@LOCKNSTITCH]

Thanks Chris! We are passionate about what we do and love repairing what most say is unrepairable! If you ever want to learn more about our products or services feel free to reach out to us. [e-mail]

[@waltmagic]

When I worked as a mechanic when I was younger my boss did this on an old diesel truck where parts were not common. What an awesome video!

[@gsxrsquid]

we always drilled a hole on each end of the crack to relieve stress and then welded it. But that was 50 year ago :D

[@bitterbaldguy]

I'm watching this in 2021 and wondering why they didn't weld the damn thing :-D

[@xenaguy01]

@@bitterbaldguy As I understand it, welding cast iron can induce stresses that can cause the casting to fail at a later time. This process relieves stresses.

[@rustyshacklefordspocketsqu8162]

@@xenaguy01 just sharing some info here: theyve come out with a product called muggy weld just for welding cast. it stays somewhat flexible. if its not available then nickel alloy works well too. you can avoid pre heating cast but still do short sections(3/4") at a time and pein the heck out of it.

[@cuzz63]

@@bitterbaldguy you ever tried to weld cast and get it to take?

[@randymagnum143]

@@cuzz63 ummm....yea?

[@pheenix42]

What a great idea! You've relieved the stresses in the metal that caused the crack in the first place, then put metal back in to keep it from flexing any more. Well done!

[@WillFisch]

After 11 years he’s still replying to comments, amazing!

[@LOCKNSTITCH]

Over 30 years in the business and we are passionate about the products and services we offer! Thanks for watching!

[@cameronbenton1045]

The guy hand drilling those holes makes it look easy. It’s so easy to get off and drill crooked when your having to apply force when drilling into hard material

[@ksommer8438]

Absolutely love this company!! A mechanic (friend of mine) accidentally drilled through the water jacket , while attempting to remove a broken bolt in my engine block on my Camaro. (A power steering pump mounting bolt had come loose, snapping the other bolt clean off below the mounting surface) The great idea to drill it out turned sour the minute I saw coolant coming out of the hole. He apologized and took off. After several calls it seemed hopeless. Nobody knew how to fix the hole in my engine. I worked all night on a custom plug to fit tightly in the hole, with the proper size bolt on the other end. I planned to spot weld it in until I was told it wouldn't work.... So I typed "weld on engine block" into the google search bar and found Mike. He told me about Full Torque and I purchased a kit with drill bit, a tap with special threads and matching insert with a locking pin and glue. It was so simple, I did it myself. I cannot say enough about this ingenious product that came to my rescue. PS This happened over 10 yrs ago and my 2000 Camaro hasn't leaked a drop of coolant and runs like a champ. In short: LOCK-N-STITCH is BOSS!

[@LOCKNSTITCH]

This is GREAT! We are thrilled to read your testimonial about LNS (sorry for the delayed response, KZbin filtered your comment out for approval in error) We would certainly approve a comment with such high praise, The more people know the more they are amazed at what can be done in the world of casting repair with the LNS products. We appreciate your support and again for the wonderful comment. Would love to see any pictures you might have so that we could share this story on FB - testimonials are the best! Glad to hear the Camaro is still running strong!!

[@gary4447]

I first saw this done in the early 1960's on an old flat head Ford V8 engine. The very experienced mechanic used 6013 welding rod with flux removed. Simply drilled a hole, tapped the hole for 1/8 inch rod. Threaded the rod then twisted the rod into the threaded hole. Then cut the rod off flush filed smooth. repeated the process overlapping the threaded welding rod by half until the entire crack had been laced closed. The engine was still in service many years later.

[@JosephBall]

I have no idea what brought me here, but fantastic video.

[@LOCKNSTITCH]

Joseph we are glad you stopped by! If you ever need our products or services be sure to let us know [e-mail] or 209/632-2345

[@rickybailey7123]

This is the best way I've ever seen to fix a cracked block!!! Great video as well 👍 thank you for posting it helped me alot !!

[@LOCKNSTITCH]

So glad you found us Ricky! If you have any additional questions or have a specific repair you are working on our team would be happy to help you. Feel free to reach out to [e-mail] or by phone at 800/736-8261 or 209/632-2345

[@captainalant]

We used this at the machine shop I worked at for more then 20 years. This crack repair system works great.

[@SeptemberTwentyThird]

dose it make it water tight?

[@thebonermaker]

I have an old 60s era leblonde lathe that the 4 jaw chuck was repaired in this same fashion. however not quite as well as this system does. when I first saw the repair I was blown away by how brilliant the idea was.

