I have only welded one cast iron cylinder, welded on an intake stub, with TIG set on AC with 5% cleaning, used nickel rod, no preheating, it amazingly didn't crack or leak, and is still in use many years later.
I prefer the long videos, but will watch regardless. As a bike mechanic/rider, shop owner and motorcycle rider your channel is pure gold. so much knowledge about so many things.
Hi Paul Brandon no high ball I like you working on the Cubs I have one thank you I like seeing you work on the cup I have one thank you thanks for your video 2023
With that hacksaw, I thought I was watching Allen Millyard. All your work is pure genius and art. Any format is fine with me as long as the videos keep coming. Thank you.
Gents - please keep the videos coming. Love Paul's "feel" with the sketches, materials and processes. I make a point of looking directly when a new vid is uploaded.
As a younger viewer I enjoy these videos because of the quality and experience in the engineering together, with the bikes, bicycles etc really shows. The way you explain what your doing or planning really engages with the viewer and can only show how appreciated you must have been in your teaching days with the bicycles. I've always been looking for your type of videos for around 10 years and have only found a few that are as good as yours. I'm sure there are many people who watch because they appreciate the fact you know what your doing and have years of experience in doing it. Always look forward to the next video, thank you 👍 ps. would be good to see a Mitch on the other side of the camera.
@@paulbrodie You made my day by mentioning a Speedway bike frame in one of your videos. Speedway Grand Prix is my favourite motor sport, unfortunately it doesn't get the recognition it deserves. I am a veteran 'cycle' speedway rider, alloy single speed 'Archie Wilkinson' frame, straight blade forks and of course no brakes! I would love to make myself a custom frame.
@@pauljay5308 Paul, you are not alone in wanting to make yourself a custom frame. Once the bug bites, it sometimes does not let go. Thanks for watching! 😉
I too have "welded" (not brazed) cast a few times. I ordered beautiful Pure Cast rod from a DHC Cobra Dealer near Grass Valley, CA. I do everything you do for prep and veeing out. I preheat about a half an hour, do the weld and then post heat for an hour or two. If you cannot find a source for the pure cast rod (not nickel alloy or arc rods), you can use old piston rings as a second choice (not the oil scraper, of course). Very educational and entertaining.
As far as we are concerned that is the ONLY way to weld cast iron. ,,,, You forgot tell about cast iron flux, though,,,,which is also hard to come by. I have been told you can use borax but I have never tried it.
I started my working career over 50 years ago and all the welding we did was gas welding, Arc welding, silver solder and brazing, in the last few years i've been TIG welding cast with stainless rods, i welded a large old cast broken in half bench vice with stainless TIG that was about 5 years ago and it's taken a lot of hammering, we used to bury cast and tool steel (power press dies) in hot sand, an oil drum full of sand with a gas ring under it.
Paul, You do some mighty fine work. Watching your work and repairing those fins, gives folks the confidence to fix their fins. Pleasure watching your informative videos. I enjoy your videos long or short.
I have seen cast iron after welding being placed in tray/box of sand which was preheated and then allowed slowly to cool. Also can use sand box as a medium to apply heat to small parts by heating sand to allow a more uniform temper!
Thanks Paul, I learnt your tip well. I remember trying to use a stick welder to do this, well it stuck OK, but was very ruff. Mind you, I did use heat-black which helped to hide it #! ? Your new idea seems much more reliable. Thanks have a great say.
Man, that is fantastic work but that tool, as much of the things you make, is pure art. A few years ago I took my Ironhead heads to a shop for a valve job, and, (a real man) I carried both heads. The door, a swing out door, required one of my hands and I dropped a head, breaking two fins. The guy knew a welder. He heated the head in his barbecue grill till a rolled up newspaper pressed into the head smoldered and then he tig welded it with (I think) nickel rod. I think he said he returned it to the grill to cool down overnight. It looked great and never cracked.
Paul, I like the long videos, but I think you can do whatever is more comfortable to you and we will enjoy. The most important part is to have some fun doing the channel too. Take care!
Brazed a lot of cast when I had a sawmill the wife hated that I used a cookie sheet and the oven to pre-heat parts then let them cool in the oven. Had good results when the parts are heated to 500f. You are an artist and you restore art. Thanks for the ride along and the time it takes to make edit and UL these vids for us to follow along...
@@paulbrodie Nor sawmill parts Paul.... lol. Amazing work never watched your channel before seems the old ways are going to be all gone soon. Thanks sir!
