Valentine Suspension Overhaul | Ep. 16 | Tank Workshop Diaries | The Tank Museum
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- เผยแพร่เมื่อ 3 ต.ค. 2024
- Enjoy watching this week's content on the Valentine Suspension with Museum Workshop Projects Manager Jonathon Kneebone. Let him walk you through a suspension overhaul of Valentine and details the challenges the team faced.
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I never want a tank diary vid to end and when it does I’m always left wondering. Thank you all for your work on these!
I echo those who say the "Tank Workshop Diaries" are favorites. Nothing against the Davids and other presenters, but I especially like seeing the work and cleverness that goes into these restorations.
I love the level of detail these 'Workshop Diaries' go into. That is the stuff I want to see. Thank you!
Casually turning up a shock piston...
I can see how being able to 3D print obsolete pattern seals on demand would be a total game changer!
I suspect some of the reason the museum pays so much for seals is that they want to deal only with 'reputable companies' so they can protect themselves against some forms of liability that come with hiring parts from an amateur. A simple rubber sealing-cap can be very cheap and simple to make if you just mill one on your garage lathe, but if you get one molded by a professional company, then that company has to guarantee the product, have proper documentation, and other things that the tax authorities likes to see when a charity like the Museum claims it is spending its money for legitimate purposes. Last thing you want is Bovington being stripped of its status because someone claimed the Museum hiring a random guy with a lathe to make seals on the cheap in his basement had acquired the job by being a personal friend of Fletcher or something like that. These are the sort of problems you can encounter when you live in a highly-regulated state; the cheap option is not always the legally-safe option.
@@genericpersonx333 on the other hand that’s how the Bletchley Park bombe reconstruction was built, so there are ways to do this sort of thing. But I don’t think the OP mentioned hobbyists or amateurs doing the work, just the use of 3D printing to make parts instead of having to make dies or moulds. Much cheaper, assuming you can actually 3D print elastomer seals.
3D printing is truly a game changer! I work on obscure bikes and cars a lot and sourcing parts is next to impossible, but with 3D printing I can either just print the replacement or create tool to make the replacement part.
10 years ago I would have to work with mechanics shop [that specializes in prototyping] from the ground up, which is very expensive (1500€ for 3€ part at times), now I can just either print it myself or rent time on industrial metal printer. Some parts still can't be printed but being able to print others offsets the cost in a major way.
Absolutely amazing! As a retired heavy equipment maintenance mechanic I am in awe of the level of skill (especially your lathe operator) and expertise everyone at the museum demonstrates. I only wish I lived on your side of the Atlantic. I would definitely volunteer. Bravo, Gentlemen!
Not all heroes wear capes. Some work wrenches and run lathes! ;-)
FYI, "Tufnol" is a phenolic resin composite with either paper or fabric as reinforcement. It is about the same as "Micarta" or "Formica" is in the States.
Bakelite is phenolic resin, usually with wood dust added.
Excellent, was looking for clarification as I have never heard of Tufnol before. Thanks
New Zealand represent!!! Very proud. And Jacob on the lathe.....you're a legend.
These Workshop Diaries are fantastic. Keep up the great work!
Nice to hear about the networking of restoration tips from parts afar.
Thanks for continuing to film even with covid
When you guys are finished with this Valentine, the old girl will be able to dance again! Wonderful work absolutely wonderful!
As a " All things mechanical" junkie , I really appreciate these Workshop Diaries episodes !!!! Great work!
......these are great video's thank you very much Bovington Tank Museum! I'm splitting hairs here, but I would have liked some footage of the spring compressor machine being used (...that you guys fabricated).
That's what I like about living in New Zealand....we are almost always so pleased to help a good cause! We aren't perfect, but we have a lot of Sterling qualities.
Good to see a young lad doing amazing work to keep our history moving!!! Good effort to Jacob!!!
Nice to see you guys back one of the museums best videos i really really enjoy watching!!!
Excellent as always, and the presenter does a great job......
These vids are my favourite ones coming out the of the museum. Fascinating stuff.
Fantastic Work Gent's!!
I remember clambering over a Valentine in a Public park in NZ in the 1970's that was a static display... unfortunately for me it was summer and my god was it a sizzling experience..
R.E.M.E - real engineering made easy by this fantastic team. Clearly walked and talked through and a joy to watch. Takes you back to a time when British engineering of this standard was more readily available in a hands on nation not wedded to finance and insurance. Well done, a joy. ☺️
Thought it stood for rough engineering made easy😀
It was a play on it.
That is excellent craftmanship. Well done.
Great to see these restorations. It's a lesson on just how many precision components were required to be manufactured for what at first seems a fairly simple piece of engineering - gives real meaning to the old phrase about "war effort" when you think of the thousands of specialised parts being produced long before CNC was thought of.
Hooray! for you guys keeping it going. These are my favorite YT vids. If I were to ask for anything, maybe even more detail? To be fair, critical detail is almost never lacking. So let's leave it at, Hooray!
