TIG WELDING a custom-designed 304 stainless steel exhaust pipe. Lifeboat Conversion Ep57 [4K]
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- เผยแพร่เมื่อ 19 ก.ย. 2024
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EPISODE 57
The new exhaust pipe needs to be built from scratch, as the sizing and engine setup is non-standard onboard Alan the lifeboat. I cannot weld, so have employed an expert to assist the construction. Then, the exhaust needs to be lagged, to improve performance and avoid excessive heat in the engine bay.
Products mentioned:
304 stainless steel pipe and joints (2" / 50.8mm)
12mm and 8mm glassfibre braid rope
20mm-wide 200gsm glassfibre cloth
Aerotight stainless steel nuts
Exhaust-safe aluminium/glassfibre foil tape (radiant 400degC / direct 100degC)
Model: NME A/S (Husnes, Norway) 7.5m TELB
Engine: Bukh DV48 turbo diesel
Feel free to ask any questions in the comments!
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In case someone wants to criticize those welds, I want to point out that the smaller the diameter of the pipe, the more difficult the welds become. Anyone who has welded pipe or boiler tubes will tell you about it.
As a boiler operator I agree with Brian.
As someone that sometimes builds (stainless) exhausts/manifolds for hobby or semi professional purposes, I strongly disagree. The guy can tigweld, that's for sure, and is probably better at it than many. But there is no backing gas used - the tubes are open to atmosphere and no flow of shielding gas is introduced, the welds are burned (darkly discolored) because of slow speed and high current and lack of cover of shielding gas. I find it a waste of expensive materials to not do it the right way. I'm not talking about the lack of pretty rainbow colors here, just tig welding of stainless steel basics. The welds aren't very uniform either. Plenty of good examples to be found on YT on how it can be done much better. Will it hold? Sure. Is this best practice and will it prevent cracks? Only time will tell.
As someone who welds daily... those welds arent pretty but they are fine, i was surprised he wasnt backflowing gas to the inside of the pipe
"Weldy Guy", this is a good reason for Guilds to be brought back.
After that term wound someone up a few episodes back, it clearly become mandatory thereafter.
I generally find that people understating their job description are most impressive. Those who artificially pomp them up, less so.
You didn't mess up with the bracket. You just showed another way to install it. I enjoy your videos. Can't wait to see Alan finished and at sea.
Plenty of sparks from the grinder, good episode
A great and funny episode. I started to watch this build because of its uniqueness on yt. Stayed for the unique build and the humor.
wow! another awesome video from hibbert! i find his videos very entertaining and extremely informative. original content of this high a quality is good to find. keep up the good work alex! i sat through 4 minutes of ads to help with the welding bill!
I applaud your ad tolerance.
Don't forget some Copaslip on those turbo nuts when you do the final assembly. Will help keep the nuts removable in future and stop them galling if stainless.
Check out the previous Alan episode for all manner of copper grease wonderment.
No bubbles no troubles!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Thanks for pointing out the top one was the new exhaust! I was very confused 🤣
An excellent and professional job by all involved.
"The new one is at the top", priceless 🤣🤣🤣🤣🤣
You can also leak test exhausts by getting someone on the outside with a cloth to muffle the exhaust exit. That way you actually get overpressure on the tube and you'll spot leaks easier.
Yes. That’s a useful and typical recommendation.
As always a great video, I am so glad I found your channel.
Cheers
Since the tail end of the exhaust is mounted solid, a second bendy bit would help at the other end should any welds every fail.
Ah yes, weldy boi. I have tampered in being a weldy boi at my job, and have received a sunburn on both arms due to the bright lights and the protective sleeves slipping and exposing bare skin. You most certainly would want to get yourself a suitable welding mask if you wish to watch a weldy boi do their work.
AMAZINGNES!!!
Nice job on the exhaust Alex, surely that was a zinc anode rather than aluminium? Lucky the boat yard has a weldy guy!
Zinc has a melting point too low for an exhaust. Some people will criticise an anode in any case, but I went with Alu for the fun factor.
Excellent job👍, that's the first thing I would say, however🤔, add a fixing to mount on a silent block on the silencer, to avoid vibrations, it will protect the hull and Alan's turbo, there are external flanges...😁
PS: Good job!!!
Cheers - will have a look
Too bad the thermal protection is already on, otherwise you could have put a copper coil on the pipe to make an exchanger, for an extra heater or a water heater for tea...
TIG
Came to say the same thing.
Sorry - long week. I even double-checked before typing. Corrected.