I like your approach to stuff. Not the way I would attempt a job. Your way always seems better. Thanks for the videos. I'm an old dog trying to learn new tricks.
I'm a fan of the long videos, I find them extremely relaxing. I'd totally hang out all day and watch you work. Whatever format you think will grow the channel is a decision that you and Mitch will have to make, though!
Paul I've not long found your videos and enjoy them very much. Binge watching them in fact. Please don't change the format too much your videos are well worth watching. The longer the better!
Paul your shop made jig is awesome. I will be copying your idea. I repurposed an old kitchen oven lined with firebrick and made an outdoor propane preheat oven with a digital BBQ smoker temp probe clamped to the jug to monitor temp. I preheat the jug to 300° F for 20-30 minutes. I then move it to an insulated cabinet with two 300 watt heat lamps where I perform all my cast iron brazing repairs.
Your job is making videos and I’ll leave that up to both you and Mitch! My job is watching your videos! I’m grateful for your efforts in front of and behind the camera!
I am glad to see you using a carbonizing flame to braze. I see so many UA-cam videos where, even professional welders, try to use a neural flame and then wonder why their braze job has gas pockets.
@@paulbrodie I guess it could just be the way modern cameras pick up the light/color of the torch flame. I thought I could hear the soft sounds of a carbonizing flame instead of the hiss of a neutral flame, but again, that could be due to my hearing loss and the fact that I use headphones. I am 76 and first learned to torch weld and braze in the Army while in Germany (64 65 ish can't remember exactly) from two Mexican soldiers. I like torch welding because it is slow, and you have a lot more control.
@@davidtyndall8880 David, a hissing flame can be one of two things, or both. Yes, an oxidizing flame can hiss, but large flames also hiss. This is natural. So, you have to figure out what's going on!
Loverly quality work Paul, looking forward to the new format. I Had a tiger cub, run on methanol which I used for grass track racing in the uk when I was 13/14 years old great days.
Nice work once again Paul! You’re lucky to have found a cylinder head that quick ! I’m still looking for one myself. Stay safe with the bad weather going on in BC !
New format sounds great, but perhaps also an occasional long video? I quite enjoy sitting down with some food and a coffee and watching your longer ones :)
I have a 1957 200 Tiger Cub I inherited from my Father in Law. It was a legit barn find, as he had parked it in his in-laws barn after college, and that’s where it sat after the chain broke. It’s as I found it still, and complete, including the chain hanging over the handlebars. I have to break that thing out and see if I can get her back in service. In memory of “dad” RIP Michael Lewis Higgins…..I miss you.
Paul, Mitch, thanks again! My initial reflex is to prefer the status quo. We humans just don't like change all that much. :) But, it wouldn't be a very rigorous decision without seeing the short form.
Impressive array of modern mini sanders Sir! Loved this but would prefer much longer when I am in the mood. Impressively equipped shop too. One time owner of a 'Tribsa' Bonneville T120 in a Rocket frame with Steib sidecar bought with University grant cash.
I dig the shorter video because I see "45:00" and know I don't have time to watch it, or I watch part of it and coming back to it gets lost in the YT maelstrom. That said, it's hard to argue with the volume of awesome stuff in the long videos. I'll be watching what I can either way, so no worries there. Thanks for making these videos!
Another great show lads. The photography, lighting and presenter work well together. I recon 2 shows a week would work.It sounds like you have a really good deal with the cylinder head you lucky thing! 👍
Good work... Personally I prefer the longer format...it really allows you to go into depth/be more informative (just my pennies worth!) Hope you're all staying dry over there in BC
Awesome. Btw, to pre heat your work piece evenly put it in the oven. This will reduce the stress in the material quite a bit when you start using your torch. A regular kitchen oven can easily go to 200/220 dergrees C.
@@paulbrodie I know the feeling... Whenever I'm in the same situation,... I order it from China. Most likely I'll get it faster than searching in my workshop.
I rode an early Yamaha RD 250 with a square barrel, and my RD 350 also was square barreled;with 2 cut outs on the square side faces where rubber inserts would plug lengthwise to decrease fin vibration. Very noisy without.
Long or short videos are fine. Its the content that I enjoy. Its great to see the work that can be done in a home shop without too many fancy tools. You can do great work with a file and some sand paper 👍
Yes, I suppose I did, even though my square head has 4 broken fins, a welded up exhaust port, and an enlarged, ovalized bore for the exhaust valve guide.