Jonathan does a great job at presenting and explaining 👍
I find these fascinating. Love seeing old part etc. refurbished and the sill needed to do it
I like the self filmed footage. Gives it a more down to earth feel. With a small expense for some gopros or similar you could continue in this style.
There was a Valentine with the Russians at the fall of the Reichstag.
One of the 1300 received by the Russians via lend lease, interested to think it had come all that way potentially from Vickers in 1940, through all the Russias to the heart of Germany/
An example Valentine is on display in Hall 8 of the Patriot Museum Complex. Park Patriot, Kubinka, Moscow Oblast, Russia
Those tanks were built in Canada not by Vickers:
The first tank produced in Canada was the Valentine, built by the Canadian Pacific Railway’s Angus Shop in Montreal from 1941 to 1943. Production continued until early 1944. Most of the 1420 Canadian-built Valentines were shipped to the USSR for use on the Eastern Front, with only 30 being retained for training purposes.
@@bradyelich2745 theyy came from Britain as well, the numbers get a bit gooey
''With 8,275 built, the Valentine tank was the most numerous British tank of World War II. Canadian and British factories shipped nearly half (3,782) to the the Eastern Front for service with the Red Army''
medium.com/angry-planet/to-russia-with-love-76a2e4ca6c46
@@z_actual OK. That means 2482 were sunk or stolen.
Yeah we all watched that video...
@@bradyelich2745 I guess it does ..
unless you think someone else was parking them
Impressive. Apparently, The Valentine was one of the few 'lend lease' tanks that the Soviets liked. It's low profile and it's HV 57mm gun could do a job against most German AFVs they were likely to come across.
One Soviet tank unit managed to keep one going long enough to fight in Berlin.
@@Davey-Boyd nice
Keep in mind that whether an item was officially, "liked", or, "not liked", was heavily influenced by politics. The Soviet government disapproved of too much value being put on lend-lease aid because that would detract from the Communist Party's own claims for credit in defeating the fascists. Even statements and reports from the front lines went past the eyes of the political officer before they got to Moscow.
Not just to Berlin, I believe it survived the fight at the reichstag too.
The best sources we have are the secret Soviet reports directly to the Lend-Lease suppliers, where the Soviets explained what they liked or disliked about equipment being sent and what equipment they would like more or less of. The important thing to note is that the Soviets qualified their assessments based on their own doctrine, so most everything had its flaws, but most things also had their virtues. Nothing was really "liked" so much as just considered less flawed or more virtuous according to their own expectations. Put another way, Soviets tended to judge everything by how well it could substitute for a Soviet system without requiring changes to tactics or application.
For example, 6-pounder Valentines were measured against T34, the tank it would likely substitute for. Valentine holds up because its weaknesses could be compensated for, despite having no real strengths. Its gun and armor were comparable. However, Valentine had a terrible flaw, its slow speed, which meant that it couldn't replace T34 for long-range offensive operations. However, Soviet doctrine was built on attack in echelon, so there was one important mission where Valentine could be useful: the first wave of the offensive where range was less important than survivability. You didn't need to go 200 km, just 20 km through heavy defenses, and Valentine was adequate for that role. Thus, Valentine with 6-pounder was spoken of with faint praise. It could replace T34 for important missions enough to justify their continued use. 40mm-armed tanks didn't get the same praise because lack of HE firepower and ranged penetration limited their ability to substitute for any Soviet front-line tank, even as a first-wave damage-sponge, and so they politely requested the British not send more of those once they had better guns to send.
Excellent work and detailing, well described and implemented.
these diaries are great, very interesting videos, keep them coming!
Fascinating. Lots of work but so interesting. Great job and good video work too.
Wow i've watched several tank chats but this is the first of the diaries i've seen. Fascinating stuff and exactly what i was looking for from the channel!
Search out the other ones, they are brilliant.
Jonathon, I heard you tell about the issues for elastomer gaskets and the cost for tooling. There is a company called Freudenberg Express that can offer machined parts in any available elastomer (so NBR and even urethane). It aint'cheap but at low quantities might make sense as you don't have to invest in the tooling.
Thank-you!! Very interesting and educational.
More please.
Nice vid JK...good seeing an old tankie keeping his hands in!
Fascinating stuff this. Do more!
Fantastic engineering 👍
WHAT A CLEVER GUY HE WONT BE AN APPRENTICE VERY LONG JUST WHATS NEEDED KEEP HIM ON A TIGHT LEAD .
Excellent work 👍
Those huge preloaded springs are terrifying.
This was fascinating to watch!
Wow.......great job !!!!
Can’t wait get back there. Hi from Australia.
Gosh what a job to do on this suspension. Apparently simple it was built with lots of moving/rotating parts but seems to be quite reliable although needed some maintenance to do every scheduled miles. I can presume that in the desert it was more frequent....
Great program
GREAT to see thank you for the video. :)
This stuff is so cool.
