Making the Piston & Reassembly! | Hitachi ZX470 Cylinder Rebuild | Part 3

The Hitachi ZX470 Cylinder rebuild is complete! This video is Part 3 of rebuilding a stick (dipper arm) cylinder off a Hitachi ZX470 excavator. In this video we show the complete process of making a new hydraulic cylinder piston including modifying with a silicon bronze weld layer before reassembling the cylinder. We also show pressing in the new bushings with our 150-tonne hydraulic press, installing the new seal kit and painting the rebuilt cylinder. We hope you enjoyed watching the videos on how we complete a hydraulic cylinder rebuild!
MISSED PART 1?! Watch it here: • It's STUCK! Can We Get...
MISSED PART 2?! Watch it here: • Making the NEW Cylinde...
In this video we are using:
- Hafco TM-26120G Centre Lathe
- MetalMaster HPM-150T Hydraulic press
- WIA 500i Weldmatic welder
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Our channel is all about showing you real life machining work from our workshop on the Gold Coast Australia. We specialize in manual machining, hydraulic repairs and heavy fabrication for the earth moving, mining and civil construction industries. So if you're a machinist that wants to see some big gear in action be sure to subscribe to our channel right now. We upload new videos every week that show lathe machining, milling, welding and all the good stuff that comes from a machining workshop. If that sounds like something that you would enjoy seeing, then make sure to join us by subscribing!
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[@CuttingEdgeEngineering]

The Hitachi ZX470 cylinder rebuild is complete! Let us know in the comments what your favourite part of the rebuild was and if you missed watching Part 1 or 2 check those out here 😁👇 Watch Part 1: kzbin.info/www/bejne/gouwg4djhKuobq8 Watch Part 2: kzbin.info/www/bejne/n5i4goyOrsSjjqc Subscribe and hit the bell icon to turn on notifications so you don't miss our weekly uploads. 👇 🤳 📲Follow us online here: linktr.ee/CEEAUS 🛍Official CEE Merch shop: www.ceeshop.com.au 🎉Get Early Access & Ad Free videos in our Patreon community: www.patreon.com/cuttingedgeengineering

[@ypaulbrown]

wonderful video tonight..... .have a wonderful weekend Kurtis, Karen and Homeless...... cheers from the other 'Sunshine State' Paul

[@bagerandtager]

Homeless ripping up parcels 🤣

[@Murphyslawfarm]

Kurtis and Karen you two are amazing what you have done for Matty 👍

[@dominicvallez6176]

I think for me the intros into how a machine works is always cool to watch, such as when Kurtis shows us how the welder works. Thanks for the knowledge!!!

[@davidhall1779]

id have to say my favourite parts of this build was when you polished the rod and when you left to get you’re mate to torque your nut LOL. brought a tear to an old mans eye it did.

[@davep800]

I've been watching every one, every minute, no skipping, for almost 3 years. These never get old. Still enjoy them immensely.

[@CuttingEdgeEngineering]

wow what a fantastic comment to read, we can't say how much we appreciate supporters like yourself that have been with us for so long!

[@lazww]

@@CuttingEdgeEngineering I feel like I have only been doing this for the last few months. Whenever there seems to be nothing interesting to watch I delve into the back catalogue. There is at least once a week I will introduce something out of your workflow and make my job easier / the end result better. I borrowed the earplug trick from the boys in the paint yard a few years ago such a game changer during masking up jobs. Exemplary work as always!

[@lazww]

I am the same nearly 53 minutes just melted away his retention stats must be off the chart!

[@samrodian919]

Me too, I can't get enough!

[@marteneqdt]

No skipping required, brilliant editing. That's what makes cee stand out.

[@Horus9339]

'These two are malfunctioning'... That done me in. Thank you Karen, you really have a cracking sense of humour. A great series of videos again guys, people will soon start to believe you are professionals or something. Have a great weekend. WOOF to Homie.

[@macedindu829]

I don't know whether anyone else appreciates it, but I find the bird bits fascinating. It's remarkable how intelligent they are.

