This was, by far, one of the best instructional videos I have ever seen. After watching and listening to you I feel I could begin to TIG tomorow. You didn't just tell us how, you told us why, and in terms and pictures easily understood. Best of all plain language. I think this a natural talent you don't know you have. It comes from having a curious mind and an impatience for answers. You would easily be a favorite instructor at a tech school. See you in the next one.
Thanks mate. You won't realise just how significant your kinds words have been at a critical moment. My relatively new video camera died on the weekend so I took it all the way into the city given it is still under warranty only to be given the expected story about using it near water etc etc. This experience on top of being sick with the flu at the moment made me think, "You know what, I'm over this." Then this afternoon I was at the hardware store with my wife when your comment popped up and after reading it I had a chat with her and we went straight a nearby shop to buy a new camera. It's amazing how far a few words can go to lifting people up again. :)
Now, you have made my day! I'm 67 years old and a machinist for nearly 40 years here in the USA. I have trained numerous budding machinists and found success useing the same techniques you do. So I recogognised, in you, a quality someone pointed out to me many years ago. Had you decided to chuck UA-cam we would have lost a true talent and comunicator here. I work on small outboards part time and that's how I found you. I look forward to your videos and their veriety.
I certainly hope you comment with some tips you've learned over your long career because I always saw this channel as being about sharing knowledge. I still have so much to learn too!
The episodes are great and I follow them as I can. One other thing that impressed me is the quality of the chat afterwards. A Lot of very decent men at their best. I dip my hat to Stu and the good and interesting men with advice or comments. Women should find this a good source of men at their best.
Hard case I reckon, but I have watched tons of videos on welding aliminium and so far this little segment of yours has been the most practical. Love your videos man, keep them coming
Really enjoyed this one Stu.TIG welding is some of the hardest welding to master. There’s lots to learn about setting up (choosing a tungsten and prepping it, cleaning metal) and then there’s the actual technique of laying the bead. You did a phenomenal job in explaining it all. I’m looking to build my aluminum welding skills up. This video will definitely be a big help!
The great thing about learning to weld is suddenly a whole world of new things you can make becomes open it you. You imagination starts to run wild! :)
The great thing about learning to weld is suddenly a whole world of new things you can make becomes open it you. You imagination starts to run wild! :)
So cool ! I am getting ready to practice Tig welding before welding my I/O hole shut on my aluminum boat ! I am going to put a outboard bracket on so i can fish longer in the cold months. I have learned sooo much from all your videos while doing my first boat ! now i have another project going . Thanks for taking the time to do these !! I wouldnt have a boat at all if I had to pay someone to work on my boats, so these vids help me to be able to actually have a boat !! Kudos.
Excellent instructional video. I know the very 'basics' of welding and have done a few decent jobs with a stick welder, but after watching this, I think I now have a little bit more confidence to give TIG welding a try. I plan on enrolling in a welder certification class thru our local school system's adult education program this winter, and now at least I'll have some understanding on how TIG works. Thank you and please do more videos like this one.
Good video! One other tip is to hold your torch on the weld after you stop. There is post-flow that will cool the weld after you are done and prevent contamination.
Great info. I have zero experience with any type of welding. Interesting side note: I read a hunting guide story several years ago that used boats to go up rivers to their hunting locations. Sometimes the boats would strike rocks in the river bed and leave a jagged rip. To fix holes temporarily, they would pack toilet wax rings and jam them in the hole.
Great tutorial Stu.. learnt a lot from this and may need to borrow my old mans TIG welder for my old Quintrex (hull turns 50 this year) Also finally learnt what TIG actually stands for without Googling it :) Thanks mate
Excellent video makes it look easy almost like fusion welding metal with gas , your lucky to have all the tools to play with welds look ok to me a lot of modern tinnies have heaps of stitch welding my last boat the gunwales were all stitch welded in 3mm aly take care .
Neatly done Stu. One thing with that can holder, make sure there is a plastic bucket to catch the lids under it. Steel, tin, copper (think 2cent pieces!) all react fairly rapidly with aluminium alloys used for marine work.. Drop a lid or two and you may be filing in some 3/4" holes soon after.but no matter what, alloy boats crack over time. Aluminium work hardens, so every wave hit is adding to the process. Take care and hope to see many more from you yet.
great video. hardest thing is aluminum doesnt glow red (like steel) until you've blown a hole in it lol. a proper glass helps but a keen eye and the "feel" of the filler rod helps. having all the right equipment and supplies is a must. the conversation @15:00 is hilarious but true
Excellent video mate. Love the all-round maintenance knowledge you share; it has helped me feel more confident to have a go a these types of jobs! Happy to start diverting some money your way on Patrion mate. 👍👍👍
Going on from my last comment you seemed to have picked uo a few skills one is the shell be right mate well just give it a go. Makes laugh sometimes. Overall very educative and informative.