[@LOCKNSTITCH]

Jon I hope you still have the lathe! Appreciate you watching and commenting. If you are ever in need of our products or services do not hesitate to reach out to us. [e-mail] 209/632-2345

[@robertwest3093]

This is a brilliant method of repairing cracks in cast iron. I've seen it used 4 times and it has been permanent in each case.

[@LOCKNSTITCH]

Thank you Robert for watching and commenting! We love when customers share their success stories!

[@CrunchyMcDugals]

I don't think I'll ever repair a crack in a cast iron casting but I feel compelled to watch these videos anyway.

[@hernanpinto7199]

This is awsome. Never even new this existed. 2 thumbs up!!!!

[@LOCKNSTITCH]

Glad you found us! Feel free to call or email if you are in need of products or our repair services. www.locknstitch.com [e-mail] 800/736-8261 209/632-2345 We are happy to give you technical support, answer any questions you may have, we ship products and perform repairs worldwide.

[@friedchicken1]

you may have liked and unliked

[@oBseSsIoNPC]

I am impressed by this technique. It makes a lot of sense, since welding can and most likely WILL introduce internal stress to the casting. However this technique alleviates those stresses and completely repairs the crack all the way through.

[@LOCKNSTITCH]

You get it completely! This process pulls the metal together, adds strength. No heat involved, no additional cracking or stress! Thanks for watching and for commenting!

[@RHF52]

I learned about Stiching back in the 80s in Italy, to save no longer available parts. At the UIM Key West Offshore Race, we Stiched an External Aluminum gas tank, between the sponsons.

[@battlejack1863]

Not too many people do block stitching anymore its kind of a lost art it’s good to see you doing it

[@LOCKNSTITCH]

Hi Wally - thanks for watching and commenting. At LNS we have been in the casting repair, metal stitching business for over 30 years - manufacturing our patented stitching pins and using our technology all over the world saving irreplaceable castings! If you would like to learn more, or purchase the products please reach out to our customer service team. They would be happy to help you [e-mail]

[@mr.m52]

I've use this to fix blocks and heads. EVERY time that bolt breaks like its designed to, my heart skips a beat lol.

[@toast1012]

lol

[@jasonstalder5208]

my father told me how this was done, have never seen it before. pretty amazing stuff

[@jimmeisch6654]

Im a machist.30 yrs.this is why im a machist.you never stop learning.cool job man

[@LOCKNSTITCH]

Thanks Jim! We are passionate about casting repair!!

[@Bjones5722]

There are not a lot of this cast iron cylinder heads still produced but we still do this repair on quite a few vortec 350/4.3, Dodge 318/360 Magnum and Ford 3.0 heads. I repaired about a half dozen 350 heads last week just like this.

[@LOCKNSTITCH]

Brian I am so glad to hear you are having such success with the products! We are always here for your casting repair needs. Let us know if you need us for help with any projects, big or small are team is here for you.

[@jackt6112]

Metal stitching has been around for a long time, and I've seen it on machinery and people talked to me about it. This video is the first I've ever seen it done. It fills and stabilizes the crack, but adds no strength. Threads are an inclined plane which generates forces both vertically and horizontally, which tends to widen the crack slightly, which would also preload the threads thereby keeping the joint tight over time. The way the pin is made would stabilize the crack vertically as well. A lot of castings are not that thick, but some machinery castings are. It could be machined flat with the surrounding metal and present a sealing surface with no perceptible imperfections and involve no heat. The only thing I would say is when you see him free-handing the first hole between the holes at 6:50 is, "don't try this at home" without some sort of jig. Also, the metal sure seems to drill nice in the advertisement. I never thought to repair a crack on a sealing surface, so I'll remember stitching as an option. It is also low risk. However, stitching cannot fix something that is broken and adds no strength. If anyone wants to argue that stitching does, they shouldn't mind if we saw around the crack. The pieces will fall apart in your hands, and you will never get it back together like it was without the compressive force of the surrounding casting. For more than filling a crack, IME the cast iron rod was hard to work with and simply produced a weak zone of embrittlement. Brazing adds a lot of heat which causes warping stresses of its own and not a particularly strong bond. You can end up chasing cracks and preheat can warp things. For most things I"ll continue with cleaner and dye penetrant to find the ends of all of the cracks, stop-drill, a little v-grind, weld with nickel rod, and check again for cracks. This method has been the easiest, fastest, by far the strongest, and seems to mitigate the embrittlement at the joint. I have never had any kind of issue with this method, structurally, warpage, or leaks. Nickle is also not that hard, so it's easy to work if you need to. Thanks for the video!