[@jenksify]

Kurtis's depth of knowledge shows why his business is so successful. I love how Karen will go to so many different extremes to get us the best shot of the work.

[@firstmkb]

Not just his depth of knowledge, but they both work very hard and have high standards.

[@jenksify]

@@firstmkb Extremely high standards and work ethics.

[@assessor1276]

I am a mechanical engineer in Canada and for the last 43 years, I’ve lived and worked all over the world. I have had a lot of fun, learned a lot and done well financially, but I often think that I could have had just as much fun doing the kind of work that Kurtis does - and watching these superb videos confirms that.

[@passenger6735]

The silicon bronze filled seal grooves looked amazing. That's a quality part and the customer will have an exchange process taking hours instead of days. What a brilliant service!

[@KHWindham]

I am a 30 year Submarine veteran. Coffee was my life. But when I can hold a cup while watching your videos and it gets cold-the videos have just enraptured me.

[@CuttingEdgeEngineering]

Wow now that's a compliment right there thank you

[@LordViktor299]

Always neat to find another sub guy in the wild. Also, coffee is life and likewise mine went cold watching this work of art.

[@asw19B100]

Didn’t get my second cup till noon because this video was so off the charts well done!

[@aaaooaao9949]

great words - which I would like to agree

[@barrygrant2907]

Homey is such a well-behaved dog, even when he gets a little rambunctious. That shot of the boring head coming through the inside of the piston was exceptional! Great video.

[@johnmorriss5308]

Reminded me instantly of the shots of a Tunnel Boring Machine making breakthrough.

[@twasbrilligandthesli]

I was going to make the exact same comments! 👍🏻👍🏻👍🏻👍🏻👍🏻👍🏻👍🏻@@johnmorriss5308

[@qfw181]

Karen that fade during the paint was "Chef's Kiss"... the fact that it isn't needed but adds SO MUCH depth to these videos is superb. I badly want to see the tool that tightened that nut.

[@Moorey1986]

Have a google of "hydraulic torque wrench (square drive or cassette)". through a series of calculations, you set the pressure to a specific value for the required torque figure. one hell of a piece of kit! until the reaction arm slips and sends the whole thing at a great rate of knots in a random direction hahaha

[@robertlangley258]

I swear I never get tired or bored watching you build anything you need sir. I was in a zone on all three episodes. I live on a fixed income and alone so I don't have any money left at the end of the month or I would send you some money son. But I can ask God to provide, protect and to bless you the wife and your families, which I will do. Thank you for your videos, your wife is amazing at videoing your repairs and builds she's irreplaceable. You are a very fine professional machinists in my book. 🙏🙏🙏

[@dandeeteeyem2170]

That shot of the massive boring bar, roughing out and coming through the other side of the piston was pure art.. Kurtis has all the big boy tools 😮

[@Joachim2012]

That's exactly what I was thinking!

[@raindeergames6104]

You meen the spade drill?

[@simonilett998]

​@@raindeergames6104*mean*🙂

[@raindeergames6104]

@@simonilett998 engrlish is hard😁

[@dwjr5129]

Well, as the saying goes, “the only difference between men and boys is the price of their toys”!

[@danielcarter305]

I can't believe how easy Curtis makes, producing a pision look.

[@paulmeersa7162]

Well, it is easy, just lots of steps...

[@fw1421]

I’m sure he’s made many of them over the years. I can’t remember when I started watching this channel. The KZbin Gods just put it on my list and I was hooked,just like the watchmaking videos.

[@Watchyn_Yarwood]

He is a true professional in every sense of the word.

[@robertrawlings]

I must say Karen your editing skills are nothing but amazing, camera work superb , Kurtis just keep doing what you do its the very best well done you two :)

[@CuttingEdgeEngineering]

Thanks so much Robert!

[@BruceBoschek]

Putting those silicon bronze shoulders on the walls of those grooves was not just genius, it was a work of art! Enjoyed every minute of the video, as always. That cylinder really does look brand new. Thanks to you both and greetings from the Boschek gang in Germany. Have a pleasant and peaceful weekend.

