Outstanding job Yuchol, I don’t see how anyone could do a more meticulous approach-Well Done ✅

@woodscreekworkshop9939

4 жыл бұрын

Thanks Michael as always!

Hello Yuchol, I heard you say you are not an expert and that may well be true But, you are showing and using 10 times more common sense than most of the so-called experts use, and this is from my 67 years of experience. Keep up the good work and sensible methodology. It works! MoK

@woodscreekworkshop9939

2 жыл бұрын

Thank you 🙏🏼

Great job Yuchol. I admire your tenacity to do an excellent job on all details of a project. Thanks for taking us along and take care.

Great work! For the main spindle bearing oil holes, make a pipe cleaner into a V, shove down hole, then flatten the legs. I know you put the magnets there, which is a great idea, but this will help stop any non magnetic material getting down and into the bearings. I have seen this on some old lathes I rebuilt, definitely stopped some junk!

I think you deserve a medal. This was a deeply thoughtful, professional, video that clearly resulted in a vastly improved product. Happy lathing!

@woodscreekworkshop9939

4 жыл бұрын

Thanks a lot Brad!

Thanks, Yuchol. That was a worthwhile project and I'm pretty sure you've reset your lathe's lifetime back to better than new.

@woodscreekworkshop9939

4 жыл бұрын

Thanks Richard!

Yuchol, you did a superb job. I am getting ready to do the same to my lathe watching you gives me confidence in the process. Thanks for this

Well done Yuchol, expert or not. Thank you!

I have been eagerly awaiting when this lathe was running, great job as always. Thank you for letting us join the journey.

@woodscreekworkshop9939

4 жыл бұрын

Thanks Carl, glad you found it interesting

Very informative! There’s a lot of things I didn’t know about bearings that you talked about. Thank you!

@woodscreekworkshop9939

4 жыл бұрын

Glad to help!

Outstanding! Thank you for sharing such quality practice while remaining humble and honest. Job well done!

@woodscreekworkshop9939

4 жыл бұрын

Thanks Travis

You started out with the goal to make it better, and you definitely accomplished that. Your lathe is better than ever now. Nice job.

@woodscreekworkshop9939

4 жыл бұрын

Thanks Charlie

Loved all the info. When the magnets went in...OMG. loved it.

Great job! Thanks for taking the time to document this. I'm sure others will find it helpful if they need to replace bearings in their headstocks!

You sure brought me bad luck. :) About 30 days after watching your video my small 13x40 just like yours started having spindle bearing issues, like getting way tighter! But, thanks to your video, I'm not walking into it blind!

@RJMachine62

3 жыл бұрын

I have 3 more lathes but my 13x40 is my go to for most my small jobs. It really holds tolerances good and has been a good machine. It's an Enco, not a Jet but they look pretty similar.

@woodscreekworkshop9939

3 жыл бұрын

I am sure you will take good care of it 💪🏼

Great job, thanks for your time to share this. I have 2 lathes that I will be going through. And a big 👍 for pointing out about the new bearings have the marks for the run out.

Brilliant video series, I am super impressed with how meticulous you are to detail and how clean your work area is. Now I am inspired to go change the bearing on the headstock of my lathe, they are due for renewal. It’s a pity on so many tools and machines nowadays that one needs to spend so much time to remanufacture the parts to speck and do all the cleaning and demurring to get them to run the way they were intended. Once again, brilliant job, I really enjoy your videos.

@woodscreekworkshop9939

4 жыл бұрын

Conrad Greer thanks Conrad for your kind words

Looks great! Love the attention to detail, satisfies my OCD as well. Having done similar on my mini lathe, it's very pleasing to get it put back together and make a cut. And that was a very beautiful cut.

@woodscreekworkshop9939

4 жыл бұрын

Thanks David! 🙏🏼

Thank you for taking us along on this adventure. I really liked the explanations of what you were doing and why. All the best to you and your family!! Norm in Arizona

@woodscreekworkshop9939

2 жыл бұрын

Thank you Norm

I enjoyed this video, and I am glad to know I am not the only one that has OCD about things like this. Excellent job.

Very interesting you probably have a nice lathe for many years to come . The magnets are a great idea already working especially after you were so clean and carfull thanks for taking the time to share kind regards Shaun 😀😀

@woodscreekworkshop9939

4 жыл бұрын

Thanks Shaun!

Very much enjoyed watching you go through this project Yuchol. You are very meticulous. It’s nice to see things done correctly. It’s unfortunate that JET didn’t do the same. I’m also a hobbyist, but from the opposite side of Washington in the Spokane area. Enjoy your videos, keep them coming!