Paul: "I'm just gonna braze a tiny little and very thin fin on this barrel then hacksaw a thin piece off" 😱 I'd be shitting my pants the whole time expecting to break more fins off.... But I guess it's not a worry to a guy that can repair anything. Good Job and keep up the great work... Looking forward to the new video format. 😁👍
I read the title as Finished Fixin'- knowing more than a little french as I do. I appreciate your anecdotes from days of yore. When you got out the hacksaw I had flashbacks to Allen Millyard videos. Regarding the chain of exchange; I have a professional VHS camera which I am prepared to exchange for a better personality.
You are a funny man! I never thought to contact Allen Millyard to see if was ok to use a hacksaw.. What he can do with a hacksaw and a Tig welder is amazing.
Another great video; always a pleasure to watch. Thank you both. Paul, you really are the master of clamping. In the unlikely event that you run out of new jobs, then maybe consider asking Mitch to assemble a compilation of clamping jigs. Looking forward to the next one.
Paul, just found your channel. I see not much has changed since you were welding up trials bike frames in the LB metal shop. You had mad skills even then. Cheers!
Hi, and greetings from Great Britain, in fact a windy Wiltshire. Would you care to say whether welding the cast-iron is preferable to brazing it. Horses for courses? Any particular reason? Perhaps not having to get the cast-iron so hot? More choice of brazing rod? So many questions - sorry. Loved your special clamping tool - ingenious!. PS: nearly forgot - any tips for repairing broken off aluminium fins? Thank you, and for the video too, of course
Hello Great Britain! To be honest, I have never welded cast iron. I have only brazed it. So, just doing what I know. Welding would require more heat, and being close to the cylinder bore could result in the dreaded warpage!
I actually prefer the short videos so that I can watch them while having a tea. I'm English, so it has to be tea. But whatever is good for you giys to keep the videos rolling
I was surprised to see you posted a video, with all the flooding going on in BC, thought you might have lost your place. Hope you and Mitch are safe. If you're doing 2 shorter videos a week; which sounds good, will you still do a longer video every now and then? Enjoy seeing you hammer down a long list of "to do".
No but I wish , admiring your approach , and skills I had been restoring old bikes since kid , but in different circumstances using a few tools , often creating them by myself that watching you is honey for my soul , I wish to meet you on the road same day ,enjoying immensely The best REGARDS Ziggy Canada
Hello Paul - I'm curious about the choice of attaching aluminum to cast iron, in regard to coefficient of thermal expansion between the two materials. The aluminum has about twice the expansion rate of cast iron. Does the braze material act as a more ductile medium between the two materials?
Komakai, I have never brazed aluminum to cast iron. Which video have you been watching? In this video I brazed cold rolled steel flat bar to the cast iron cylinder.
I have an old Oven from Craigslist I got for like $50,in the shop- it's dirty but it works, I pre-heat cast iron parts in there at 350 degrees for 30-40 mins, then braze, then wrap up tightly in a welders fire blanket and ontop of that an old comforter....... 3hrs later it's still too hot to grab without gloves, no messy lime, and been welding cast iron for years this way?
Paul, can I ask you couple a question re fin repair, what material did you use to replace the missing fin? Sorry if you mentioned it and I missed it. Also, how much more “pre heat” could a barrel take before you risked any distortion in the bore? Thank you
The steel I added was just 1018 cold rolled; pretty ordinary. I could have preheated more. I don't think more heat causes distortion in the bore, it just get hotter. Welding can cause distortion, so that's why I chose to braze.
Hi Paul, I have big concern about your lack of ventilation and no mask. I have been in the precious metal trade for 61 years and certainly did not use either in the early day. Now I do and notice a difference. Like me you enjoy your work/play and at 77 this year I am still working. I would to see you have that choice. Please consider the venting and a decent industry mask for the future. Your still a young guy ;-)
Eric, thank you for your concern, but I think you are overly concerned. What would the mask be used for - brazing? I do so little brazing that bottles last me almost a year between refills.
@@paulbrodie Hi Paul, yes only one bottle a year but how many years already from when you started, and how many more would you like ;-) A good twin charcoal filter best as they have replaceable components. The flux I use is saltpeter and borax mix with propane and oxygen, I can melt platnum with that so the fumes need to be removed from my 1100 foot basement workshop. I still ride modern trials and need all the lung capacity I have. Lost family members over the years to the nasty C. I just care :-)
If you have DC TIG, then TIG brazing is a far better process for replacing a fin than using gas. Far less heat goes into the part, cleaner, no need for pre-heat, or messing around with slowing down the cooling process. It's also far faster, once the prep work had been done, TIG brazing a single fin back to cylinder would take about 5 minutes. Another nice thing is the process is very controllable, and final finishing takes a lot less time. The only downside is that filler material is quite costly. It's not possible to use gas brazing rods, as these have lots of zinc, and cannot be used with a TIG set.