[@CuttingEdgeEngineering]

Hey Bruce, we'd love to send you a little something! Can you please send us your Name and Shipping Address to [e-mail] Cheers mate!

[@IndependenceIron]

I enjoyed the way he goes that extra mile with features like tthe Si Bronze shoulders that take it above and beyond an OE quality repair! Excellent craftsmanship!

[@brianhaygood183]

Oh yes, another majestic bin chicken. That always cracks me up.

[@Greybeardmedic]

I love how Karen magically sandblasted those parts for you! It must be nice having a magician around in your shop. 😊Nicely done Karen!

[@firstmkb]

I thought that thing too, but at the same time wanted to watch the parts get clean. That sense of satisfaction at watching something get instantly clean (a little piece at a time) is why my wife always volunteers to use our pressure washer on the house or sidewalk.

[@Raeilgunne]

I'm reminded of Hand Tool Rescue every time I see a sand blaster now. The face slam against the glass speaks to me.

[@K4Fusion]

Kurtis, that's a pretty slick idea to incorporate the 2 silicon bronze wear bands into the cylinder rod. I like how you improve upon factory original components. I used to do the very same sorts of things as an industrial machine technician. 👍

[@cyrilhudak4568]

My curiosity begs the question if this was an original idea, a borrowed idea or a collaborative idea? Wherever it came from, it was a brilliant solution to very real problem.

[@small-china]

@@cyrilhudak4568 Everything is new, well-forgotten old. Russian proverb (c)

[@brandonh5336]

It's a borrowed idea. John Deere/Hitachi and Case/Linkbelt both do it on a lot of their excavator cylinders but not on all of them. Cat doesn't do it on their pistons that have the same seal and wear ring arrangement. Really it shouldn't be an issue. The only time I have seen this particular failure on an excavator was when a customer bought a reman cylinder from a John Deere dealer. It was rebuilt with wear rings that were too thin of cross section and didn't stick up past the lands (don't know how they accomplished that).

[@clydebalcom3679]

How cool is this? It's such a small modification, but it solves a potentially major issue. One thing that I really enjoy are these multi part rehab videos. I like the suspense and the level of detail.

[@CuttingEdgeEngineering]

cheers mate thanks for the feedback

[@Hyratel]

it's a nontrivial amount of work that will pay dividends in longevity for the piston for sure

[@dalefortner2179]

The weld in the middle is above and beyond. What a true professional who is dedicated to his craft. Bravo, my man 👏👏👏

[@ptv1250]

I have to tell you, the thing that I appreciate most about Kurtis is his willingness to take the time and explain why he does or doesn’t do things a certain way I’ve been a machinist for over thirty years….I’ve spent twenty six of those years running my own company producing forging dies for automotive and oil & gas industry. Every time I watch a CEE episode, I learn something new…..always great work Kurtis!

[@Buciasda33]

You should write "Upgraded by Cutting Edge Engineering" on it. The fact that you make it better than the manufacturer is amazing.

[@MattysWorkshop]

Gday Kurtis and Karen, this was an awesome series of videos, the modification to the piston is a brilliant idea and another bonus to rebuilding these cylinders is there’s minimal downtime for the customer, brilliant job as always and have a great weekend, cheers

[@CuttingEdgeEngineering]

Hey Matty, thanks for commenting that we forgot to mention about the fast turnaround time with an exchange component, definitely a bonus for the customer. Hope you're feeling alright today 😄👍

[@iangriffiths9840]

Excellent watch, as always. Kurtis engineering skills, Karen with the filming and editing, the human touch with Homie and the birds and the patience whilst Kurtis tries to work out what he is going to say. Way to go guys!!!

[@johnnyhomegrownholmgren9999]

Here I am, in a horisontal position onto my sofa, watching someone fixing other people’s broken shit on the other side of this gigant clayball.... And enjoying every single second of it! 👍 Keep up the great work you are doing! Thank you for the videos Kurtis and Karen. Best wishes from Sweden! 🇸🇪

[@Albertjonas]

I must say these 3 episodes were definitly my favorites ones where you restore a piece to a new piece! Have a great day Kurtis and Karen! =)

[@ninjapancakes9435]

That gradient transition with the gray to orange paint... *chefs kiss* beautiful.