[@PercyJackson93]

Is that with a good pre and post heat using the nickel electrodes? I've been chasing cracks in a piece now. I've tried 7018, albronze stick electrodes and I tried some stainless steel rods that would just blow holes. I'll probably end up cutting a section out for some mild steel at this rate. Good practice though. I think my problem is the pre and post heating but I don't have an oxy acetylene set unfortunately

[@jackt6112]

@@PercyJackson93 I've never preheated with the nickle rod and I never had cracks run on me but I did drill just past the end of the crack. I V grind a little. I've had lousy luck with anything but nickle.

[@TrojanHorse1959]

Great video! I learned of this process years ago working in a diesel engine fired power generating plant. I have tried to describe the process several times over the years and now having this video to refer to, will make it much easier. Thank you!

[@LOCKNSTITCH]

Thanks Robert and you can also refer people to the website www.locknstitch.com there are some great examples of repairs there as well! Appreciate you watching and commenting.

[@TrojanHorse1959]

Will do, thanks!

[@LOCKNSTITCH]

@@TrojanHorse1959 Feel free to reach out to us if you have any questions or need help! [e-mail] or 800/736-8261

[@umarshafi6887]

From where I can get job of this field.. I have more than 8 years experience of metal locking

[@rm42749]

I did repairs like this working for a company named Metal Lock in Michigan 50 years ago. The repairs worked and saved lots of money and time.

[@gaildimick1831]

It’s nice looking, and I hope works. I had an engine over 100 years old that had this done but still seeping. Had it cast iron welded, looking great and no leaks. Took 6 hrs to heat the 11” bore by 36” cyl. And then about 8 hrs of welding time.

[@LOCKNSTITCH]

Hi Gail - if you still have 'seeping' we can help. Please reach out to our customer service team, if you send pictures of the leak that still remains we could provide a solution for you. Thank you for watching and commenting - we are here to help you at any time! [e-mail]

[@safn1949]

We used to repair flat head jeep engines that would crack, basically the same thing drilling and threading with bolts. This is a nice setup.

[@LOCKNSTITCH]

Thanks for watching and your comments. If you ever run across a need to repair any casting again, give us a call! We are always here to help. 800/736-8261 or 209/632-2345 [e-mail] Happy New Year!

[@paulnicholls8683]

I've worked in the metal trades all my life. Never seen this before. Very good.

[@LOCKNSTITCH]

Paul that is wonderful that you have such skill and knowledge in metal working! Now you even know about us too! If you ever would like to learn more feel free to contact us directly. Our technicians would be happy to talk to you on the phone or send you more information. 800/736-8261 or 206/632-2345 or [e-mail]

[@mythics791]

Actually thought people had forgot these skills. Great video

[@jaykace5160]

This right here is a gem, my God the things I've missed! Subbed

[@ozcabal]

I know nothing about this kind of stuff. But, I can see a skilled professional at work and you sir, are a skilled professional. Was beautiful to watch this work.

[@LOCKNSTITCH]

Thank you for the kind comment! We like to think of it as the Art of Metal Stitching! Appreciate the feedback, we are passionate about casting repair.

[@cafenightster4548]

Lol, at 6:59 I almost blew at my phone screen. When you don't have access to a air compressor you tend to have that certain habit.

[@RANSFLYER-tl5ss]

CafeNightster I tried to pinch at a paper map the other day to zoom out 😳

[@LOCKNSTITCH]

Haha! Thanks for watching

[@deemarty6618]

Back in 2016 I was looking for this vid I typed engine crack fix Never saw your vid Lo n behold 6 years later... I subbed and liked the video Thank you kind , Sir.

[@LOCKNSTITCH]

So glad you found us! Please reach out if we can ever be of assistance with products or services. [e-mail] or [phone]

[@tjtrent2351]

What an amazing product. Used it several times with zero comebacks. I now am a Professor at my local university teaching Diesel Mechanics Technology. We have a two year program that graduates our students with an A.A.S in DMT. We have a dedicated pre-req class for all incoming students called Basic Shop skills. We teach things such as: drilling/tapping, metal work/fab layout, sharpening drill bits, basic and then precision measurement with calipers dial bore gauges, micrometers, and the list goes on. I would LOVE to add a section on using your system to demonstrate its abilities and how to properly use it. The trick is getting the department chairs to agree to the cost so we usually have to demo things and then create a write up/pitch. If you’d ever be willing to work with me, maybe donate a demo kit I can use to show why we should routinely purchase more for incoming students to use LET ME KNOW. I think this would be a great section to add to my basic shop skills class. Just a thought…..either way, great product and God bless!

