Great work lads. That's real engineering. Not only are you salvaging a historic engine which would otherwise be scrap but you are also keeping a skill alive.
Very few left with the knowledge, skill and patience to do cold stitching to repair an engine block. Nice to see someone who knows what the other end of a hammer head is for too. Well done the crew for nearly holding it together after the A-hole moment.
Great video gentlemen.....however, referencing my comment in the Episode 3 video, I almost fell off of my chair when you started hammering on the crack/pins. All I ever did was grind the plugs flush and use a needle gun to knock down any sharp edges and give the cast iron repair a "dimpled" surface as on the original block. The sealant and the interlocking threads on the plugs are what seals the leak. Your repair was quite different than what I did 50 years ago for several years in the plant, but it might work. I would consider pressure testing the block before complete assembly, install your cylinder sleeves and plug or cap off all the water openings, use a flat 3/8-inch plate as a cylinder head but skip half of the bolt holes. Stand the block on end use an air fitting with a low-pressure gauge to add 10-15 lbs of pressure or whatever your radiator cap will be. I would hate to see you guys completely assemble the engine and get it running only to see water dripping out of the cracks. I wish you all luck and hope for success !
Love the channel. I worked in and around manufacturing all my working life. I had heard about cold stitching but had never seen any. Watching you stitch the block is my kind of entertainment. Wonderful! Thank you. ❤
rather than retype what others have already said, I've just liked their comments. posting this comment to help with the youtube algorythm, lol :) Well done though!
Thats got to be a Class-A repair job if ever I've seen it! Not just knocking in rods but tapping and screwing em in for extra strength, this is going the extra mile. Nice to see!
Fascinating. When I saw you hammering the studs to peen them over I was worried you would make a new crack in the block! Very impressed with the repair.
Well done guys! I’ve heard of cold stitching many years ago, also as an apprentice, but I’ve never seen it done before. As everyone else says here, a fantastic bit of work! Now to wait and hear her running again!
I learnt about cold welding cast iron when I went to night school city & guilds welding 101 fifty years ago, but that is the 1sr practical application I have seen, great work
I never knew about this technique. Fantastic. Love this video series. Edit: just visited Kew gardens. The cast iron grids over the greenhouse heating pipes underground have been repaired like this.
What a great video, since leaving school and being an apprentice in BMC garage, i've been around vehicles all my life, but I've never seen this cold block repair being.carried out. Well done guys keep up the good work 👍
Epic job. I've seen the finished repair in the past, but never how it was done. Can really appreciate all the time and effort that went into it.Brilliant!
Fascinating, I'd only heard about cold stitching, always wanted to see it done, now I have. Very interesting, not quite what I thought. You say your machinist made the jigs. Any chance of seeing the drawings, as I'd like to save for further use if needed. Apart from the usual questions, Drill,tap sizes etc, Very interesting half hour. That is what engineering is all about. Being able to make a tool, to repair some sort of machine, that otherwise would have been dumped. Now hopefully the rebuild goes as planned. Thanks for filling in a serious gap in my engineering knowledge. You've made an old man very happy!
Beautiful work guys. That is the first time I’ve ever heard of this method, and seeing it done was great. Hope now you can get on with the engine rebuild with no problems. 👍👍👍👍👍👍👍
S3xy repair guys.Well done. BSW or UNC in cast iron every time 👌 One thing - as you grind down the threaded bar be careful not to cook off the Locktite. I assume it was split after Mr J Frost got at it? Wet liners and plain water is never a good thing anytime.
Really good demonstration of an almost forgotten repair method. I have searched high and low for the drilling jig. Is there a British supplier for them. I'm now inspired to do it myself.
I really enjoyed doing it! everything these days are built to be thrown away! if you struggle getting the jigs drop me a message on our facebook page and we'll knock you some up for price of a pint! :)
Another great vid fellas. Good to see the proper old skills being used and taught! Really hope I can make down to see you this summer. Keep up the good work.
This is amazing video content. I always wondered what metal stitching meant. Now I know. This video should be part of an apprentice/mechanical engineering course video. 😊
We were always told that the graphite in C. I. made it pretty much self lubricating, if you 're using Loctite, any sort of liquid lube will probably work against you, fair play to you for getting an Antar up and running, when I was a kid I saved up my pennies and tanners until I had the money (17/6) to buy a Dinky tank transporter, I didn't have the patience to save up the 10/6 for a Centurion as well. All The Best from Somerset.