[@dickensider6049]

Not only did you refurbish that cylinder back to OEM standards but you actually improved on it with adding the silicone bronze. That piston looked like a piece of jewelry after you were done with machining it. Excellent video as well. You Karen and Homey produce top notch content that is absolutely enthralling. Who would’ve thought a finance guy like me would ever find your mastery of machining so appealing. Wish I was a younger so I could’ve perhaps considered it as a career. Doubt I would’ve been as good as you, but i would have a value library of videos to learn from! Keep up the great work and catch you on the next one.

[@jmumbauer]

The video quality is excellent, but so is the AUDIO. The amount of time Karen puts into synchronizing the sounds of the time-lapsed cuts beginning and ending, the ASMR quality of Kurtis handling the swarf at the end... superb! Your efforts have not gone unnoticed!

[@andrelemay2471]

Oh yes amazing!! We also hear someone rip a little one at 30:18. Love waching his vidéos 😊

[@seanstewart8942]

"Video, and, so is the audio." Your grammar hurts my head 😅

[@stevedotrsa]

That foam earplug trick is going to be very useful for painting things with threaded holes. Thanks, something learned every episode.

[@darrellshuman7751]

I can appreciate having the right tool, the right tool diameter, the right welder, and the right machine every step of the way for a no shortcut top notch job.

[@AntiDot70]

I get up every day around 5:30 AM and on Friday, watching CEE clip before I even get to the shower and run out to work is like a religion. LOVE you guys! Cheers from Chicago :D

[@mcbeenb]

I totally understand the color choice, but I can't be the only one wishing that cylinder came out in CEE blue. BTW Karen, that hyperlapse effect on the facing of the piston along with impossibly good audio crossfade was AMAZING. Being a customer of yours must be heaven. "Yea, we have this rebuilt cylinder here with specially made silicon bronze piston shoulders to prevent wear damage." Love checking in with you two every Friday.

[@prelich01]

You got some sweet shots on your processes! Awesome content. They should create a Grammy award for inspiring content.

[@CuttingEdgeEngineering]

Wow, thank you!

[@cenccenc946]

I was just thinking the same.

[@pacificcoastpiper3949]

@@CuttingEdgeEngineeringhey Karen, I wonder how YOU would do, operating the lathe for the first time

[@NotJRB]

Oscar?

[@hugolafhugolaf]

More like an Oscar, but yeah.

[@rustyshackleford4911]

The growth and development of CEE has been impressive. This was an absolutely beautiful build. I suspect in 5 years time we’ll see a video along the lines of “Righto guys so todays job is to make a Cat 336 for our exchange fleet; we’re having issues getting them here in Australia and its cheaper to make one here than it is to ship one from overseas” ha!

[@twasbrilligandthesli]

😁😁😁😁

[@murliramchandran5581]

Nothing but respect for this guy`s multi faceted abilities.

[@garetheaton8195]

It's an absolute delight to watch real tradesman with pride in his work. Please try to pass your skills on to the younger generation best wishes from the UK

[@cleanmachine08]

The rebuild was like the ingredients of a cake, with paint being the icing on top. No one favorite part, but as a whole thing is epic! Thank you for sharing it with us.

[@Retirement_Life]

That piston is a sheer work of art! A great series of videos on the cylinder rebuild. 👏👏👏

[@tinkeringinthailand8147]

I love to focus on the work Kirtis does, and I must say the shots and editing in this installment are 2nd to none; I loved the shots at the 5 minute mark. Thanks Karen (Edit: And Kirtis of course :)

[@thisolesignguy2733]

The one thing I love the most about this channel is that this is actual production machining. If there's a way to save time and still do the same quality, then Curtis is going to do it because time is money. There's no shortcuts, but there is production time saving. It really sets the pace for how I make signs also.