[@tjtrent2351]

P.S. I stumbled on this video and it reminded me of your product and how it would be good to teach. Normally, I’d reach out in person, by phone, or email but this was unique. I don’t normally leave too many serious comments but I wanted to try while it was front and center. Thanks and take care.

[@LOCKNSTITCH]

Hello TJ - thank you for the incredible feedback. Please reach out to our team at [e-mail] and we will be in touch.

[@codycall6513]

Wow, 11 years ago. Thanks KZbin. This was quite interesting. Never seen it done this way before.

[@ElectricGrunt37]

This is one of the coolest repairs I have ever seen. You just can't get better knowledge about a cracked engine block

[@A14b19]

I did this 30 years ago in a London UK engineering company rebilding engines and machine work. When it closed in 1996 us last five were made redundant. We were the last in London . And I still miss it . Thanks for the memory .....

[@LOCKNSTITCH]

Angleo thanks for watching!

[@MyronWooley]

This company saved my butt and my job way back in 2002. I messed up the layout for 2 knockout holes in the platen of a brand new 1000-ton injection molding machine and bored the holes wrong. These were about 2 1/2" in diameter and were half a hole off. We flew their tech down to Carlsbad, and he stitched in some plugs so that we could re-bore the holes in the right place. Still running ten years later.

[@LOCKNSTITCH]

Myron thanks for commenting and so glad to know that you have not had any issues and everything is still running! If you ever need us again, products or services we are here for you!

[@nickclarke587]

Watching this brings back memories of going to work with my dad in the school holidays. He worked for a company called Metalock, he worked for them for 40 years, from just after WW2 until his retirement in 1987. The range of applications for this process are almost limitless, and cover every industry. I understand it was Metalock who first patented the process in the Texas oilfields in the 1940s....

[@flaplaya]

I like the jig for getting perfect results here.. I always eyeball and I also overlap each pin (meaning on a 1/4 inch pin I would start my next hole 3/16 over.. Stitched up many cast cracks with this method and it worked flawlessly.. No sending heavy flat head blocks off to come back with more cracks. Fix it right the first time is my motto. Great product.

[@LOCKNSTITCH]

Thank you for the positive feedback!

[@flaplaya]

Good products deserve nothing less. Next cracked block, will be getting this kit. Great design.

[@LOCKNSTITCH]

We are here when you need us! 800/736-8261

[@stevencroon]

I used this technique on an old jeep block using cast iron pipe plugs almost 50 years ago and it worked like a charm.

[@johnpena9165]

This method has been used for years and is one of the best ways to repair a crack on a cast iron surface, I've used it many times and never had any problems .

[@LOCKNSTITCH]

John that is great to hear! Thanks for commenting and we wish you continued success with our products! If you need technical support or additional products/services do not hesitate to reach out to us. 800/736-8261 or 209/632-2345 [e-mail]

[@artbyrobot1]

this video BLEW MY MIND! Great work and I feel anybody can do this... also, I watched at 2x speed and found I could learn just as much and save time this way

[@LOCKNSTITCH]

+arbyrobot thank you for the positive feedback! We are always here to help if you should ever have a need for our products or services 800/736-8261 [e-mail]

[@FlatBroke612]

+LOCK-N-STITCH INC. Do you have a dealer/distributor in eastern Canada? If so could you post their name and contact info? Thanks!

[@LOCKNSTITCH]

FlatBroke612 sorry for the delayed reply, you can purchase direct from us 800/736-8261 or you can reach out to Canxus in Hanover ON 519/364-6051 - please do not hesitate to contact us if you have any questions or need any help [e-mail] Thank you for your interest in our products and services.

[@hardboiledfrog]

@@LOCKNSTITCH how about down in chihuahua, mexico?

[@LOCKNSTITCH]

@@hardboiledfrog please contact our customer service team - they would be happy to help you [e-mail]

[@djohnson3678]

very good ! would have been better if the video did not cut out at the last crucial part.

[@LOCKNSTITCH]

This is just a portion of a training series, please feel free to contact our customer sales team if you would like to learn more about our products and services! 800/736-8261 209/632-2345 [e-mail] Thank you for watching and for your interest!

[@MrAssassinash]

So dissapointed

[@calvinthedestroyer]

Are you still trying to sell a 40 year old product?