Great lessons in TIG welding for a tinny application. Now to comment on last week's video. I purposely waited for a week to pass so that I could check the comments regarding "Pimp My Tinny", and was somewhat surprised that only one other person noticed (and commented) that you slipped in a Stuart Allen original tune, (albeit just a short bit of it) in a spot where some music helped fill an audio gap while you were doing paint layers. Don't get me wrong, there are lots of great comments, I just thought maybe a few more of your viewers would have caught that song. I guess not everyone has checked out your music.
I taught myself to weld aluminium recently and am by no means an expert but I thought I would share a couple of things I found - first if your tip is turning funny colours it could be you don't have a long enough post-gas cycle. The tungsten is still pretty hot for a long while and if you don't keep shielding it will discolour and make controlling the arc net time you light up harder. Secondly I had a lot of problems with leaks - the problem is if you have a a leak in your lines etc it lets air in and (in the worst case) it was 50/50 whether the aluminium would melt or catch fire! In other cases it would just take forever to puddle and then suddenly it would blow through. Good luck with it!
Great video Stu. I'm a little later to the show. Have you tried aluminum brazing? I've had good luck wit it especially on old contaminated al. The advantage is you only have to heat the metal up to 380C or so and a propane torch will do the job. The disadvantages are cost of consumables and remelting joints the are close by.
nice basic Tig welding, I prefer holding torch +-80deg and filler rod at 15deg from plate, no need to sharpen the tungsten with alluminium and no tungsten stickout is best. Pro welder DEW Marine Propeller Repairs.
i totaly agree whit all ya say but ya forgot to emhasyse the inportance of using the right filler material rod ,as there are many many different kinds of aluminium ,one needs to be aware that one is using the right material filler rod , i so enjoy your vids mate , greets from an belgian expat in the philippines
If you don't have access to a tig drill holes like stu did to stop the crack continuing then look up how stu fixed holes in a boat without welding and plate inside aswell if possible, your car windscreen is held in with SIKA it is bloody strong stuff if surface is prepared properly even without rivets you don't need checker plate smooth ally will do
Try to pre heat your aluminum to around 200 that will help and have on yor bench a thick. metal top to absorb the heat because aluminum disperses heat very quickly
Hi mate. I probably wasn't so clear about that. I think the Green Machine's split was caused by the accident which is fine to just weld up. It is other boats i see with multiple broken ribs just from being used in rough water that worry me. I see them get welded and break again soon afterwards.
Stu, I know of at least one class of ship in a navy that were 'retired' because the crack repairs were adding over $100k extra per dry docking. These ships lasted less than 10 years in service each but had a design life of 30 years. Originally dry docking was planned to be 5 yearly, it became an annual thig but not for anti foul/anode replacement, but full paint strip , crack check and repaint. The last one wasn't even anti fouled, just normal poly paint was applied. Actually, the last one wasn't even commissioned!
that weld will eventually re-crack, where the weld had ended there is what is called a fish eye. that there will concentrate stress onto that area and will be the first point to go. presumably it had originally cracked due to a build up of stress in that point or an impurity in the original welding on the chine or even an impurity in the plate or a manufacturing error. without actually verifying there is full penetration on the other side and the fish eye has been filled in with more filler towards the end of the weld or sanded out, it is likely that spot well envelop a crack again.
Just tripped over this one Stu - nice tutorial. I'd like to redo some welds on our little tinnie that were absolute butchery by the shop that did them. Now I've got some confidence watching you do it. I'm still slightly unclear on whether my first rig should be TIG or MIG. Thoughts?
As a general purpose welder MIG would be better. You need to have a wire spool gun though as aluminium is too soft to push all the way through the lead.