Quality work
I love these videos.
Important knowledge
Thanks + never knew you could get a Speedy Sleeve to fit on a tank (I use them on my 1969 car).
No doubt the activity we don't see is the extensive documentation behind the scenes so our great-grandchildren children will be able to overhaul this Valentine. 🤞🙂
just love these videos :)
Hey. You should be using a brass wire wheel.on a drill or die grinder to clean those bolt threads. It will clean it completely with 10%of the elbow grease required.
Gentleman, brilliant effort by all & NZ. Thank you. May we have more like this please.
Love these vids
Brilliant, thanks. Proper engineering. You can almost smell the cutting fluid!
fantastic work lads! Always a joy, these diaries. Really surprised at the complexity in design of this suspension though. You'd imagine a wartime vehicle would have even simpler suspension than my medieval land rover
It's funny because the Valentine looks such a small tank but those trailing arms look huge when on the floor next to a person.
Very clear, informative, and interesting. The fact that your team spends the time and effort to then give us a little insight into the time and effort you have to spend on literally everything is truly illuminating. Thank you for the dedication and amazing work!
That's some amazing work.
Amazing. The dedication is inspiring.
LETS HAVE MORE OF THESE THANK YOUS 😊.
Really love the Workshop Diaries!
Thanks for making my Friday.
I have seen oil seals reproduced, machined from polyurethane bar, using tool bits sharpened like knives. It's even common to see PU moulded seals finished off in a lathe with a knife.
Simply brilliant!
Thank you!
I work on old American equipment. Many times I have matched seals and bearings by dimensions at a dealer in a nearby city. They probably have catalogs on line by now. Good Luck, Rick
Good thing you signed your comment. They probably would've figured out it was you if you didn't.
I love these episodes. Keep up the good work guys.
The workshop diaries are my favorite videos from The Tank Museum. 16 minutes of pure fascination. Well done. Here is the video Johnathon mentions (I think): th-cam.com/video/gkYpIzBqG6w/w-d-xo.html
The skill knowledge and effort of you guys is most impressive "Arte et Marte".
Thanks for showing this. I never got how this suspension actually worked, because even on diagrams you cant see the pivoting part for the two smaller wheels. Now I know its basically the same as the Italian L33/3, but with a coil spring instead of a leaf spring.
Amazing video, thank You!!
I'm a mechanic/maintenance/jack of all trades/wanting a new job. Where's the application? I love seeing old machining and bearing assemblies because a guy with a slide rule worked all of this out 70+ years ago. The engineers back then did wonders mechanically and seemed to be more in touch with reality versus our computer/electronic dependent modern ones.
It's interesting how little space is left inside the vehicle once the wheels are off. It's tiny. The turret is so small as well.
On old machines we call that sleeve "a rattling good fit". I like your lathe BTW
Excellent 👍🏼
Excellent. As an engineer I really like technical videos. More please with more detail
Fantastic video once again and it's good to see a young lad learning a trade in the old apprentice way and picking up skills from the experienced hands around him.
Is Jacob one of the apprentices part funded by the Patreon members?
Look into dry ice blasting. It is expensive but doesn't damage as you blast. No risk of destroying a delicate piece of metal. You can also blast plastic and rubber with dry ice.
They’d be happy except a donation of such equipment. They r a museum.
oldschool Spring compressors arent called widow makers as a joke.
Once you understand the amount of skilled work required the restore just the suspension elements of one historic tank, and then bare in mind the sheer size of Bovington's AFV vast collection coupled with the museum's financial situation, then one is forced into the sad realisation that most of the collection are destined to remain static exhibits forever alas.
the spring pack is just a oversized strut assembly im surprised it isnt in semis by now
Fantastic work. I do enjoy these videos. Have you ever tried an inductive heater to help remove some of the rusted nuts and bolts.
Could you use liquid polyurethane to cast new bushings? Or is that simply not practical?🤔
Id i thought the nitrogen suspension we work on was complicated 😕
Not actually suspension, but I've always wondered if the Manganese track treads were difficult or costly to source and replace?
Is there a particular reason why you dont use common shaft sealing rings?
You can have the seals 3D printed.
Bearings, seals, spacers, so many small parts as opposed to the Russian design of "just make it good enough, it's going to get destroyed anyway..."
As Ex REME/Civi professional I so want to be their with you
The workshop diaries are second only to David Fletcher's videos for me & that's by a tiny margin.
Wait. He custom machined a sleeve for the axle to carry the bearing?
Bloody Nora.
9:00 if you can make tiny measurements consistently and know how to machine you can make anything.
1:00 I'm curious, what's the part number for that bearing
Tank Museum overalls seem to be lacking in the shop. Found the coverall for tiddlers but most of us aren't teeny tiny any more. Take care all :)
suspension of theseus.
Lads who designed this suspension must have later worked for Audi. Endless control arms and pivot points in 1990s/2000s models.
So, is that Theseus's suspension?
🙏👍