[@pramodm3540]

Second part kzbin.info/www/bejne/fHquimBjiriebbs

[@echo3325]

@@calvinthedestroyer honestly it probably still works great

[@rm42749]

In 1969 I worked for a Detroit based company that did this type of repair. It called the process metal lock and I never saw a repair fail. This saved companies lots of money compared to buying replacement parts. Dirty work!

[@perryvanvelzen9863]

Thank you, almighty youtube algorithm. This was really informative, even though I don't own any cast iron machine tools, or a tap for that matter

[@LOCKNSTITCH]

Thanks for watching - next time someone says they have a cracked casting you can tell them who to reach out to!

[@Clod15]

You sir are very amazing. I was captured by the way you did and explained everything. It was fascinating to watch it from start to finish!

[@LOCKNSTITCH]

Thank you! Glad you found us, found the process and enjoyed learning more about what we do; the products we manufacture. We are passionate about casting repair and are here to help you if you ever need us.

[@Bodragon]

Do you mean "in rapture"? rather than "captured"? I, perhaps feel that you do...

[@Oldwhiteguy]

I had an inner primary on a shovelhead with a big crack and that’s how it was repaired.

[@LOCKNSTITCH]

How long ago was it repaired?

[@Oldwhiteguy]

@@LOCKNSTITCH about 8 or 9 at least. I still have that bike, and ride it.

[@LOCKNSTITCH]

​@@Oldwhiteguy That is GREAT! If you are ok with us sharing your story could you send any before and after pictures to [e-mail] and with your permission we could put a post together on our FB page (we share it anonymously). It is always wonderful to hear from customers like you ~ thank you so much for sharing! Happy Riding!!

[@Oldwhiteguy]

@@LOCKNSTITCH sorry but I don’t have any photos. It’s the inner primary and you can’t see. You can share the story np, my friend who repaired it( like you) is very skilled at his job.

[@fuelban]

I seen this being done 30+ years ago at sea, it held together fine, and I still think it is very impressive guys.. Thom in Scotland.

[@danhalfhill9169]

Had a pair of rare k-code Ford 289 cylinder heads repaired this way. Worked perfect and kept the engine original. Good ‘ol stuff right here!

[@markdoty3196]

Recently metal stitched a #4 GE combustion turbine crankcase. The job cost the customer $45K. (A new crankcase was $4 million US). The turbine has been back in service for 3 years now. They are very happy.

[@LOCKNSTITCH]

Thank you Mark for sharing! We love hear how the process can get a customer back up and running, in turn saving $ by repairing instead of replacing the damaged casting!

[@TanTan-ni4mg]

Mark Doty recently made a repair, 3 years ago....... Math?

[@kencohagen4967]

Mark Doty $45k? Must have been hard to get to to demand that kind of labor pricing!

[@S.PaulMentzer]

ken cohagen He could have charged more. It's not about labor or materials cost, it's about the value. In many industries you can charge up to half the replacement cost to perform the repair. Think of it, if he had charged them $100k, it still would have saved them $3.9 million dollars for a replacement part. The value is therefore HUGE!

[@janhendrikfranke]

Steve Mentzer That is why even small company's have their own mechanics and metal workers n stuff!

[@painmagnet1]

I followed upon this after Jay Leno mentioned it in order to understand the process. It's ingenious!

[@LOCKNSTITCH]

Wonderful to hear! It has been great to work with Jay on the show and with his crew on a few other projects. Always wonderful to restore such fabulous pieces of history, have fun in the process, and teach others about the products and services as well. Thanks for watching and following up with us!

[@brianm7879]

As did I.

[@BlackEpyon]

I've got a 6.5 Detroit diesel from a '98 Chevy I've been thinking of doing this on. As everyone knows, those six-fives are known for cracking. There's at least one company in the US that makes aftermarket blocks, but they're easily upwards of $3 grand each, excluding taxes and shipping. This would be much cheaper, and when you're talking about a cracked block, you've got nothing to loose anyways, so it's worth a try.

[@LOCKNSTITCH]

Thanks for watching and commenting. We are here for all the technical support you need to purchase products and do the repair (or find a local shop to do the repair) [e-mail] or 800/736-8261 or 209/632-2345

[@junior1138]

I’ve seen stitching a few times and I’ve seen your particular process a few times too. Excellent work.

[@LOCKNSTITCH]

Thanks! We appreciate your positive feedback!

[@junior1138]

I’m a member of various old car groups on Facebook. I assume you are happy for me to share your products on them?