@woodscreekworkshop9939

4 жыл бұрын

Thanks Mike 👍🏼

Just what the doctor ordered! Top work, Yuchol! Greetings from Chicago...

@woodscreekworkshop9939

4 жыл бұрын

Thanks Matthew!

Great project Yuchol, and great result (subjectively! qualitatively!) :-) Brilliant work and I love the look of the clean fresh paint and the clean gears and so on. It will pay you back for decades I think. Cheers, Craig

@woodscreekworkshop9939

4 жыл бұрын

Thanks Craig!

Good job, and good work. How nice it is so see & hear someone who doesn’t think they know everything! New subscriber - keep up the good work thanks mate.

Great job! I enjoy watching you work.

@woodscreekworkshop9939

4 жыл бұрын

Thank you very much!

Quite the undertaking. Well done! Thanks for sharing! Cheers from Canada

@woodscreekworkshop9939

4 жыл бұрын

Thank you

Great work Yuchol.....You more than likely made the lathe sound the way it should have when it was designed. Cheers...Wayne

@woodscreekworkshop9939

4 жыл бұрын

Thanks Wayne!

The damaging chips you had remind me with "The enemy from within". Good job and description. special thanks to you & Randy Richard.

@woodscreekworkshop9939

2 жыл бұрын

Thanks

That lathe came out beautiful. That headstock sounds very smooth. Every bit as good as some austrian enco lathe. Wonderful.

@carlhitchon1009

3 жыл бұрын

I believe you mean Emco.

Very nice job, an absolute ton of work and you taped it as well, very impressive, cheers!

@woodscreekworkshop9939

4 жыл бұрын

Thanks, it was a lot of work!

Great video on the rebuild. Wow, for what you found and had to fix, Jet's Quality Inspection process needs work. Especially as prod Jet is of their products. Glad to hear you added magnets in the gearbox. That helps a lot to catch wear metal. Your rebuild turned out great. Thanks for sharing.

You did a real fine job Yuchol. I know it's hard to let it go when it's not perfect, but some (inherited) imperfections are better accepted than invested in, as you've wisely concluded. Congratulations on a terrific outcome :)

@woodscreekworkshop9939

4 жыл бұрын

Thanks Steve, it’s better to address the problem than whine about it (which I did a bit of) 😁

Hi, your both videos are simply superb. You have done a fantastic work. Congratulations and thank you very much for sharing. Best regards from Switzerland.

@woodscreekworkshop9939

3 жыл бұрын

Thank you Tito for your kind words 🙏🏼

Fantastic work. Impressive attention to detail.

@woodscreekworkshop9939

3 жыл бұрын

Salah Zenieh thanks

Beautiful job! You inspired me to take another look at some clatter in my mill spindle.

@woodscreekworkshop9939

4 жыл бұрын

Do it! It will only get worse if you ignore 😁

Really good set of videos. Thanks for doing this.

@woodscreekworkshop9939

3 жыл бұрын

Thank you Matt 🙏🏻

Thanks for a very good instructional and assembly video. I didn't know spindle bearings were marked for runout and the importance of installing them the right way. I'm an experienced machinist and toolmaker but still learning new stuff every day. One point about precision flat stones; Illustrations always show them used dry but I've found they work much better with a light spray of WD-40. The lubricant flushes the embedded metal and grit particles to the surface and keeps the stones clean. Continue to rub together to keep them flat but lubricate lightly for better performance. You will feel the difference.

Opened a import 6” 3jaw last week and saw the same black crud and loose bures inside. Cleaned it up and now it goes great. 0.002” runout on a 200$ import chuck, I can live with that. Real nice build. 👍👍👍

@woodscreekworkshop9939

3 жыл бұрын

Glad you got the chuck going 👍🏻

Excellent video, with lots of helpful information. Thanks!

@woodscreekworkshop9939

4 жыл бұрын

JanTim Bramble 🙏🏻

Nicely planned and executed!

@woodscreekworkshop9939

4 жыл бұрын

Thanks Stan, I am happy with the outcome!

Very nicely done Yuchol. I think it will work. Monitor and adjust after you use it for awhile. Great job.

@woodscreekworkshop9939

4 жыл бұрын

Thanks Randy. If I was having another kid, I'd name him after you, but you're safe.

@RRINTHESHOP

4 жыл бұрын

@@woodscreekworkshop9939 Nice, Yohaun is a nice name.