Sounds like a patch would be in order. First of all, is the boat fibreglass or aluminum, this is important to know because obtaining the correct materials for the repair depends on knowing.... Okay, jokes aside, I'm sure you mean it's an aluminum boat. My 2 cents would be that you'd probably never get the hole sealed by merely trying to weld the shards back together, so I'd guess pounding the remaining skin back as flat as possible, then clean and prep the surface, as well as the mating surface of a patch to be welded/applied over the damaged area. Not sure whether your hole is in a relatively smooth, flat area of the skin, or whether it includes a fold/ridge/rib or God forbid, the keel. If you are new to TIG (or even welding itself), I would at least consult with an expert in aluminum welding in regards to what an adequate patch would be, and whether to apply it to the outer surface or the inside surface. Either way, after the patch is applied, I'd recommend some precision grinding of the very edges of the patch. If it's on the underside, making it more "smooth" to the surface helps with the dynamics while moving through the water. If it gets applied to the inside (less likely), you don't want a sharp surface for sensitive feet to find at some inopportune moment. A boat depends on seaworthiness. You can't always just pull over and call for a tow truck, so fixing a hole in the hull should be done with a serious approach. You really want it done 100% right the first time. Not implying that you couldn't do it yourself, just reminding everyone that there's a big difference between a draft or a water leak into a car when it rains, and a water leak into a boat's hull.
As Stan says, a shaped of patch aluminum is probably the way to go unless the pieces of the original hull are still thich and can be bent back together tightly.
Excellent video Stu, you have such great skills. I found two other very good channels on UA-cam, one on welding (and tractor repairs) called chucke2009, and one on wooden boats by an outstanding shipwright called "Tips from a shipwright".
Great information Stu. One question though. For those of us who don't have access to a TIG welder, what about those aluminium brazing rods you can use with a torch for fixing cracks?
Any worries about the weld oxidizing faster than the surrounding metal? I ask, because one of my engine heads developed a hole into the cooling galleries, due to corrosion. My service shop is going to weld the hole & I'm worried the weld will corrode.
@@DangarMarine Dangar Marine Sir, many don't watch videos to the end, when I heard of this technique just brilliant when learning how to weld, by sharing knowledge I remember things better and help others, two birds one stone hey By the way, your channel found me when I saw 7k trawler, been hooked since Greetings from Lithuania
Hi Stu, I have recently discovered your fantastic videos and would firstly like to say thank for taking the time to produce them. Fantastic work! I was wondering if you could possibly answer a completely unrelated question for me and possibly give me some advise. I am in the process of looking for my first boat and am really excited about it all. I have been looking at 2006 - 2007 Quintrex Coast Runners and Bow Riders and am noticing that heaps of them that I am looking at have electrolysis on the gunnels and around the transom/engine mount. Some of them have had heaps and others very isolated patches. Most people I know that own boats and have decades of experience are warning me to stay away from any boat showing any sign of this. They say boats of around this age should not be displaying any form of electrolysis and that if they do, they are very unhealthy. What are your thoughts and advise on this as I really want to make sure that I don't buy something that turns out to be a big mistake and that I end up being really unhappy with? Any advice and tips on buying a second hand boat would be greatly appreciated :) Cheers, Shane
Depending on how much corrosion you have you can mig weld a plate over it after you have cleared all traces of corrosion but make sure you set up the mig welder to do aluminum
Good video, would have been more helpful if technical details added, for instance, boat made of 3mm alum, pedal used, 100A set on TIG, Balance 70% w/ AC Freq = 100Hz and type of filler used etc as others post. That would be helpful to some boaters, newbs in TIG welding. Other than that great as usual.
This was, by far, one of the best instructional videos I have ever seen. After watching and listening to you I feel I could begin to TIG tomorow. You didn't just tell us how, you told us why, and in terms and pictures easily understood. Best of all plain language. I think this a natural talent you don't know you have. It comes from having a curious mind and an impatience for answers. You would easily be a favorite instructor at a tech school. See you in the next one.
Thanks mate. You won't realise just how significant your kinds words have been at a critical moment. My relatively new video camera died on the weekend so I took it all the way into the city given it is still under warranty only to be given the expected story about using it near water etc etc. This experience on top of being sick with the flu at the moment made me think, "You know what, I'm over this." Then this afternoon I was at the hardware store with my wife when your comment popped up and after reading it I had a chat with her and we went straight a nearby shop to buy a new camera. It's amazing how far a few words can go to lifting people up again. :)
Now, you have made my day! I'm 67 years old and a machinist for nearly 40 years here in the USA. I have trained numerous budding machinists and found success useing the same techniques you do. So I recogognised, in you, a quality someone pointed out to me many years ago. Had you decided to chuck UA-cam we would have lost a true talent and comunicator here. I work on small outboards part time and that's how I found you. I look forward to your videos and their veriety.