I have only welded one cast iron cylinder, welded on an intake stub, with TIG set on AC with 5% cleaning, used nickel rod, no preheating, it amazingly didn't crack or leak, and is still in use many years later.
The Welding Gods were obviously smiling on you that day!
@@paulbrodie I learned the technique from welding tips and tricks on YT!
I realy enjoy your films. Real good old knowledge, its gard to find. Thank you.
Thank you Stefan.
old school quality and craftsmanship!!!
Thank you Jim.
It is a pure joy watching a master at work . I'm 68 years old and still learning , Thanks.
Thank you Michael.
I prefer the long videos, but will watch regardless. As a bike mechanic/rider, shop owner and motorcycle rider your channel is pure gold. so much knowledge about so many things.
Hi Paul Brandon no high ball I like you working on the Cubs I have one thank you I like seeing you work on the cup I have one thank you thanks for your video 2023
With that hacksaw, I thought I was watching Allen Millyard. All your work is pure genius and art. Any format is fine with me as long as the videos keep coming. Thank you.
Thank you David :)
Excellent repair.
Thanks Lucas.
Gents - please keep the videos coming.
Love Paul's "feel" with the sketches, materials and processes. I make a point of looking directly when a new vid is uploaded.
As a younger viewer I enjoy these videos because of the quality and experience in the engineering together, with the bikes, bicycles etc really shows. The way you explain what your doing or planning really engages with the viewer and can only show how appreciated you must have been in your teaching days with the bicycles. I've always been looking for your type of videos for around 10 years and have only found a few that are as good as yours. I'm sure there are many people who watch because they appreciate the fact you know what your doing and have years of experience in doing it. Always look forward to the next video, thank you 👍
ps. would be good to see a Mitch on the other side of the camera.
Thank you Herman. How can I say this?... Mitch is a little camera shy!
Love watching these videos. Fantastic workmanship and attention to detail.
Thank you Paul! 😉
@@paulbrodie You made my day by mentioning a Speedway bike frame in one of your videos. Speedway Grand Prix is my favourite motor sport, unfortunately it doesn't get the recognition it deserves. I am a veteran 'cycle' speedway rider, alloy single speed 'Archie Wilkinson' frame, straight blade forks and of course no brakes! I would love to make myself a custom frame.
@@pauljay5308 Paul, you are not alone in wanting to make yourself a custom frame. Once the bug bites, it sometimes does not let go. Thanks for watching! 😉
I too have "welded" (not brazed) cast a few times. I ordered beautiful Pure Cast rod from a DHC Cobra Dealer near Grass Valley, CA. I do everything you do for prep and veeing out. I preheat about a half an hour, do the weld and then post heat for an hour or two. If you cannot find a source for the pure cast rod (not nickel alloy or arc rods), you can use old piston rings as a second choice (not the oil scraper, of course).
Very educational and entertaining.
Thanks for the tips!
As far as we are concerned that is the ONLY way to weld cast iron. ,,,, You forgot tell about cast iron flux, though,,,,which is also hard to come by. I have been told you can use borax but I have never tried it.
I started my working career over 50 years ago and all the welding we did was gas welding, Arc welding, silver solder and brazing, in the last few years i've been TIG welding cast with stainless rods, i welded a large old cast broken in half bench vice with stainless TIG that was about 5 years ago and it's taken a lot of hammering, we used to bury cast and tool steel (power press dies) in hot sand, an oil drum full of sand with a gas ring under it.
I was taught to weld with gas as well likewise 50 years ago.
I like the shorter, tighter video approach. Nice work on the fins. Nobody does that. You're a step ahead.
Paul, You do some mighty fine work. Watching your work and repairing those fins, gives folks the confidence to fix their fins. Pleasure watching your informative videos. I enjoy your videos long or short.
Thank you Joe.
I have seen cast iron after welding being placed in tray/box of sand which was preheated and then allowed slowly to cool. Also can use sand box as a medium to apply heat to small parts by heating sand to allow a more uniform temper!
Thanks Paul, I learnt your tip well. I remember trying to use a stick welder to do this, well it stuck OK, but was very ruff. Mind you, I did use heat-black
which helped to hide it #! ? Your new idea seems much more reliable. Thanks have a great say.
Thanks Chris. You have a great say too.