Good work Yuchol I did not know about indicator marks. Thanks for sharing

@woodscreekworkshop9939

4 жыл бұрын

TommyGun Machining thanks Tommy!

Excellent content! Thank you.

Great work! I'm glad for you that you were able to save so much money on bearings, wow, big savings! 2/10ths..... not bad at all! I could live with that :) Thanks for sharing this very informative rebuild! Much appreciated! :)

Thanks for a very good video. I have not seen anyone do this subject and I learned a lot.

@woodscreekworkshop9939

4 жыл бұрын

Glad you enjoyed it!

great job Yuchol! you definitely improved your lathe in doing this overhaul job...jet should be ashamed of what they put on the market. keep us posted about the results you had with that project...please!

@woodscreekworkshop9939

4 жыл бұрын

Thank you so much!

@wilde.coyote6618

Жыл бұрын

Jet is made under the Chinese Communist umbrella. On aleast 2 occasions I have seen Chinese lathes ran up to a high rpm , than brought to a hard stop, only to have a shaft bend in the headstock , or gearbox. One was an ann yang and the other was a jet. I have been a machinist for 40 years. Business owners will always go cheap on machines , rather than buying a good used leblonde, monarch, lodge and Shipley. These older machines you can still get parts for. Good luck with parts or technical support from anything made it China. The shame is, these business owners proudly fly an American flag in front of their business.They Don't give cost of living adjustments,employee performance reviews, etc. I am going off on a tangent now. I apologize.

Good job Mr. Yuchol. I just finished an old 17 x 96 inch LeBlond and am now working on a 13 x 36 inch LeBond. I have another 13 x 72 inch waiting also. Thanks for the video...

@woodscreekworkshop9939

4 жыл бұрын

Wow, you got a lot of work ahead of you, good luck!

Hats off to you and your channel.... that was and outstanding rebuild. I have the identical lathe only it is the Grizzly and it was getting the same way. They were about 5,000 new about 20 yrs ago. The were slapped together and shipped to the us. For the price, it has been a good machine.

@woodscreekworkshop9939

2 жыл бұрын

Thanks

I don't even own a lathe and watched this beginning to end. You made a great video.

I bet you are glad that's back together ! Great job .

@woodscreekworkshop9939

4 жыл бұрын

I am glad, thanks Max 😃

great video. thanks for the info and advice.

Excellent project. I have a very similar Clark 14"X 40" and intend to use your video as a bit of a guide. Thanks for the content!

@woodscreekworkshop9939

4 жыл бұрын

Glad it was helpful!

nice to see what is inside of a newer lathe, i have an old colchester and all the gears rattle and make strange noises, like some strange metal symphony, its possibly older than i but never has had a failure

Beautiful job yuchol.

Only 900 or so likes? You deserve many more!

Outstanding video. You have excellent work habits for this type of work. However, the initial spindle bearing adjustment should be set by measuring "Lift" at the spindle nose. Running-in bearings that are not tight enough, results in improper wear pattern.

great job! liked that you repainted it!

@woodscreekworkshop9939

3 жыл бұрын

Thanks Chris!

Nicely done Yuchol.

@woodscreekworkshop9939

4 жыл бұрын

Thanks man 👍🏻

I have a Kent 17x40. I pulled the cover off the headstock the other day and found way more metal than I would like to see. I'm going to change the oil a few times and install some additional magnets. Probably will have to replace all the bearings at some point, but don't have time right now. Mine was made in Taiwan in the late 90s, and they still sell the same machine today.

@woodscreekworkshop9939

4 жыл бұрын

That is a nice lathe, worth some elbow grease for sure 👍🏻💪🏻

Thanks for your video, very educational. I have the same problem with broken chinese bearings (broken ball cage) due to manufacturing chips in the headstock. I admire your accuracy.

@woodscreekworkshop9939

3 жыл бұрын

Thank you

Gday Yuchol, it’s all back to better then brand new, you did a great here, at least you know what you have got now which is a good thing, the run out in the spindal is incredibly good, I wish you many happy trouble free years of machining mate, take care, Matty

@ade63dug

4 жыл бұрын

Hi Matty.

@woodscreekworkshop9939

4 жыл бұрын

Thanks Matty for all emotional support!