Great job. One of Jay leno's interwar racing cars, built with a massive aeroplane engine has a cracked block repair like yours which has been completely stable and lasted many thousands of racing miles and about a hundred years.
Fantastic repair to the block lads, like many of 5he comments, I'd heard of cold stitching repairs before in the dim and distant past, but I didn't know how it was done. Now I do lol. If you have to do it again in the future, only use the taper ( or first ) tap and don't go right through with it. Then you will have a slightly tighter hole ( not A hole lol ) for the stud to fit into as the threaded rod is usually a loose ( I think it's a class C fit. As Whitworth threads have I think four classes of tolerance sizes if my memory serves me correctly.
Great work guys nice to see some progress on that big Anatar block its a beast. Had to crack stitch a Austin 10 engine myself. Felt like a good achievment doing it the old school way.
Thanks. I thought it may be a jig available on line. If you had a basic drawing of it that would be great. I searched for hours and mainly got American companies who supplied unnecessarily complex kits. I am going to be volunteering for Amberly Museum which will give me access to a machine shop where I can make my own. Thanks for your quality work in preserving military vehicles.
That is some Impressive enginnering mate, keep the old skills going . I hope you have an aprentice to pass these skills onto. Keep on with these videos.
Great content lads. Great to see stitching a crack in cast iron. I’ve only done it the once on a Perkins P3 (no AF) got away with it. The grinding pad disc you used with the three cut outs so it affords you a view is a brilliant idea. Where you get them from? Keep it up the good work.
Forgot to say, while the block is clean and dry paint the inside of the repair with black rubberised sealing paint. This is something i was taught when I learnt stitching.
I remember my granddad telling me how he did the same on the cylinder head of the lifeboat he was the mechanic of back in the 40's . I thought he said they used brass studs ?
I'm afraid I didn't quite understand why You drill out the bolts in the B-holes again? Are the bolts replaced by bigger ones whose threads tooth up with the ones in the A-holes? Being from Germany I don't compete with Norfolk English all too well, sorry. 🙂
One question and I am an engineer and understand cast iron, could you not weld the tops and possibly insides of the inserts together? or would the heat split the block?
I looked into this, heating which makes them contract and expand can distort the threads which is sealing the water jacket and split the block open again slightly.
Isn't it funny when people look like their mic muffs. 😂 Great work, call it arrogance but I also work by the principle that if it can be done I can do it to, with a degree of success.
I'd wack a 3406 in it or big cam 4 I'm surprised the heavy haulage firm didn't not everything has to be all original restoration that's just my opinion
Great work lads. That's real engineering. Not only are you salvaging a historic engine which would otherwise be scrap but you are also keeping a skill alive.
Very few left with the knowledge, skill and patience to do cold stitching to repair an engine block. Nice to see someone who knows what the other end of a hammer head is for too. Well done the crew for nearly holding it together after the A-hole moment.
Amazing work. I remember these vehicles in action when I was a kid. Keep it alive. 👍😎
The first time I have seen cold welding in a very long time. Nice to see BSW taps used on a British engine. Excellent video😊
Great video gentlemen.....however, referencing my comment in the Episode 3 video, I almost fell off of my chair when you started hammering on the crack/pins. All I ever did was grind the plugs flush and use a needle gun to knock down any sharp edges and give the cast iron repair a "dimpled" surface as on the original block. The sealant and the interlocking threads on the plugs are what seals the leak. Your repair was quite different than what I did 50 years ago for several years in the plant, but it might work. I would consider pressure testing the block before complete assembly, install your cylinder sleeves and plug or cap off all the water openings, use a flat 3/8-inch plate as a cylinder head but skip half of the bolt holes. Stand the block on end use an air fitting with a low-pressure gauge to add 10-15 lbs of pressure or whatever your radiator cap will be. I would hate to see you guys completely assemble the engine and get it running only to see water dripping out of the cracks. I wish you all luck and hope for success !
Love the channel. I worked in and around manufacturing all my working life. I had heard about cold stitching but had never seen any. Watching you stitch the block is my kind of entertainment. Wonderful! Thank you. ❤
rather than retype what others have already said, I've just liked their comments. posting this comment to help with the youtube algorythm, lol :) Well done though!
Thank you :)
Thats got to be a Class-A repair job if ever I've seen it! Not just knocking in rods but tapping and screwing em in for extra strength, this is going the extra mile. Nice to see!
What an amazing job. I've never seen that done before. It just goes to show that the old ways are still often the best.