I certainly hope you comment with some tips you've learned over your long career because I always saw this channel as being about sharing knowledge. I still have so much to learn too!
The episodes are great and I follow them as I can. One other thing that impressed me is the quality of the chat afterwards. A Lot of very decent men at their best. I dip my hat to Stu and the good and interesting men with advice or comments. Women should find this a good source of men at their best.
Thanks mate. It is great to hear all the helpful and constructive comments that people make on the videos. I learn a lot from them. :)
Man you should have been an instructor .. I have learned so much from you in the last year or two 👍👍👍👍👍👍👍 keep the great info and vids coming
Thanks mate, great to hear you've been gettings something out of the vids. :)
You sir being smart enough to hold up your hand to help us see what you're doing made me subscribe , learning lots from you . I appreciate you
Thanks for the sub!
Hard case I reckon, but I have watched tons of videos on welding aliminium and so far this little segment of yours has been the most practical. Love your videos man, keep them coming
Thanks mate, glad you liked it. :)
"The cause of some cracks may require additional bracing". Excellent advice I had not considered that applies to my repair. Thank you.
Really enjoyed this one Stu.TIG welding is some of the hardest welding to master. There’s lots to learn about setting up (choosing a tungsten and prepping it, cleaning metal) and then there’s the actual technique of laying the bead. You did a phenomenal job in explaining it all. I’m looking to build my aluminum welding skills up. This video will definitely be a big help!
The great thing about learning to weld is suddenly a whole world of new things you can make becomes open it you. You imagination starts to run wild! :)
The great thing about learning to weld is suddenly a whole world of new things you can make becomes open it you. You imagination starts to run wild! :)
So cool ! I am getting ready to practice Tig welding before welding my I/O hole shut on my aluminum boat ! I am going to put a outboard bracket on so i can fish longer in the cold months. I have learned sooo much from all your videos while doing my first boat ! now i have another project going . Thanks for taking the time to do these !! I wouldnt have a boat at all if I had to pay someone to work on my boats, so these vids help me to be able to actually have a boat !! Kudos.
Thanks mate. Good luck with your project. :)
Great video! Very helpful welding and repairing old dirty aluminum
Excellent instructional video. I know the very 'basics' of welding and have done a few decent jobs with a stick welder, but after watching this, I think I now have a little bit more confidence to give TIG welding a try. I plan on enrolling in a welder certification class thru our local school system's adult education program this winter, and now at least I'll have some understanding on how TIG works. Thank you and please do more videos like this one.
Thank Vin. TIG is a great skill to learn, you'll really enjoy the course.
Good video! One other tip is to hold your torch on the weld after you stop. There is post-flow that will cool the weld after you are done and prevent contamination.
Yep, definitely a good thing to do.
You are a pretty good welder my friend. Learned a lot from you today.
Thanks James, glad you got something out of the vid.
Great info. I have zero experience with any type of welding. Interesting side note: I read a hunting guide story several years ago that used boats to go up rivers to their hunting locations. Sometimes the boats would strike rocks in the river bed and leave a jagged rip. To fix holes temporarily, they would pack toilet wax rings and jam them in the hole.
Always enjoy the videos. Very entertaining, informative and satisfying
Thank you!
Another classic video Stu. Keep up the good work.
Thanks Paul!
Good to see your looking better stu
Thanks Peter!
You would be a good teacher mate. Thanks for the great video.
Thanks mate, glad you liked the vid. :)
Actually, I think he is a great teacher. He certainly leaves a lot of professional teachers in the dust .
Good tuition mate,keep up the good work.
Thanx so much, very good and helpful video!! Really helped me with all good explinations. So good!!
You're very welcome!
Excellent video very informative, thanks.
Cool instructional tig weld video. Use to do a little tig welding but mostly tack welds. Did allot of stick though
Hey Tim, I love doing stick welding. There is something about stick welding thick steel that is a lot of fun.
Great tutorial Stu.. learnt a lot from this and may need to borrow my old mans TIG welder for my old Quintrex (hull turns 50 this year) Also finally learnt what TIG actually stands for without Googling it :) Thanks mate
Thanks Mark, it's amazing how long these old hulls last for.