[@jakemoore7912]

I subscribed to Matty’s channel after hearing you talk about him, his struggles, and the gofundme. It’s beautiful to see the love and care you showed to help that guy out. I could see from his last video how what you did, and him seeing how many people care, is setting him up for the best possibility of a successful battle with his cancer. You’re using this platform in a great way and you seem like good people. Love the videos.

[@cenccenc946]

That shot from inside the lath as it breaks through is just brilliant.

[@GrowthCurveMarketing]

It’s really interesting watching a craftsman improve an OEM part. I wonder if someone back at the manufacturer will take note. As with many, I’ve haven’t missed a video in years. And while I have no professional connection to machining, I’ve always loved learning about it. Great stuff as always!

[@dazasc3994]

probably not, if a part never fails you'll never need to buy a new one = no money to be made for hitachi selling replacement cylinders

[@GrowthCurveMarketing]

Manufacturers care about brand value, and will sell more of a product if it has a reputation for durability. If this type of failure is unusually common, it may behoove a maker to update it's own equipment in order to derive more overall capitalization through goodwill than via replacement sales.@@dazasc3994

[@jody6183]

Hey Karen... loved the fade to Orange in the painting segment 😁 Awesome video as usual 👍🏻

[@kmagnussen1052]

I was an excellent student for two years in metal shop in high school. But we did not have carbide cutting tools. I went to college but I missed the metal work. I wish I could discuss your videos with my old shop teacher, Mr. Cullen. Cullen was a master machinist with GE for decades and when he retired he taught the next generation of machinists. Thanks Mr. Cullen.

[@terrynance2235]

As usual you both should be extremely proud of the work you do and the content you produce. Kurtis is a master at his trade and Karen your filming and editing is second to none!! I like seeing Homeless and now George and his buddy. It's all excellent!!

[@h-j.k.8971]

Who would have thought that such a beautifull piece of machinery was inside that raw billet 😲 As ever, top notch filming and editing from Caren and of course expert craftsmanshipp from Curtis, pleasure to watch.

[@teeanahera8949]

*Karen & *Kurtis

[@fhaddad3]

Dang, that welded-on Bronze ridge upgrade is pure genius.. Hitachi! watch and learn

[@MikkoRantalainen]

Why doesn't the OEM part have similar feature? Would it be too expensive to do in factory production?

[@samleigh7817]

The man from Hitachi, he say ????????

[@tonyInPA]

I volunteer on a retired US Navy battleship and i must say the hardware we commonly work with is comparable in size to that seen here! One of the few places on earth where this can be said.

[@garywemmer9342]

We just need to clear our heads with your delightful casts... You are a breath of fresh air....

[@jwdickinson643]

amazing series, Kurtis! It always astounds me what a one-man business like you and yours accomplishes to such exacting standards. and Karen, you videography, editing, running commentary and sneezing on camera are Oscar worthy!

[@andrewsherman400]

True craftsmanship -- that new piston looked like a work of art!

[@peterhall6656]

What a superb job. That work you did with the silica bronze on the piston was not for a first timer!

[@awesomecronk7183]

Men like you make the world go round. Thank you for sharing this!

[@kieranthompson1982]

I used to love working in a good shop , i miss it alot, i used to work in drilling and mining industry and i used to do a lot of the things kurtis does most people who dont do this sort of work dont know how good it feels to bring an ugly hacked pile of junk back from the dead and turn it into a precision better than oem manufactured component , the job also requires you to think outside the box for solutions to defects from other shops or just lack of maintenance from a customer but when the paint goes on and it functions like new it gives a real sense of achievement, i enjoy these videos because kurtis does things almost the same way i would do them, and hes lucky he has built up the tooling in his shop to do everything he needs to high standard which mining industry demands , nice work mate love the vids keep it up

[@ralphaverill2001]

I was impressed by the application of the silicon bronze on to the piston, and the thinking behind it; a relatively cheap sacrificial wear point to prevent a much more expensive repair if proper maintenance isn't performed. Well done!

[@matthewlramsey]

Love seeing those blue/gold chips coming off the lathe! Puttin’ the heat in the chip where it belongs! Keep up the great work!