Great work, thanks for sharing

Nice job on the rebuild love it

@woodscreekworkshop9939

4 жыл бұрын

Thanks John 👍🏼

You did a fantastic job on your lathe. I was glad you re painted it. I like the little magnets, especially the ones in the recirculation channels. You were smart to stop when you did. It’s easy for me to go overboard with stuff too. My machining hobby could turn into a rebuilding Chinese machines hobby really easy if I’m not careful. Lol

@woodscreekworkshop9939

3 жыл бұрын

Thanks, it’s working well now

That lathe sounds really nice to me! It’s just like I just put all new bearings and spindle in my Kent mill and all the old noises are gone but there are a few new noises just like your lathe! At least now I can hear myself think!

@woodscreekworkshop9939

4 жыл бұрын

Don’t do too much thinking, it hurts 😁

Very well done!

@woodscreekworkshop9939

3 жыл бұрын

Thanks!

Great job and super great sense of humor chinggu!!!!

@woodscreekworkshop9939

3 жыл бұрын

Thanks and back at you my friend 👍🏼

Great job Yuchol.....it's good for the long haul now...

@woodscreekworkshop9939

4 жыл бұрын

Thank you!

Hi I'm very impressed with your work, It's important that an inferred thermometer should never be used to find the temperature of a shiny surface (a bearing in this case). It can be off many degrees, reading the reflected temp in the room instead of the surface of the part. always use a marking stick designed to melt at a specific temp of the bearing. Nice work Rich

Great job.OCD is beneficial when doing a job like that.Too bad that Jet didn’t do the job right in the first place.

@woodscreekworkshop9939

4 жыл бұрын

Right!

@sblack48

4 жыл бұрын

You get what you pay for.

@fredsmachinewerks4811

4 жыл бұрын

I have king lathe. They have been around for the last 50 years. I have a Had good results. This lathe was no top of the line but alway come though for me. Cheers Fred

@firebladex8586

3 жыл бұрын

Jet is still a good brand but they have tools of every kind and so are not specialists in any one area. I think some of the tools with their brand on them are likely rebranded.

@jamesdavis8021

3 жыл бұрын

FireBlade X I think you are right. I have seen lathes of several brands that are identical.No different than Ford and Mazda pickup trucks coming off the same assembly line.

Great job. Awesome work.

@woodscreekworkshop9939

4 жыл бұрын

Thank you 🙏🏼

Another reason why Dean Smith and Grace lathes are best. They never break.

@patrickbeaumier8616

3 жыл бұрын

Too bad we don’t see a lot of those here in Canada.

Good job Yusol, like the small magnets, going to take my headstock cover off and do the same.

@brandontscheschlog

4 жыл бұрын

It sounds like a good idea but why not put a fine mesh metal screen over it?

@Brennor21

4 жыл бұрын

@@brandontscheschlog If that screen clogs up the bearing will fail, possibly seize. So not a good idea to put in a screen of any kind.

Nicely done! The inside of that thing looks much better with the white, and any subsequent debris would be easier to see. I like the little magnets in the spindle feed wells, I think that will happen with mine next time I pop the lid and it gets serviced.

Yuchol, really good work. I am adding a auxiliary electric oil pump to pre lube all the bearings.

@woodscreekworkshop9939

4 жыл бұрын

Sounds good! Thanks.

I'd be happy with that. You have to be disappointed with the lathe but now you know what you got. Good bearings, clean installation. I feel good!

@woodscreekworkshop9939

4 жыл бұрын

I feel good about it, thanks Jeff!

Thanks for sharing

Great job on the lathe!

@woodscreekworkshop9939

4 жыл бұрын

Thank you! Cheers!

Awesome work Yuchol. You have a better than new lathe. When I went to adult school taking machining classes they had a Jet lathe and I never liked the fit and finish. It seems you should go consult with Jet and help them up their game. Such nice work.

@woodscreekworkshop9939

4 жыл бұрын

Dudley Toolwright thanks Robert. I haven’t received an email from Jet yet 🤷🏻‍♂️

Enjoyed, I'm sure my lathe could use the same do over. So be expecting a shipment! Great job with the upgrade and the video. Keep um coming. Thanks again.

@woodscreekworkshop9939

4 жыл бұрын

Thanks Jerry!

well done, enjoyed the video

I'm guessing that the pointy head who first determined that OCD was a disorder doesn't have as clean a shop or tooling that works as well as yours. I salute you and your OCD sir. I'm inspired by it.

@woodscreekworkshop9939

4 жыл бұрын

Ah, thanks!

@CraigsWorkshop

4 жыл бұрын

Great point machinehead :)

Good job. I enjoy your channel and this deep dive into...not sure what, exactly, maybe coping. Coping is a tremendously important skill. Now might be a good time to quantitatively baseline the machine: noise db at two or three different speeds, runouts at several different distances of projection, surface finish under a set of precisely defined conditions. Then put that away, enjoy the lathe for the next year, then retest and see how much has changed. Good luck, good journey.