Man, that is fantastic work but that tool, as much of the things you make, is pure art. A few years ago I took my Ironhead heads to a shop for a valve job, and, (a real man) I carried both heads. The door, a swing out door, required one of my hands and I dropped a head, breaking two fins. The guy knew a welder. He heated the head in his barbecue grill till a rolled up newspaper pressed into the head smoldered and then he tig welded it with (I think) nickel rod. I think he said he returned it to the grill to cool down overnight. It looked great and never cracked.
Quite the story, David. At least the fins got fixed. I'm sure you are more careful opening doors now!
Fantastic job. Working with love, gives the best results.
From Portugal, congratulations.
Hello Portugal! Thanks for watching.
Nice job Paul and as usual terrific videography Mitch.
It is always nice watching a craftsman at work! Cheers!
Thanks Joe.
You the man Paul, nice work.
Thanks kindly Robert.
Paul, I like the long videos, but I think you can do whatever is more comfortable to you and we will enjoy. The most important part is to have some fun doing the channel too. Take care!
Excellent! Great repair technique and using the custom designed/made jig was brilliant.
Thank you Jon.
Brazed a lot of cast when I had a sawmill the wife hated that I used a cookie sheet and the oven to pre-heat parts then let them cool in the oven. Had good results when the parts are heated to 500f. You are an artist and you restore art. Thanks for the ride along and the time it takes to make edit and UL these vids for us to follow along...
Thanks Jim. Yes, women aren't fond of motorcycle parts in the kitchen oven...
@@paulbrodie Nor sawmill parts Paul.... lol. Amazing work never watched your channel before seems the old ways are going to be all gone soon. Thanks sir!
Awesome! Thanks for all the tips! Restored an old PUCH SGS 250 - Loved doing it!
Hey Paul & Mitch, I like the idea of twice each week. I really enjoy your lessons!
Thank you Tom.
Paul l just look forward to all your videos whether there long or short love your work.
I like your approach to stuff. Not the way I would attempt a job. Your way always seems better. Thanks for the videos. I'm an old dog trying to learn new tricks.
I'm still learning myself. Thanks for watching.
2 videos per week sounds great.
We feel it's a better format for us right now. Thanks :)
Awesome work!
Thanks Steve!
new format sounds alright to me!
Sorry, but i like the longer Videos. It‘s always a inspiration to me.
Thanks for showing this tricky repair.
I look forwared to the bi-weekly videos!
I'm a fan of the long videos, I find them extremely relaxing. I'd totally hang out all day and watch you work. Whatever format you think will grow the channel is a decision that you and Mitch will have to make, though!
Thank you for the great videos. How too Do it Right! the Repair was spot on.
Thank you David.
The squircular barrel looks really neat. If you had no lime a gas bbq works well for preheat and then a slow post weld cooling off period too.
I do have a gas BBQ, but the lime uses less propane.
@@paulbrodie cant make your tea in a bucket of lime though ,,, id have a steak in with the barrel too. even one for Mighty Mitch
That's the Allen Millyard trick ;)
@@Metal-Possum he would have cup cakes too though ,,,
Paul I've not long found your videos and enjoy them very much. Binge watching them in fact. Please don't change the format too much your videos are well worth watching. The longer the better!
you're the man, awsome. That's real handcraft
Paul your shop made jig is awesome. I will be copying your idea. I repurposed an old kitchen oven lined with firebrick and made an outdoor propane preheat oven with a digital BBQ smoker temp probe clamped to the jug to monitor temp. I preheat the jug to 300° F for 20-30 minutes. I then move it to an insulated cabinet with two 300 watt heat lamps where I perform all my cast iron brazing repairs.
Your job is making videos and I’ll leave that up to both you and Mitch!
My job is watching your videos!
I’m grateful for your efforts in front of and behind the camera!
Thank you Chris.
Nice repair job.
When I was 18...
and sick of school I didn't know what I wanted to do. I bought a welder, I got the fever...
I remember that one too.
Nice work Paul, I appreciate the stories. Shorter videos out more frequently sounds good to me!
Thank you Ben.
I am glad to see you using a carbonizing flame to braze. I see so many UA-cam videos where, even professional welders, try to use a neural flame and then wonder why their braze job has gas pockets.
That's interesting because I always use a neutral flame. I did not see any gas pockets in my braze job.
@@paulbrodie I guess it could just be the way modern cameras pick up the light/color of the torch flame. I thought I could hear the soft sounds of a carbonizing flame instead of the hiss of a neutral flame, but again, that could be due to my hearing loss and the fact that I use headphones. I am 76 and first learned to torch weld and braze in the Army while in Germany (64 65 ish can't remember exactly) from two Mexican soldiers. I like torch welding because it is slow, and you have a lot more control.