Fascinating. When I saw you hammering the studs to peen them over I was worried you would make a new crack in the block! Very impressed with the repair.
Well done guys! I’ve heard of cold stitching many years ago, also as an apprentice, but I’ve never seen it done before.
As everyone else says here, a fantastic bit of work! Now to wait and hear her running again!
I learnt about cold welding cast iron when I went to night school city & guilds welding 101 fifty years ago, but that is the 1sr practical application I have seen, great work
Imagine the first time someone thought of this repair method. Genius.
It is good to see the old skills being kept alive and documented. 😎
I never knew about this technique. Fantastic. Love this video series. Edit: just visited Kew gardens. The cast iron grids over the greenhouse heating pipes underground have been repaired like this.
What a great video, since leaving school and being an apprentice in BMC garage, i've been around vehicles all my life, but I've never seen this cold block repair being.carried out. Well done guys keep up the good work 👍
Epic job. I've seen the finished repair in the past, but never how it was done. Can really appreciate all the time and effort that went into it.Brilliant!
Fascinating, I'd only heard about cold stitching, always wanted to see it done, now I have. Very interesting, not quite what I thought. You say your machinist made the jigs. Any chance of seeing the drawings, as I'd like to save for further use if needed. Apart from the usual questions, Drill,tap sizes etc, Very interesting half hour. That is what engineering is all about. Being able to make a tool, to repair some sort of machine, that otherwise would have been dumped. Now hopefully the rebuild goes as planned. Thanks for filling in a serious gap in my engineering knowledge. You've made an old man very happy!
I just learnt more in the last thirty minutes, than in the last six months, Cracking vid
Very impressive cold stitching 👍👍👍👍👍 can’t wait for the rebuild
Really enjoyed the video and humour , old school . thanks .
Never seen or heard of that technique before, really interesting vid.
Absolutely awsome! I hope that the museum appreciates you and your team. I can't wait to visit.
Never thought of such a thing , great work guys !!
Beautiful work guys. That is the first time I’ve ever heard of this method, and seeing it done was great. Hope now you can get on with the engine rebuild with no problems. 👍👍👍👍👍👍👍
Great channel. Keep at it blokes. Greetings from Australia
Thanks for the memories, i learnt how to do this as an agricultural engineer apprentice in the 60's.
Well well well. Everyday is a school day. Thanks for the video. I await the rebuild. Well done chaps.
cylinder heads are the next video on the c8 then assembling to a long block :)
S3xy repair guys.Well done.
BSW or UNC in cast iron every time 👌
One thing - as you grind down the threaded bar be careful not to cook off the Locktite.
I assume it was split after Mr J Frost got at it? Wet liners and plain water is never a good thing anytime.
Really good demonstration of an almost forgotten repair method. I have searched high and low for the drilling jig. Is there a British supplier for them. I'm now inspired to do it myself.
I really enjoyed doing it! everything these days are built to be thrown away! if you struggle getting the jigs drop me a message on our facebook page and we'll knock you some up for price of a pint! :)
Wow I never seen that done before that’s great thank for showing me very interesting 👍👍
Looking good how to all works out nice I've never seen anything like it done it's very good
Great work lads, always look forward to your videos, very interesting and always learn something!
sir that was a master class on repair of an engine ,and i so now have to go and fix my tractor block ,
Another great vid fellas. Good to see the proper old skills being used and taught! Really hope I can make down to see you this summer. Keep up the good work.
Outstanding craftsmanship, well done gents!
Fantastic video,cannot wait for the next one.
Well done guys! Looking forward to seeing this and your other great exhibits when you reopen at Easter.
This is amazing video content. I always wondered what metal stitching meant. Now I know. This video should be part of an apprentice/mechanical engineering course video. 😊
Absolutely stunning video, every second was a joy to watch.
Very impressive work
We were always told that the graphite in C. I. made it pretty much self lubricating, if you 're using Loctite, any sort of liquid lube will probably work against you, fair play to you for getting an Antar up and running, when I was a kid I saved up my pennies and tanners until I had the money (17/6) to buy a Dinky tank transporter, I didn't have the patience to save up the 10/6 for a Centurion as well. All The Best from Somerset.
Thanks and very interesting, never seen this done before, but did know of it and have seen the occasional block repaired this way.
Another fantastic video guys. Really interesting and super informative. Thanks so much for sharing
Ive seen cold stitching on TV, very skillful and sadly a dying art. Good luck guys.