@woodscreekworkshop9939

4 жыл бұрын

Josh Drexler thanks Josh 🙏🏻

Great! I have the Jet GH-1440-W and it is noisy too. I blame the motor (single phase) for most of it but now with your experiences I'm also believing that the machine is in need of a head-stock clean-up and bearing replacement as well. I must thank you for your insights on this project! I have priced all of the bearings so getting ready... I'll also be looking for one of those ape T shirts - love it! I chuckled out loud! - 7-2-24 WELL this machine was a genuine mess! At some time in its life the oil was mixed with something that wasn't compatible so the oil was brown and thick - had stained the gears and shafts... The motor also had a melted run capacitor and it was growling. I like the three phase with VFD - that's going to happen. The documentation for these machines is quite poor so anyone doing this job needs to note carefully on disassembly the sizes of spacers and etc. Your video bailed me out when I mixed the two spacers on 'D' - thanks again!!

Great job, Yuchol! Pity that Jet put out such rough work. But if you ask me, she's sounding really good from where I'm sitting 🙂. You'll be wary for a month or so, every sound will launch a full scale investigation, you may wake up in a cold sweat for a few nights initially, yelling " FIRE! ". But eventually, the overwhelming awesomeness of having a lathe will take over and all will be well. In the meantime though, I'd put my therapist on speed dial 😉. Thanks for sharing! Cheers! 😁

@woodscreekworkshop9939

4 жыл бұрын

I know! I'm sure I'll be jumpy for awhile

Very nice job, congratulations. I wish you a good day. John

@woodscreekworkshop9939

4 жыл бұрын

Thank you John!

The thing people forget is there is a reason why certain machines are cheaper, they are not made, assembled or QC,d by craftsmen as that machine is going to be 10x the cost

@hey.you.in.the.bushes

10 ай бұрын

But, there is still a basic standard of care every machine should receive. Which this does not appear to have gotten at the factory. Like buying a new Nissan versa. Cheapest car, doesn't mean they can forget one of the wheels and blame it on being a low end car.

great job - I've repaired many straight drive automotive transmissions but this thing was far more complicated

@woodscreekworkshop9939

4 жыл бұрын

Thanks Ken!

Hello Yachol You did an outstanding job on the bearing replacement. Enjoyed The video nice end with those magnets They will help you big time they'll catch the smallest particles. So you don't have to do a rebuild for long time. Cheers Fred

@woodscreekworkshop9939

4 жыл бұрын

Than’ you so much Fred 🙏🏻

When mine need a good cleaning and bearing change and I have bozo show up I will know who to call to straighten me out. Nice job Yuchol. God bleas Stay safe

@woodscreekworkshop9939

4 жыл бұрын

Say no to bozos! Thanks 😁

Yuchol, I'm impressed mate. Job well done. I thought I recognised a bit of O.C.D. My eldest daughter(28y/o) has it. When it comes to machinery, a little O.C.D. is a good thing, if you know what I mean. Cheers from Australia.

GREAT JOB, ENJOY YOUR VIDEO'S

I'm certain you'll be taking it apart some more and making improvements.

GREAT WORK.

@woodscreekworkshop9939

4 жыл бұрын

Thank you! Cheers!

Geat video. If I could only have a large lathe like your 13x40 but I have a Myford and it works great.

@woodscreekworkshop9939

4 жыл бұрын

Thanks 👍

Very nice job!

@woodscreekworkshop9939

4 жыл бұрын

Thank you very much!

Good job, I would like to see other videos like this

@woodscreekworkshop9939

4 жыл бұрын

Thanks!

Very well done! You did a very fine job and you improved your lathe. Bravisimo! Thanks for sharing. Guess Randy kept you on course, guess you could say he helped you keep your bearings. Lol 😉

@woodscreekworkshop9939

4 жыл бұрын

I see what you did there :)

Relatively new subscriber here but I've been going thru all your videos over the past couple of weeks. Its unfortunate that Jet cut so many corners, but you did really good. Hopefully this machine will give you years of trouble free service. They aren't like the old US iron LOL. I think your headstock gearing best compares to the power feed gearing on my Monarch 12CK. The headstock gearing in those machines is massive. But I can't imagine what it would cost to build it today. Keep up the good work.

@woodscreekworkshop9939

3 жыл бұрын

You’re right, I wish I can find me a good old iron, but not common out where I am. Thanks for your kind words!