Excellent video makes it look easy almost like fusion welding metal with gas , your lucky to have all the tools to play with welds look ok to me a lot of modern tinnies have heaps of stitch welding my last boat the gunwales were all stitch welded in 3mm aly take care .
THanks mate. TIG welding is quite fun once you get the hang of it. It isn't that hard, just takes a bit of practice with scrap metal.
Great Video! Now all the Green Machine needs is a little paint. Thanks for sharing.
Thanks mate.
That's all he ever puts on it- a little bit of paint at a time!
Neatly done Stu. One thing with that can holder, make sure there is a plastic bucket to catch the lids under it. Steel, tin, copper (think 2cent pieces!) all react fairly rapidly with aluminium alloys used for marine work.. Drop a lid or two and you may be filing in some 3/4" holes soon after.but no matter what, alloy boats crack over time. Aluminium work hardens, so every wave hit is adding to the process. Take care and hope to see many more from you yet.
Thanks Ron. Couldn't agree more about making sure the caps don't end up in the bilge!
Another great video! Too bad the Green Machine is not around anymore.
great video. hardest thing is aluminum doesnt glow red (like steel) until you've blown a hole in it lol. a proper glass helps but a keen eye and the "feel" of the filler rod helps. having all the right equipment and supplies is a must. the conversation @15:00 is hilarious but true
Yes, and the fact that it doesn't glow when hot explains why I have so many burns from it! :(
Excellent work, you produce fantastic videos.
Thanks mate. :)
Great explanation!
Excellent video mate. Love the all-round maintenance knowledge you share; it has helped me feel more confident to have a go a these types of jobs! Happy to start diverting some money your way on Patrion mate. 👍👍👍
Thanks Matt. Really appreciate you becoming a Patron of Dangar Marine! :)
Great Video Stu, I learned a lot!
Thanks
Welcome Jay.
Nice work as always
Going on from my last comment you seemed to have picked uo a few skills one is the shell be right mate well just give it a go. Makes laugh sometimes. Overall very educative and informative.
Thanks for the video, I really like the way you explain.
You're welcome Sven. :)
very informative., Understand TIG much better now.
Great lessons in TIG welding for a tinny application. Now to comment on last week's video. I purposely waited for a week to pass so that I could check the comments regarding "Pimp My Tinny", and was somewhat surprised that only one other person noticed (and commented) that you slipped in a Stuart Allen original tune, (albeit just a short bit of it) in a spot where some music helped fill an audio gap while you were doing paint layers. Don't get me wrong, there are lots of great comments, I just thought maybe a few more of your viewers would have caught that song. I guess not everyone has checked out your music.
Thanks Stan. I've being getting back into music again lately. Hoping to record a few new songs soon. :)
I taught myself to weld aluminium recently and am by no means an expert but I thought I would share a couple of things I found - first if your tip is turning funny colours it could be you don't have a long enough post-gas cycle. The tungsten is still pretty hot for a long while and if you don't keep shielding it will discolour and make controlling the arc net time you light up harder. Secondly I had a lot of problems with leaks - the problem is if you have a a leak in your lines etc it lets air in and (in the worst case) it was 50/50 whether the aluminium would melt or catch fire! In other cases it would just take forever to puddle and then suddenly it would blow through. Good luck with it!
Well explained Stu. Cheers.........
Great video thanks for sharing
Thanks mate.
Great guide. Do one on MIG Aluminium welding without a spool gun. Cheers
I’ve learned a bunch from you in just one evening. Wow. Thanks. But, it could get expensive buying all this stuff.
Tools are an addictive and expensive habit! ;)
Great video thanks for sharing with us
You're welcome Mike. :)
Great video Stu. I'm a little later to the show. Have you tried aluminum brazing? I've had good luck wit it especially on old contaminated al. The advantage is you only have to heat the metal up to 380C or so and a propane torch will do the job. The disadvantages are cost of consumables and remelting joints the are close by.
Nice calendar. Thats one crack i would like to inspect further.But it defiantly would require a stick welder Peace .
LOL. :)
nice basic Tig welding, I prefer holding torch +-80deg and filler rod at 15deg from plate, no need to sharpen the tungsten with alluminium and no tungsten stickout is best. Pro welder DEW Marine Propeller Repairs.
You know so much stuff about so much stuff!