@@davidtyndall8880 David, a hissing flame can be one of two things, or both. Yes, an oxidizing flame can hiss, but large flames also hiss. This is natural. So, you have to figure out what's going on!
you have great torch skills I admire that!
Thanks Kenny. I learned to braze when I was 12 years old, and built my first mini-bike.
Very effective techniques, Well Done-Thank you✅👍
Loverly quality work Paul, looking forward to the new format. I Had a tiger cub, run on methanol which I used for grass track racing in the uk when I was 13/14 years old great days.
Now that Cub must have sounded loud and good!
👍👍😎👍👍 - whatever works for you both…… shorter length but twice as often 👍. I’ll promise to watch them all either way. All the best to you both…..
Thank you Joel.
I prefer the longer vids as well.. but Mr.Brodie, you do whatever makes you and Mitch more comfortable. Looking forward to the next video. Cheers!
Nice work, as ever. The new format sounds great to me. 👍
Once again amazing work performed by a master.
Articifer at work. I have the same job ahead of me. I will NOT be doing it myself. I'll be looking for someone with your skills. Lovely to watch.
Nice work once again Paul!
You’re lucky to have found a cylinder head that quick ! I’m still looking for one myself. Stay safe with the bad weather going on in BC !
Thank you Sebastien. I guess I am lucky to have a square cylinder head but it sure needs a lot of work.
New format sounds great, but perhaps also an occasional long video? I quite enjoy sitting down with some food and a coffee and watching your longer ones :)
Hi Mitch the Marvellous Mystery Man.
I have a 1957 200 Tiger Cub I inherited from my Father in Law. It was a legit barn find, as he had parked it in his in-laws barn after college, and that’s where it sat after the chain broke.
It’s as I found it still, and complete, including the chain hanging over the handlebars. I have to break that thing out and see if I can get her back in service. In memory of “dad” RIP Michael Lewis Higgins…..I miss you.
Wow that's a story! I hope you do get that '57 Cub working again.
Paul, Mitch, thanks again! My initial reflex is to prefer the status quo. We humans just don't like change all that much. :) But, it wouldn't be a very rigorous decision without seeing the short form.
The focus will be better. Time will tell.
That's a nice pair of Kef 101 speakers you have there - in a workshop!
Good eye Chris. Bought them in 1979 from Big Bird Sound in Vancouver for $600/pr. They're still great after all these years.
I like the long video's too, but getting two vid's a week sounds cool as well. Im sure it'll work out either way. Thanks for taking the time to share.
Thanks Rick.
Impressive array of modern mini sanders Sir! Loved this but would prefer much longer when I am in the mood. Impressively equipped shop too.
One time owner of a 'Tribsa' Bonneville T120 in a Rocket frame with Steib sidecar bought with University grant cash.
Paul, Mitch, I like the idea of the longer videos but twice a week!! That’s the option you forgot to tell us about 😉
I believe I mentioned twice a week at the start of the video.
@@paulbrodie you did but not for 2 long videos
2 videos a week! Awesome! Nice to have shorter videos I can watch during my breaks
I dig the shorter video because I see "45:00" and know I don't have time to watch it, or I watch part of it and coming back to it gets lost in the YT maelstrom. That said, it's hard to argue with the volume of awesome stuff in the long videos. I'll be watching what I can either way, so no worries there. Thanks for making these videos!
Thank you backmarker44.
This guy knows his stuff, and makes it interesting.
Thanks Michael.
Another great show lads. The photography, lighting and presenter work well together. I recon 2 shows a week would work.It sounds like you have a really good deal with the cylinder head you lucky thing! 👍
Good work...
Personally I prefer the longer format...it really allows you to go into depth/be more informative (just my pennies worth!) Hope you're all staying dry over there in BC
Not changing my style; I'll still go into depth, it will just be shorter.
Awesome. Btw, to pre heat your work piece evenly put it in the oven. This will reduce the stress in the material quite a bit when you start using your torch. A regular kitchen oven can easily go to 200/220 dergrees C.
I have a toaster oven in my shop. Do you think I can find it?
@@paulbrodie Give it a try ;-)
@@PhG1961 You don't have to convince me. I just can't find my toaster oven...
@@paulbrodie I know the feeling... Whenever I'm in the same situation,... I order it from China. Most likely I'll get it faster than searching in my workshop.