[@frankiebanjo3251]

Hey Cutrtis, just found your channel and totally digging it! I'm a landscaper down in Moruya South Coast NSW where the Syd Harbour bridge stone-work was quarried and faced back in the 30's ... there's an open air shed/museum in town with a gigantic lathe for milling down granite colums etc. Has been talk in town for years about possibly putting it back into service somehow ...your 32 tonne milling machine install vid has put a lot of things into perspective. Totally unreal👍

[@CuttingEdgeEngineering]

hey mate welcome to the channel always great to have Aussie support. That must be a beast of a lathe! 💪

[@johngibson3837]

Never knew that of moruya, been there many times whilst fishing on that part of the coast

[@frankiebanjo3251]

There's a little monument to the OHS casualties ... it's a lathe but also a facing mill as a big old cracked circular millstone is there also. Interested in knowing if anyone knows what sort of bit would cut granite? @@johngibson3837

[@sofiebribiesca6678]

Yep, agree, brand new piston. The old one said forget about it. It really does show (thanks Karen) that you give your clients the best possible solutions. Isn't steel stunning? The way it transforms from rust to polished really exposes the diamond in the rough. Have a great week guys. Love to Homey.

[@DNomer]

Looks very pro to me. I watched all 3 parts. This guy has the full knowledge and capability to deal with these large cylinders properly. Plus the dog & birds are fun! Well shot and edited.

[@donnaperry7894]

Cheers from Peter in Maine USA. I am a long time fan who enjoys you and you wife and your wonderful talent on videos. You folks do a fantastic job on everything, the dog and birds included. I really appreciate your content and commentary; very educational. I am an old fly fisherman and retired butcher but I love the stuff you do. Thank you.

[@CuttingEdgeEngineering]

Hey Peter thanks for sticking with us for the long haul!

[@CuttingEdgeEngineering]

Hey Peter thanks for sticking with us for the long haul!

[@baileystack1486]

Thanks for the videos! They are so complete, soup to nuts. The work is fascinating, content is sterling, the filming is fresh and creative and videos would not be complete without the pup, the birds and the out takes. I give your channel 5 Stars, it’s very high quality.

[@twasbrilligandthesli]

👍🏻👍🏻👍🏻👍🏻👍🏻👍🏻👍🏻👍🏻👍🏻

[@jacquestubeetvous4981]

I absolutely loved this episode. Curtis, you’re such a skilled craftsman and I really enjoy when you turn a rough chunk of steel into a precision part. Brilliant!

[@johnjbh7089]

I've been at the game for almost 60 years, just coming up to 74 and still doing it. If I lived closer I would be knocking on your door for a job. Just loving every job you do and the way you go about it. Keep the videos coming Kurtis. Pure Genius. Thank you.

[@timschjei3917]

Oftentimes, ductile iron will be used for pistons, so if the wear bearings (which are on each side of the center seal) wear too much, the ductile iron won't gall the cylinder wall. The iron piston would still need replacing. But, with the brass welded on the steel piston, it becomes totally rebuildable. Just re-weld and turn it back down. It's pretty smart. 👍

[@MacDa-yy8xn]

That turned out very nice. It’s interesting to see how the process went from junk to new part.

[@Cyruscosmo]

Your attention to detail in each process is superb. I love the slo-mo clips of flying chips, it gives a better understanding of what is actually happening and video editing is spot-on. You two are an excellent example to other video creators of how to make good videos. I appreciate the explanation of what is happening and why and then showing the process. Adding Homeless being his awesome self and the rough-demeanor Kurtis feeding the cute little birds to the outtakes makes for an interesting video that I look forward to each week.