Thanks for the info on the stitch welding very interesting
Another awesome overcoming of mechanics difficulties!!!
Well done! :D
Certainly trying us this antar!
Holy Moly _that_ is a BiG engine block! Why did it have to be a Straight Eight for? Could they not have made it a V8?
Great job. One of Jay leno's interwar racing cars, built with a massive aeroplane engine has a cracked block repair like yours which has been completely stable and lasted many thousands of racing miles and about a hundred years.
Impressive work! Fascinating to watch how cold stitching is done. Just wondered - what does it look like inside the block after the repair?
Quality viewing and superb explanation 👌
Brilliant repair, credit to your skills
a good job
Fantastic repair to the block lads, like many of 5he comments, I'd heard of cold stitching repairs before in the dim and distant past, but I didn't know how it was done. Now I do lol. If you have to do it again in the future, only use the taper ( or first ) tap and don't go right through with it. Then you will have a slightly tighter hole ( not A hole lol ) for the stud to fit into as the threaded rod is usually a loose ( I think it's a class C fit. As Whitworth threads have I think four classes of tolerance sizes if my memory serves me correctly.
Very interesting. I know of the process but I’ve never seen it done before.
Thank you.
Very good. I've heard about this method being used to repair damaged cast iron bed ways in machine tools, but never seen it done. Excellent.
Great work guys nice to see some progress on that big Anatar block its a beast. Had to crack stitch a Austin 10 engine myself. Felt like a good achievment doing it the old school way.
Another great video, very informative and well described. Keep it going lads.
Thanks. I thought it may be a jig available on line. If you had a basic drawing of it that would be great. I searched for hours and mainly got American companies who supplied unnecessarily complex kits. I am going to be volunteering for Amberly Museum which will give me access to a machine shop where I can make my own. Thanks for your quality work in preserving military vehicles.
That is some Impressive enginnering mate, keep the old skills going . I hope you have an aprentice to pass these skills onto. Keep on with these videos.
Great skill and work very impressive 😊
Really enjoyed this series, newish subscriber to your channel via Mr Hewes? Who I found via the Tank museum.
Excellent job !
Glad you like it!
Well done. What does the underside look like ?
Excellent content!
Much appreciated!
I think I would have used dye penetrant to inspect those cracks. They are sometimes longer than visible to the naked eye.
Great content lads. Great to see stitching a crack in cast iron. I’ve only done it the once on a Perkins P3 (no AF) got away with it. The grinding pad disc you used with the three cut outs so it affords you a view is a brilliant idea. Where you get them from? Keep it up the good work.
Forgot to say, while the block is clean and dry paint the inside of the repair with black rubberised sealing paint. This is something i was taught when I learnt stitching.
I remember my granddad telling me how he did the same on the cylinder head of the lifeboat he was the mechanic of back in the 40's .
I thought he said they used brass studs ?
Nice job! From the outside, you can hardly see the repair, but do you do anything to the interior ends of the bolts, or just leave as-is?
This is awesome…
Question. On your mole grips you have welded a nut to the main grip handle.. wossatfor?
Ive seen copper stitching done, same thing but with copper thread, is there an advantage to using copper..?
Fantastic.
Interesting vid,
How do you seal the crack in between the studs? Apologies if I’m being thick, it just seems like it’d leak between the studs.
I'm afraid I didn't quite understand why You drill out the bolts in the B-holes again? Are the bolts replaced by bigger ones whose threads tooth up with the ones in the A-holes?
Being from Germany I don't compete with Norfolk English all too well, sorry.
🙂
Cool that this process is getting documented. First time I heard of it. How long did all this take?
Where do you get those flap discs from?
One question and I am an engineer and understand cast iron, could you not weld the tops and possibly insides of the inserts together? or would the heat split the block?
I looked into this, heating which makes them contract and expand can distort the threads which is sealing the water jacket and split the block open again slightly.
@@tinkeringwithtanks Understood. I'm sure your way works a treat.
People don't realise the man hours that go into these jobs
Why couldn’t you braze the cracks ?
😎👍
Isn't it funny when people look like their mic muffs. 😂
Great work, call it arrogance but I also work by the principle that if it can be done I can do it to, with a degree of success.
I'd wack a 3406 in it or big cam 4 I'm surprised the heavy haulage firm didn't not everything has to be all original restoration that's just my opinion
😃😃😃👍👍👍👍
J B weld it man
crack? what crack?
The least boring bit of boring I've ever seen !!!!