My first visit here - but it won't be my last! Great engineering skill you have- almost like magic? alchemy? Subscribed.
Spud, thanks for signing up! Sometimes there is a little bit of magic in the air :)
Nice job Paul, like you, I got most of the brazing jobs in my youth. I notice these days you can also tig bronze the pieces on.
Thank you. Yes, welding techniques have changed over time.
I rode an early Yamaha RD 250 with a square barrel, and my RD 350 also was square barreled;with 2 cut outs on the square side faces where rubber inserts would plug lengthwise to decrease fin vibration. Very noisy without.
Small world. In 1973 I bought a '72 R5 350 Yamaha twin. 8000 miles in 6 months!
Long or short videos are fine. Its the content that I enjoy. Its great to see the work that can be done in a home shop without too many fancy tools. You can do great work with a file and some sand paper 👍
Thanks Robert. Yes, file and emery is one of my specialties.
Loved my Tiger Cub, sadly written off in a crash after I had it for 3 years, when someone came over a hump back bridge on the wrong side of the road.
Sorry to hear the Cub is no more..
Wow you got a good deal square heads in the UK go for around the £500 quid mark I prefer the oval head with the big inlet valve
Yes, I suppose I did, even though my square head has 4 broken fins, a welded up exhaust port, and an enlarged, ovalized bore for the exhaust valve guide.
oddly satisfying job
Nice job, 👍 I like the idea of twice weekly videos. Just keep the videos coming, thanks 👍.
Paul: "I'm just gonna braze a tiny little and very thin fin on this barrel then hacksaw a thin piece off"
😱 I'd be shitting my pants the whole time expecting to break more fins off.... But I guess it's not a worry to a guy that can repair anything. Good Job and keep up the great work... Looking forward to the new video format. 😁👍
Thank you XPNDBL
@@paulbrodie - Send my thanks to Mitch as well... 😁
@@xpndblhero5170 Of course!
I read the title as Finished Fixin'- knowing more than a little french as I do. I appreciate your anecdotes from days of yore. When you got out the hacksaw I had flashbacks to Allen Millyard videos. Regarding the chain of exchange; I have a professional VHS camera which I am prepared to exchange for a better personality.
You are a funny man! I never thought to contact Allen Millyard to see if was ok to use a hacksaw.. What he can do with a hacksaw and a Tig welder is amazing.
Another great video; always a pleasure to watch. Thank you both.
Paul, you really are the master of clamping. In the unlikely event that you run out of new jobs, then maybe consider asking Mitch to assemble a compilation of clamping jigs.
Looking forward to the next one.
Thank you Hertog.
I’m going to keep my 👁 on you. Well done and God bless.
Paul, just found your channel. I see not much has changed since you were welding up trials bike frames in the LB metal shop. You had mad skills even then. Cheers!
Well, I do have more experience now...
Vermiculite works well for slow cooling and isn't as messy as lime.
Beautiful job
I have 2 cubs std and sports cracking little bikes great videos for cub fans thank you I have subscribed .
Thanks for watching. I get my second Cub next spring. A '64 model with matching numbers. Basket case!
Hi, and greetings from Great Britain, in fact a windy Wiltshire. Would you care to say whether welding the cast-iron is preferable to brazing it. Horses for courses? Any particular reason? Perhaps not having to get the cast-iron so hot? More choice of brazing rod? So many questions - sorry. Loved your special clamping tool - ingenious!. PS: nearly forgot - any tips for repairing broken off aluminium fins? Thank you, and for the video too, of course
You might find tomorrow’s video helpful for aluminum fins 👍
Hello Great Britain! To be honest, I have never welded cast iron. I have only brazed it. So, just doing what I know. Welding would require more heat, and being close to the cylinder bore could result in the dreaded warpage!
I actually prefer the short videos so that I can watch them while having a tea. I'm English, so it has to be tea. But whatever is good for you giys to keep the videos rolling
Thank you Peter.
I was surprised to see you posted a video, with all the flooding going on in BC, thought you might have lost your place. Hope you and Mitch are safe. If you're doing 2 shorter videos a week; which sounds good, will you still do a longer video every now and then? Enjoy seeing you hammer down a long list of "to do".
We are safe, thank you. We'll try shorter videos and see how it goes.
Precision , excellent repair , REGARDS Ziggy
Thanks Ziggy. Same Ziggy I met at Davenport years ago?