[@twasbrilligandthesli]

👍🏻👍🏻👍🏻👍🏻👍🏻👍🏻👍🏻😁

[@markchaplain1152]

I don't know whether you're just bloody legendary at what you do or that your lovely missus makes you look good! 😂 Bloody great work as usual you two !!🤜🤛

[@escratofago]

Hi Kurtis, what a great job both fixing the cylinder and the paint finish, it seems to be manufactured 👏👏👏 greetings to Caren for her great work 🐾🐖

[@25vrd48]

Using the fork lift to push the cylinder rod in the barrel is a lot easier than doing it the manually with a bunch of grunting and verbal expressions along with a few wacks with a sledge hammer . We used to connect shop air to our cylinders to do that and then run the rod out and in a few times , mostly making the repair job last longer while we were waiting for quitting time . Railroader's , we were masters at killing time but we did work hard and were fast at what we did . Where as your time is valuable and Ms. Karen won't let you kill time like that . Looks like you've got plenty of work setting on pallets just waiting to get done . That's job security is what that is . Oh yeah . Great video series y'all .

[@coxyofnewp]

It really is a pleasure to watch Kurtis take a solid block of metal and use his skills to make a well machined piece. I just go into an almost trance of relaxation watching him do the work !! Great work as always and Karen does an amazing job of filming, with Homeless bringing the good looks and fun.. What a team !! CEE for the win..

[@CuttingEdgeEngineering]

Thank you very much!

[@HanstheTraffer]

Homie is definitely good looking.

[@7700jessie]

Exactly what I was thinking. His work brings me a calming mood and a fascination to watch. I like the sound of the metal getting worked and all of the different angles Karen catches of the process and of course there is Homeless,...... it just would not be a viable video w/o the "Safety Officer" to observe.

[@s13majenta42]

It is everything in these videos! The structure, the picture, the skill... Thank you! It is so satisfying and peaceful.

[@MartsGarage]

I enjoyed this series, K&K. I liked the weld buildup on the piston and the looping the o ring around the seal. Very crafty. All the best, Mart in England.

[@graemegaerth14]

Well. I'm old enough to be your Dad, Maybe not Grandad but who knows. I am retired now but have been in engineering in various forms for nearly 60 years. I watch your show because I like your method of planning a job and seeing the end product, you must be proud of what you achieve and deserve to be. I don't know where you got your training but you were taught well or you are just natural. Anyway I have resisted commenting on your videos but when I saw you use Coppercoat on the cylinder head bolts I nearly wet myself. Over the years there were 2 products I relied on, Coppercoat and Stag, yeah sure evolution and improved technology has produced some remarkable products but if you have a tube of either of them in your toolbox you will always get out of trouble. Keep up the good work and I will keep on watching. Stay safe.

[@AllenCavedo]

Karen’s camera angles and editing are world class excellent.

[@derekkinsella2343]

Thanks kurtis, 💯% this is one of my best channels, i Watched every part of the rebuild, as I do with all ur videos, haven't missed 1 since I came across ur channel and I do be looking forward everytime for the next video to be released like a little kid 😅 best part for me was ur idea for the upgrade to the piston amazing idea, Thanks so much guys for all the hard work yous put in for all of us to enjoy ❤

[@shaunolinger964]

I just started watching you earlier this year. So far I immensely enjoy watching you. Between you on the heavy equipment side and Abom79 on the small machinist side, I get a very good all-round view of the machining world.

[@CuttingEdgeEngineering]

Hey mate thanks for the comment and taking time to watch videos glad you're enjoying them 👍

[@dtfm33]

Thank you for clarifying why the difference between repair vs making a new one!

[@kapfazo]

I can't explain myself why I've been watching nearly all of those episodes though, I love them all. Great work!!!

[@bobbybowers4065]

The amount of Knowledge that kurtis has is crazy knowing how to do all the things he does is one hell of a gift!!!! I enjoy soaking up some of that know how keep up the kick ass videos !!!!👍👍🤟🤟🤘🤘🤙🤙

[@desolatemetro]

Really nice. The paint job came out great and it really looks the part. Kurtis references OEM spec a lot so when he makes a change like the bronze seal grooves you know its a worthwhile change to make. Excellent filming and editing as always too!

[@maltesan]

You are a magician 😳 there’s nothing you can’t do or make a new version 2.0 This channel makes it worth waiting for the whole week for a new episode . Cheers from Sweden 🇸🇪 and have a great weekend 🤙

[@racerxv6valvoline424]

This is my new go to. You're work is more than what an artist produces.......Once I start I can't stop. Bad thing I am doing this at work..