That's what happens when you get old. ;)
Dangar Marine 😂😂
i totaly agree whit all ya say but ya forgot to emhasyse the inportance of using the right filler material rod ,as there are many many different kinds of aluminium ,one needs to be aware that one is using the right material filler rod , i so enjoy your vids mate , greets from an belgian expat in the philippines
Yes, I did forget to talk about types of filler rod and type of aluminium. There is another vid in that!
If you don't have access to a tig drill holes like stu did to stop the crack continuing then look up how stu fixed holes in a boat without welding and plate inside aswell if possible, your car windscreen is held in with SIKA it is bloody strong stuff if surface is prepared properly even without rivets you don't need checker plate smooth ally will do
It is amazing stuff Sikaflex. With good surface preparation you can probably get away without rivets, you are right.
@@DangarMarine great videos stu keep up the good work 👍
Dangar Stu. Master of the autofocus
Filming welding is harder than I thought!
You’re the only person on UA-cam who can film a closeup I swear.
Excellent
Good job and God bless by the way
Great video on welding technique clarified TIG for me... also wouldn't mind seeing more calendar girl segues in your videos LOL
Thanks mate. :)
Try to pre heat your aluminum to around 200 that will help and have on yor bench a thick. metal top to absorb the heat because aluminum disperses heat very quickly
Yes, preheating can be a great way to go that's for sure.
"wasn't up to the job originally".. I love it, only lasted 40something years... :)
RichE San Diego, CA
Hi mate. I probably wasn't so clear about that. I think the Green Machine's split was caused by the accident which is fine to just weld up. It is other boats i see with multiple broken ribs just from being used in rough water that worry me. I see them get welded and break again soon afterwards.
Stu, I know of at least one class of ship in a navy that were 'retired' because the crack repairs were adding over $100k extra per dry docking. These ships lasted less than 10 years in service each but had a design life of 30 years. Originally dry docking was planned to be 5 yearly, it became an annual thig but not for anti foul/anode replacement, but full paint strip , crack check and repaint. The last one wasn't even anti fouled, just normal poly paint was applied. Actually, the last one wasn't even commissioned!
B R I L L I A N T
T I G ally demo‼️
I think I can I know I can 😍
Soo goood thx Stu!
Glad it helped!
Looks like there is daylight showing through the holes you drilled. What does the weld look like front the other side?
It's a little bit hard to see directly because they are low under the bench seats.
Have you done a video on proper paint work on boats as it applies to corrosion prevention and the importance of everything being grounded/connected?
No, not yet, but I do plan to.
that weld will eventually re-crack, where the weld had ended there is what is called a fish eye. that there will concentrate stress onto that area and will be the first point to go. presumably it had originally cracked due to a build up of stress in that point or an impurity in the original welding on the chine or even an impurity in the plate or a manufacturing error. without actually verifying there is full penetration on the other side and the fish eye has been filled in with more filler towards the end of the weld or sanded out, it is likely that spot well envelop a crack again.
Hi mate what was your work background before video series boat builder or otherwise,just curious.
IT consultant.
SO that's what ac balance knob does ?
Nice.
Just tripped over this one Stu - nice tutorial. I'd like to redo some welds on our little tinnie that were absolute butchery by the shop that did them. Now I've got some confidence watching you do it. I'm still slightly unclear on whether my first rig should be TIG or MIG. Thoughts?
As a general purpose welder MIG would be better. You need to have a wire spool gun though as aluminium is too soft to push all the way through the lead.
Do u have frequency or balance settings on your Tig? Thank you
How do you weld a big (several inch) hole from hitting a rock? Great detail as always.
Sounds like a patch would be in order. First of all, is the boat fibreglass or aluminum, this is important to know because obtaining the correct materials for the repair depends on knowing.... Okay, jokes aside, I'm sure you mean it's an aluminum boat. My 2 cents would be that you'd probably never get the hole sealed by merely trying to weld the shards back together, so I'd guess pounding the remaining skin back as flat as possible, then clean and prep the surface, as well as the mating surface of a patch to be welded/applied over the damaged area. Not sure whether your hole is in a relatively smooth, flat area of the skin, or whether it includes a fold/ridge/rib or God forbid, the keel. If you are new to TIG (or even welding itself), I would at least consult with an expert in aluminum welding in regards to what an adequate patch would be, and whether to apply it to the outer surface or the inside surface. Either way, after the patch is applied, I'd recommend some precision grinding of the very edges of the patch. If it's on the underside, making it more "smooth" to the surface helps with the dynamics while moving through the water. If it gets applied to the inside (less likely), you don't want a sharp surface for sensitive feet to find at some inopportune moment. A boat depends on seaworthiness. You can't always just pull over and call for a tow truck, so fixing a hole in the hull should be done with a serious approach. You really want it done 100% right the first time. Not implying that you couldn't do it yourself, just reminding everyone that there's a big difference between a draft or a water leak into a car when it rains, and a water leak into a boat's hull.