[@LOCKNSTITCH]

@@junior1138 Yes please share away - we appreciate your support! You can share the youtube, facebook or website www.locknstitch.com

[@TyphoonVstrom]

This is a variation on a tried and true repair method that has been around since the dawn of the industrial revolution.Some if the ignorant commenters here need some actual experience, not internet folklore knowledge.Firstly, cast iron has very, very poor tensile strength, so welding will not be any stronger than this repair, and this repair is stronger in compression.Secondly, large cast iron parts like this are designed to carry very little load in tension, due to the nature of the material, there is no advantage in welding.Thirdly, welding a cast iron piece this large will cause crystallisation around the repaired area and will require a lot of prep time grinding the material to full depth to assure proper penetration, not to mention correct preheat and post cool down of the part, and warpage control whilst heating. There is absolutely zero advantage to TIG welding or any other method on cast iron, it's still going to crystallise around the weld and be weak.Fourthly, brazing would work well, but this is a very large part to preheat and takes the same amount of work to achieve the same result as welding, except it will work much better.This repair is just fine to permanently repair this part. Look up stitch repairing cast iron to see how it was done the old fashioned way- driving iron wedges into a part.

[@foggymind2644]

Tig brazing does not require pre heat

[@TyphoonVstrom]

Cast iron does. Clearly you don't know your materials.

[@foggymind2644]

not always is possible to know which material you got in your hands, tig brazing does not require pre heat , I tig weld but I m 20 years in machining and repairs, already did all the shit possible.

[@24681359David]

Torch welding this would be a much better aproach. You can easily pre-heat the area before you do your welding, and you can sort-of anneal the area after words to prevent warping and hairline-spider cracks. I work for a guy up in Washington State and he does this almost on a daily basis.

[@leegenix]

I believe Keith Fenner does this on his KZbin channel.

[@notsure7060]

Don`t care if its old, its gold =)

[@rahulbindhu]

That drill goes through like its butter, very good information

[@Shawdow194]

The last two minutes are godly

[@c2ashman]

I don't understand...how are these bolts/screws pulling the material 'together' to build up strength between both sides of crack?

[@TheOnlyTominator]

I would like to learn that also. I can see how a tougher metal would stiffen the surface and keep the two sides of the crack from racking past each other, which would keep the crack from spreading due to torqueing loads on the part. But do they withstand tensile loads?

[@Eric-lf6yx]

From my understanding, the crack was drilled from end to end. Therefore, the crack no longer exists. All the material involved with the crack was drilled out and then replaced with pins threaded in with red loctite. The pins aren't fastening like a traditional bolt where 2 surfaces are sandwiched together but instead it's just used to fill the drilled hole. The long threads and thread sealant will seal and prevent any fluids leaking through. He's not actually "bolting" the 2 sides of the crack together.

[@BartJBols]

I dont even know how to put up a picture on the wall but this was a delight.

[@LOCKNSTITCH]

Glad you enjoyed our video!! Thanks for the comment to make us smile :)

[@expatinbrazil]

Very good job guys! Thanks for sharing with us!

[@LOCKNSTITCH]

You are most welcome! Thank you for watching and if you wish to learn more or have any questions please let us know! 800/736-8261 or 209/632-2345 or [e-mail]

[@junior1138]

I’ve seen this technique a few times. It’s great for saving old components that are not readily available today. It’s sad that it’s so rare now, but it indicates how disposable things are today.

[@LOCKNSTITCH]

Thanks for watching! We love the fact that our process saves and it's green too ~ why scrap when you can fix!

[@ralphvalkenhoff2887]

Got to admit, when I first saw the jig used, thought "give me a break" as I continued watching, I realized how it worked. Don't be too quick to judge, is my motto.

[@becomematrix]

Ralph Valkenhoff agree. The repair looks good.

[@BigJfan]

I put over 100,000 mi. on an engine that had this type of repair done to the cylinder heads. It showed up under magnaflux at the machine shop,otherwise you couldn't tell.

[@justinminer1354]

Fascinating repair method, I didn't know this was done. Thanks!

[@johnnyk617]

I've heard of this but never saw this process in action absolutely fascinating

[@LOCKNSTITCH]

Glad you found us Jay - if you want to learn more feel free to reach out to our customer service team. They would be happy to talk to you, answer any questions you have and send you more information. [e-mail]

[@andreiprimu]

The only one whos watching before going to bed?