[@willschluneger709]

Homey is a gentle giant 😂 I love seeing him in your videos

[@TheLastTater]

amazing rebuild. Thanks you so much for taking us along! I’m sure Kurtis already knows this trick. But when taping off the ports on the cylinder before paint, you can use a mallet and tap the edges to weaken and soften them to tear off the excess tape leaving a perfectly taped edge.

[@kahutochishisumi9056]

I love how you turn those chunks of bare steel into beautiful machine parts. From Nagaland, India

[@astonmoore6126]

Hey there guys, thanks again for another amazing video, always makes Friday more bareable. Kurtis, a little trick that I found for removing the excess masking paint from a job that works 100 times better than a blade, is a small round file. Just a light stroke along the edge of the part and the tape is dealt with. It also minimises the chances of the tape tearing or peeling up from cutting it

[@Smannellites]

I an fascinated by your ingenious use of the machinery at your disposal to carry out difficult tasks. It would be interesting some time to see the lift system you have in your workshop to move stuff about. Thanks for great videos - you make a retired engineer very happy !

[@rocketman13f51]

The piston head was the most amazing part of the build, because you revealed some of the tricks of the trade, like bronze wear rings and using the parting tool to cut square wall grooves. Also you must have really good diagrams or an excellent memory on how to reinstall all of those seals and wear bands, that was no easy feat!

[@chrisp8856]

As I watched Karen check the interior of the cylinder to see if the lady bug was still okay, I was relieved to know that I wasn’t the only one worried about every last one of the creatures on this planet.😂 Unbelievable quality repairs Curtis! Thank you both for the great videos.

[@NZ_NATIV3]

Thanks for the time and dedication you both put in to this channel great content is rear these days and CEE provides that thank you kurtis and Karen

[@CuttingEdgeEngineering]

Hey mate we appreciate you saying so, support like yours definitely helps us keep motivated 😎👊

[@walidmohamed9729]

The genius of metal turning and his assistance, I extend my highest regards and respect 🌹🌹🌹

[@JM-mb6tf]

That is not a piece of steel - it´s ART !!!

[@elemate]

What a beautiful part has been refurbished at the end and even upgraded !!! Hitachi should use it on all new parts to save cylinders from critical damage. Karen has once more amazed me with nice and interesting angles of filming. Thank you for adding the part of Curtis showing the shavings of the big drill *that also could have been in the production video instead of blooper part🤩

[@markprior6009]

You’re getting really good at painting dude. Be really interesting to know when a customer buys that from you. Interesting as in how long it was in stock before it got exchanged. Another great episode Karen, best wishes to you both and thank you for the entertainment 💙❤

[@stevepiechock9234]

This was a perfect culmination to a job well done! The side show of the bird feeding and humorous moves they make is always a plus to your vides. Thank you both, excellent video.

[@DD4DA]

It's really good to see that craftsmen are also showing their professional skills here. And I haven't even seen a CNC machine in use. Welding as it should be; turning by hand, as I know it, and finally honing and measuring so that a new cylinder is made from an old one. I don't want to discredit anyone, but the last videos I saw were from India and Asia. The botched work is just appalling. I've watched a few of your videos and I have to say that I've rarely seen so much mechanical universality. Hats off - I'm deeply impressed and nobody can do it so quickly. Great work...

[@gilsonfelix3415]

Love to watch what you six have been doing, always fantastic. I mean 6 because the family has grown hahaha.. Thank you so much for teaching us how well done things are done . My best part is when things don't go straight " get stuck " and the way you solve them, amazingly

[@davidmackworth3129]

Fantastic work yet again, attention to detail is beyond normal! Great work Kurtis.

[@Bristoll170]

52 minutes of once again incredible Karen content showing off Kurtis's ability, just whistled by. So thanks as always for the weeks highlight for this, and no doubt most other viewers. Love the wild life content that goes with it, and MAN is that a frekin' 90mm drill kewl! Cheers Pete' New Zealand.