No but I wish , admiring your approach , and skills I had been restoring old bikes since kid , but in different circumstances using a few tools , often creating them by myself that watching you is honey for my soul , I wish to meet you on the road same day ,enjoying immensely The best REGARDS Ziggy Canada
@@zbigniewkozlowski2749 Well, now I know two Ziggys :)
@@paulbrodie Most of them are good guys REGARDS Ziggy
Hello Paul - I'm curious about the choice of attaching aluminum to cast iron, in regard to coefficient of thermal expansion between the two materials. The aluminum has about twice the expansion rate of cast iron. Does the braze material act as a more ductile medium between the two materials?
Komakai, I have never brazed aluminum to cast iron. Which video have you been watching? In this video I brazed cold rolled steel flat bar to the cast iron cylinder.
i did 12 fins on one cylinder same way good vid well done
12 fins... that's a lot of brazing!
@@paulbrodie ok it was alloy was a 850 Guzzi Le mans and the lip on the rocker box
@@pm270100 ok, so Tig welding.
@@paulbrodie yes i do a lot of tig on old stuff BSA
@@paulbrodie hit me up on face book
I hope you and Mitch are OK Paul, AVE seems to be ok but short on some things as a result of the large amount of rain.
We are fine, thank you. The flooding is 1/2 hour east of us.
Triumph tiger cub engine in the later BSA Bantam 175 frame for offroad
I have an old Oven from Craigslist I got for like $50,in the shop- it's dirty but it works, I pre-heat cast iron parts in there at 350 degrees for 30-40 mins, then braze, then wrap up tightly in a welders fire blanket and ontop of that an old comforter....... 3hrs later it's still too hot to grab without gloves, no messy lime, and been welding cast iron for years this way?
Yes, lime can be a bit messy. I have a toaster oven that heats up parts nicely. Thanks for your comments.
Paul, can I ask you couple a question re fin repair, what material did you use to replace the missing fin? Sorry if you mentioned it and I missed it. Also, how much more “pre heat” could a barrel take before you risked any distortion in the bore?
Thank you
The steel I added was just 1018 cold rolled; pretty ordinary. I could have preheated more. I don't think more heat causes distortion in the bore, it just get hotter. Welding can cause distortion, so that's why I chose to braze.
Hi Paul, I have big concern about your lack of ventilation and no mask. I have been in the precious metal trade for 61 years and certainly did not use either in the early day. Now I do and notice a difference. Like me you enjoy your work/play and at 77 this year I am still working. I would to see you have that choice. Please consider the venting and a decent industry mask for the future. Your still a young guy ;-)
Eric, thank you for your concern, but I think you are overly concerned. What would the mask be used for - brazing? I do so little brazing that bottles last me almost a year between refills.
@@paulbrodie Hi Paul, yes only one bottle a year but how many years already from when you started, and how many more would you like ;-)
A good twin charcoal filter best as they have replaceable components. The flux I use is saltpeter and borax mix with propane and oxygen, I can melt platnum with that so the fumes need to be removed from my 1100 foot basement workshop. I still ride modern trials and need all the lung capacity I have. Lost family members over the years to the nasty C.
I just care :-)
@@paulbrodie And I love what your doing, my first new bike was a 1960 cub.
@@ericbrackenbury Thanks Eric, that must have been a proud moment!
@@paulbrodie Yes and the usual story I'm sorry I sold it but needs must and that. Keep up your good work sir so we can all enjoy the video's
If you have DC TIG, then TIG brazing is a far better process for replacing a fin than using gas. Far less heat goes into the part, cleaner, no need for pre-heat, or messing around with slowing down the cooling process.
It's also far faster, once the prep work had been done, TIG brazing a single fin back to cylinder would take about 5 minutes. Another nice thing is the process is very controllable, and final finishing takes a lot less time.
The only downside is that filler material is quite costly. It's not possible to use gas brazing rods, as these have lots of zinc, and cannot be used with a TIG set.
I do have quite a few Tig brazing rods. I really don't understand the lack of need to preheat the cast iron.
Sure it`s possible if you`re brazing like brazing should be done. Let the braze rod pick up the heat from the part and melt in.
@@alsobinich463 I usually have to melt the brazing rod with the torch. What you're talking about sounds more like silver solder...
A beautiful job sir.
Thank you Steven.
Wow great! Job!
Thanks pauliebots.
I personally like the long videos
What was the fin repair metal type?
I do not know how many jugs I have thrown away because of broken fins. I was always told fixing them never worked.
These fins are cast iron. Tomorrow our video on Aluminum fin repair comes out.
Really enjoyed that vid. New subscriber here in Nova Scotia.
Hello Nova Scotia!