As Stan says, a shaped of patch aluminum is probably the way to go unless the pieces of the original hull are still thich and can be bent back together tightly.
Excellent video Stu, you have such great skills. I found two other very good channels on UA-cam, one on welding (and tractor repairs) called chucke2009, and one on wooden boats by an outstanding shipwright called "Tips from a shipwright".
Thanks Bob, yes, I like both those channels.
Great information Stu. One question though. For those of us who don't have access to a TIG welder, what about those aluminium brazing rods you can use with a torch for fixing cracks?
To be honest I've never really tried using them but I should experiment one day and see how well they work.
Any worries about the weld oxidizing faster than the surrounding metal? I ask, because one of my engine heads developed a hole into the cooling galleries, due to corrosion. My service shop is going to weld the hole & I'm worried the weld will corrode.
No, the filler rod is aluminium too so once the weld is complete and cooled there is no issue there.
@@DangarMarine Thanks man! You're awesome.
Ola desde españa soy seguidor tuyo aver si haces un video fabricando acoples morse fueraborda yamaha autolube 30cv gracias y un saludo
If you have to weld stress/impact caused crack
drill holes in the ends of it
it will prevent it cracking further
I was wondering why I show doing exactly that in this video.
@@DangarMarine Dangar Marine Sir, many don't watch videos to the end, when I heard of this technique just brilliant when learning how to weld, by sharing knowledge I remember things better and help others, two birds one stone hey
By the way, your channel found me when I saw 7k trawler, been hooked since
Greetings from Lithuania
Thanks mate, glad you've been enjoying the trawler vids. :)
Hi Stu, I have recently discovered your fantastic videos and would firstly like to say thank for taking the time to produce them. Fantastic work! I was wondering if you could possibly answer a completely unrelated question for me and possibly give me some advise. I am in the process of looking for my first boat and am really excited about it all. I have been looking at 2006 - 2007 Quintrex Coast Runners and Bow Riders and am noticing that heaps of them that I am looking at have electrolysis on the gunnels and around the transom/engine mount. Some of them have had heaps and others very isolated patches. Most people I know that own boats and have decades of experience are warning me to stay away from any boat showing any sign of this. They say boats of around this age should not be displaying any form of electrolysis and that if they do, they are very unhealthy. What are your thoughts and advise on this as I really want to make sure that I don't buy something that turns out to be a big mistake and that I end up being really unhappy with? Any advice and tips on buying a second hand boat would be greatly appreciated :) Cheers, Shane
Is the thickness of the aluminum in your boat .063 inches? I have leaking rivets and plan to aluminum braze them. What are your thoughts..thanks
Not sure how thick the Green Machine is. I would also consider products like Gluvit.
hey mate what's the best way to go about repairing electrolysis in a boat if i dont own a tig welder
Depending on how much corrosion you have you can mig weld a plate over it after you have cleared all traces of corrosion but make sure you set up the mig welder to do aluminum
Good video, would have been more helpful if technical details added, for instance, boat made of 3mm alum, pedal used, 100A set on TIG, Balance 70% w/ AC Freq = 100Hz and type of filler used etc as others post. That would be helpful to some boaters, newbs in TIG welding. Other than that great as usual.
Nice vid! StewE2009
My accent is a bit different. ;)
👍👍👍
Filler ROD ! LOL
What's your opinion on new mercury outboards. I have a 2016 Mercury 50hp on 1971 Glastron. Love the boat and the engine
The new EFI models seems to be quite good from what I've seen.
Be careful not to inhale the crack penetrant fumes...which can cause delusional behavior such as talking to calendars.
How dare you accuse my wife of being a calendar! ;)
Dangar Marine coopers pale is a good remedy for delusional behaviours.
Well you may not have a pedal but you do have have a Peddles....
He does make a good footrest. ;)