[@kingarthurthe5th]

Same here bro

[@dl87z28]

If you understand this process and how it works from an engineering standpoint, and, you understand the physical properties of cast iron, then you understand that this IS the BEST option for casting crack repair. This will LONG outlast your nickel weld technique every time. I have been using this for years. Go ahead and try welding on a un-replaceable antique one of a kind engine casting that there is only one of in the world and get back to me.

[@dougankrum3328]

+dl87z28 ..I'll have to try this on my old 1946 Harley Knucklehead....

[@dl87z28]

+Doug Ankrum your best option. I repaired a crack in between the valves on a 1959 KR cylinder years ago and it still holds today. 2 pins right through the seat area then machined right into the pins and installed hardened seats. There are only a coupke old timers I know who still do this. The company who makes lock and stitch used it to repair 20000 inches of cracks in the thick copper roof of our nations capitol building. Good stuff.

[@dougankrum3328]

dl87z28..I should have mentioned the Harley head is cast iron...cracked at the gasket area...through the Ex valve seat.

[@dl87z28]

not a problem

[@stephenanderson439]

dl87z28 I

[@AhitagniDasgupta]

I have never seen anything so brilliant in my life before!!! Great work :)

[@LOCKNSTITCH]

So happy you found us! We invite you to visit our website and facebook page as well and contact us if you would like more information about our products as services! Thank you for watching. www.locknstitch.com facebook.com/LOCKNSTITCH/ [e-mail]

[@AhitagniDasgupta]

Will do, right away :)

[@LOCKNSTITCH]

Excellent. We are always here to help!

[@stevemason5348]

Back in 1968 I worked for an engine reconditioners, we used drill the holes and stitch with brass rod

[@r6f09]

I’m really curious of how well that repair held up all these years? The repair looked simple but excellent to me (retired mechanical engineer).

[@LOCKNSTITCH]

Hello! Thanks for watching and commenting - the repair is a permanent repair! Please reach out to the team if you would like to get more information about our products and/or services. Happy New Year! [e-mail] or 800/736-8261 or 209/632-2345

[@zosxavius]

It's actually stronger than the cast metal so it should be rather permanent if done correctly. Much in the same way a time sert can be stronger than the original threads. This has been a proven repair method for a very long time for iron blocks. I suspect it works well with aluminum too. This kit looks very nice and definitely simplifies things.

[@tjtrent2351]

I read your comment as, “I’m a retarded mechanical engineer,” and thought, me too!

[@georgeloyie7456]

I like this, even though I grew up welding and welding is what we did to repair broken/cracked cast iron. Didn't matter if it was a cylinder head mating surface or an exhaust manifold flange.

[@LOCKNSTITCH]

Hi George, thanks for watching and commenting! If you would ever like us to provide more information to you about our products or services do not hesitate to contact us. Our customer service team is also always available by phone if you have questions. [e-mail] 80/736-8261 209/632-21345

[@RafaelHabegger]

@@LOCKNSTITCH How does this stabilize the casting/crack? It looks counter-intuitive to me.

[@Bialy_1]

@@RafaelHabegger Maybe explain why it looks counter-intuitive to you as it is clear that your intuition misleading you... crack can expand via sharp eadge that is cuting more and more of the material with that sharpe edge where forces are concentrated.

[@wrenching5483]

Never seen that before. I really like the process. To me it seems better than all the process to try and weld it

[@silverwiskers7371]

I've been called out often to weld cast iorn in the oilfields and never liked doing it, used nickel rods and sometimes LH 7018, i always tell them "I can't guarantee it'll hold but they had me do it anyway, I probably had around 45% success rate, doing what your doing is pure genius and I'll research this topic more, thanx for one hell of a video

[@LOCKNSTITCH]

Happy to excite you with our process Gene! We would love to talk to you more about our products if you wish to contact us directly. [e-mail] or 800/736-8261 The customer service team is always here to help. Appreciate your comments and feedback!

[@handlebullshit]

V out the crack, braze, grind smooth. Done.

[@justonemori]

Sure that sounds good, until the sidewall of your crankcase blows out again. Stitching is incredibly strong.

[@handlebullshit]

@@justonemori So is brazing. It holds.

[@dougqdelane4359]

@@handlebullshit I like brazing, but not everyone has access to a torch/tig. This is a pretty slick repair

[@epoxeclipse]

@@dougqdelane4359 make good friends with one of the top performance automotive shop welders in your area

[@randalljames1587]

this is quite ingenious

[@LOCKNSTITCH]

Thank you Randall! We take pride in producing quality products and providing quality service. We are here if you ever need us. [e-mail] 209/632-2345 Appreciate you taking the time to watch and comment

[@dtiydr]

@@LOCKNSTITCH 12 years since upload but still give an answer, impressive, that's a company worth its name.