Regardless of any possible criticisms you may get, I can assure you that there were no drastic faults with your efforts. And yes, I have had a full and complete career of an "industrial service technician" experience/employment.
Well done!
Yay
With that helmet I'd say that is STIG welding 😁
Excellent
Being a former owner of a boat with a Bukh enginge, and having done a boat trip with the former Dutch Bukh guru (who was as complicated and useless as the engines are), I can only feel sorry for someone attaching shiny jewellery to a dying corpse.
I like the lagging rope, I used just glassfibre tape and it is a bit thin. Where did you get the rope from?
TIG is a great skill to pick up and not too difficult. I bought a 210ext Rtech AC/DC last year to do aluminium and stainless and it has been expensive (£1500 with gas), but I have been amazed at how easy and fun aluminium is (I don’t usually use the word fun to describe work). The other comments on back purging TIG pipe are kind of correct, but in reality it’s not got a nuclear reactor in there (well I assume you do not have a cat and some dastardly plan involving the artic). My stainless exhausts on my boat are at 15 years old now since I MiG welded them with argon/CO2 and they are fine.
I got the rope from a chimney and stove company, but it's generally easily available online.
I hate to be that guy but that’s tig not mig welding keep up the great work
Ha ha! Beat me to it!!!
Sorry - long week. I even double-checked before typing. Corrected.
I thought this episode could only get better too,
sadly, I was disappointed. 😢
🤣 just kidding 👌
great looking silver snake. 👍👍
Trust your dad
I was a naval engineer in the US Navy, my UK counterparts are as good as us.
Ever considered a career in psychology ???. Place a couch in Allen post adventures. You have the bedside manner, tone, and dry wit, it would be hilarious as a future you tube channel.
I'd get sacked within minutes.
@@AlexHibbertOriginals Just think of the fun You could have, until You got fired.....imagine telling people the truth?
Bit of an echo on the VO? maybe you're just sat in a big room, probably quite a fancy one too.
Hearing it too. The echo is to short, loud, and sharp to be a natural reverberation. Probably accidentally playing back the VO twice somehow with one of them being delayed slightly.
I've not changed the process - SM7B, two pop filters, proximate speaking distance, and a slight low end boost in EQ.
@@AlexHibbertOriginals Did you by any chance make a video recording of the VO as well? If so maybe double check to make sure that video has it's sound muted, assuming the video is in the timeline.
There is definitely a change in the VO. Sounds like a very short (few milliseconds) delay but could be a phasing thing as well.
@@pashimp or TH-cam compression algorithm messing with the audio.
@@greylocke100 No, that's not what's happening this time. :)
Compression artifacts would not be isolated to the VO and would also sound different. Both phasing/delay and compression can cause loss of bass though you could mistake them that way.
This is the second time you gave me almost a heart-attack in two consecutive videos.
That beep at 9:02 sounds quite similar to my smoke alarm.
Maybe by the third time my body learned the difference and I won't shoot up from my bed with a pulse of 180 :(
😂
Ah - it's Alan's low oil pressure alarm.
@@AlexHibbertOriginals so Alan and I are both screaming in agony together.
That's comforting 😂
How about noise level inside of Alen? I must admit that I thought you would add a second muffler.
Have you considered integrating some kind of heat exchanger to use the exhaust stream to heat the cabin, unless you intend to use engine coolant for this purpose.
Interesting concept. Is that a thing, using exhausts as a heat source? Certainly a lot of free energy (heat) there. I guess on a larger boat you could more easily adapt the exhaust to be used this way but with Alan’s engine sitting pretty in the small volume of the boat there should be more than enough heat to keep things cosy.
@@teeanahera8949
Dehumidify is worthy of a thought...
@@teeanahera8949 it's a thing for sure, most boats liquid cool their exhaust and dump it overboard. Integrating another exchanger into a closed loop glycol system could extract that heat to be stored in a simple hot water buffer tank.
I'm still hooked to Alans progress,
but would it really have happened in time for his original voyage / intention? It seem now that you have time to fart around.
We had four people working on the project back in 2019/20, and we had proper funding. Also, I prioritised work more brutally then. I'm trying to really enhance Alan as a multi-project boat now.
Here's to farting around!
There's something slightly off with the voiceover on this one. Like a slight echo or slightly tinny sound.
You're not the first to say this. Weirdly, it sounds fine/normal my end, and I've checked there wasn't an accidental double-track.
Man I wish I knew how to weld ffs.