[@LOCKNSTITCH]

@@dtiydr Thank you! Since 1990 proudly manufacturing our patented products in the USA!

[@ezcondition]

jeezus krist, the time spent doing this!

[@kris-english]

The "old school" way of doing things is by far the most reliable. This could save the customer, potentially *THOUSANDS*

[@devsaajan4731]

Nice video

[@LOCKNSTITCH]

Thank you!

[@davidspin5353]

You just blew my mind. I'm a welder and repaired cracks in cast iron and are very difficult to make not leak.

[@LOCKNSTITCH]

Right on! We love when people get just as excited as we do! We are here if you ever need more information or would like to purchase products to do repairs yourself! Our customer service staff and technicians would love to talk to you and answer any questions you may have. 800/736-8261 or 209/632-2345 or [e-mail] Glad you found us

[@DeliciousDeBlair]

I have never seen iron repaired like this. Very intriguing!

[@LOCKNSTITCH]

thank you so much for watching and glad you found us! If you ever want to learn more feel free to email or call and speak to our technicians. They would be happy to talk to you and answer any questions you may have 800/736-8261 or 209/632-2345 or [e-mail]

[@DeliciousDeBlair]

So far, we have never run into such a situation, the only cracked cast iron I ever encountered was in such things as exhaust manifolds and water cooling systems and they were clean break-offs where we welded them with nickel rods. Typically, in the case of a diesel engine, it is [or has been] the practice of most companies to discard cracked blocks, especially if the crack is in the cylinder walls or if it is in a stress point, so no such opportunity has yet arisen. None of our machine tools have cracked, and here out of our own machinery, no engine blocks have ever cracked, the engine heads I cracked long ago were to badly damaged that you could put the edge of a credit card into the cracks and they went all the way into the water jackets on both sides so that water went through the gaps in the valve ports directly into the cylinders. Should such a repair be needed though, I will hopefully b able to locate your company again and request information.

[@LOCKNSTITCH]

Yes please keep our information on hand - we are just a phone call or email away. We can sell you the products to have your technicians do the repairs in house - for more complex repairs we can have our technicians travel to you to preform repairs; we have crews that travel all over the world. www.locknstitch.com 800/736-8261 [e-mail]

[@Imnotyourdoormat]

Pure Unadulterated Genius.....

[@derrickdesrochers5424]

The Hammerer did all the work. This is when it gets serious

[@Mr.WellingtonVonDukeIII]

KZbin recommendations brought me here and I bet it brought you here too.

[@ericjensen9375]

Indeed.

[@LOCKNSTITCH]

@@ericjensen9375 Thanks for watching!

[@LOCKNSTITCH]

Thanks for watching!

[@greasemonkey1275]

Yip... Mysterious how most of my views are pole dancing videos then this shows up...

[@ianhames2465]

I used to do this at my workplace of an engine re-manufacturers workshop. We didn't have the spacing jig but still managed the process. We had aluminium also.

[@VolNation-iq4wo]

Awesome job man.. never seen this done so easy before. Actually never seen at all,, amazing how you guys invent things that save money

[@LOCKNSTITCH]

Thanks for the great comment! We are very excited about what we do and how it can save the end user - our customer downtime and money! This process can save one of kind items! If you ever need us please feel free to reach out to us 800/736-8261 or 209/632-2345 [e-mail]

[@Freddiestillalive]

VERY VERY GOOD WORK, CONGRATULATIONS FROM FRANCE

[@LOCKNSTITCH]

Thank you!

[@CyberMacGyver]

I never wish cracked cast iron upon anyone... but this makes it somewhat fun 👍

[@jerrodjohn2274]

Wow! Great video!. I heard about this technique 42yrs ago but never did one so detailed in the machine shops

[@TanTan-ni4mg]

I like when you finish a repair with a hammer blow. Really makes me feel like the job is top quality.

[@LOCKNSTITCH]

If you want to check out strength you should watch this video we posted testing the strength of the C3 pin! Appreciate you wantching and commenting. If you ever have any questions please feel free to email or call us [e-mail] 800/736-8261 209/632-2345 www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&uact=8&ved=0ahUKEwjxyO-K283XAhWrs1QKHfBvAyIQtwIIKzAA&url=https%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3DtkCv8WpnqUo&usg=AOvVaw2V5ElVIS9yXsif74ipwTND