Making A Rusty Cummins Flywheel New Again!

[@cameron878]

Anytime I recognize a customer's name on the caller ID or a vehicle rolling down the driveway, I'm like oh god what did we screw up. Most the time it's like "hey y'all did a transmission for us a while back, it's still doing great, I got another one though!".

[@becomematrix]

Me too!

[@plagueless9829]

Get more detailed with your organization of each transmission you tear down and proper documentation to make you more professional and confident knowing you can go back and see what you did might save your ass sometime

[@cameron878]

@@plagueless9829 ok

[@danhorton6182]

I do electronic restoration and repair, vintage audio equipment mostly, and I get the same way. If I see a name or number call or text that I recognize I’m like ahhh crap! Luckily 99% of the time it’s like “hey, I picked up another amplifier, can you work your magic on it too?” Then I wipe the sweat off of my brow lol.

[@cnf6045]

I’m a mechanic, and I just wanna say chamfering that edge is much appreciated! I’ve got a couple good scars from rough edges on flywheels…

[@tntagridiesel7732]

Nice to see mine isn’t the only flywheel grinder that gets the drain plugged even with frequent cleaning and wipe down. Keep up the good work.

[@JAMSIONLINE]

I don’t know how the guys who never clean could ever keep it unplugged 😂

[@williamfoster4268]

I worked on a truck that had the sharpest crank pulley ever, cut me down to the bone. Good to see you taking the edge off!

[@gabechiplin8140]

Once again the care you guys take is apparent. Thanks for sharing and keep em coming!

[@kellyappel3015]

Can't say I've ever noticed a sharp edge on the flywheel due to machining, so maybe other shops do it too. Either way, the extra step of chamfering IS appreciated. When removing a broken bolt (flush or recessed), ALWAYS weld the flat washer first, and drilling the bolt a bit also helps. Welding the nut and washer in one step reduces the amount of penetration you'll get into the bolt. Have heard of horror stories decades ago where machinists weren't aware of the specified heights on the multi disc clutches. Yep, slippage occurs right away.

[@rogermontee8264]

Great job on the grinding of the flywheel Guy’s.☺️☺️☺️☺️👍👍👍👍🇺🇸🇺🇸🇺🇸🇺🇸🇺🇸

[@wilsonrawlin8547]

Not because I was arrogant, but because I know I did outstanding work. Whenever I saw a repeat customer I knew they were bringing new work to me. When you make absolutely sure your work is spot on and cover everything with the customer. You can't go wrong. A big part is educating and guiding your customers in their repairs.

[@lqueryvg666]

Man - that "old guy" is really earning his keep!!! Getting water for the sump and cleaning it out? OMG - a keeper!!! LOL!!!!

[@JohnnyAFG81]

I enjoyed this video more than I thought I would. I’ve always known the flywheel machine as a Blanchard machine.

[@Kumquat_Lord]

It is indeed a Blanchard grinder

[@danielrepman5606]

I've done a few of that style flywheel over the years. Always took the drive dogs out or intermediate plate guides (whatever you want to call them) out so you dont ruin the grinding stone and the new surface goes right to the outside edge. There is a special tool too then reinstall the guides square to the new surface so the intermediate plate doesn't hang up.

[@colinlawrence2186]

Thanks for sharing this with us never seen this operation performed before although i have installed several throughout the years Take care stay safe and may God bless you always 🙋🏻‍♂️🇬🇧

[@thomasmurray4717]

Excellent job. 👍👍

[@chevyboyforlife4234]

You are so lucky that your dad is a machinist you got to grow up around all those cool machines and learn how to use them my father finish sheetrock but I'm a mechanic at heart

[@rotax636nut5]

Excellent! back in the day I used to do the exact same kind of work on a similar grinding machine, our competitors machined worn flywheels in a lathe or a milling machine, which was fine, but you just can't beat a ground finish for accuracy or looks! Thanks for the video and please keep them coming. 'Sausage' HT Racing Ltd

[@gretchenmorfea5988]

Great video man! I love watching these! So informative and entertaining! The precision and knowledge is so cool! Awesome to see, especially being a new home mechanic! Keep up the good work and best wishes to you and all at JAMSI!

[@stephenbullock1443]

Excellent work

[@48statenomad]

Damn working towards 300k subscribers. That's awesome.

[@kylesalem-fuson8012]

We had I think the exact same flywheel machine at the first diesel shop I worked at. Or at least looks like it.

[@brian2359]

Why I thought flywheels were cut like a brake rotor is beyond me! Lol

[@wyattsmith4198]

They can be turned on a lathe but surfacing as seen in the video leaves a better surface finish for the clutch to break in on

[@nct9466]

Cause you believed a poor idea... and off car rotor machining also is poor quality

[@gmcman355crazy]

They can be turned but grinding is better . Have turned my share of flywheels and never had one have a problem

[@SR-yp3eg]

In some OEM situations they usually are machined with a lathe type of machine but once they are used,abused and worn the best method is by abrasive grinding

[@Capt_Ron]

Beautiful

[@timot7746]

I have done that on a lathe a few decades ago to a 4 cyl Opel flywheel, but i prefer a ground finish, nice job, as always!

[@miceinoz1181]

Ah, my interest again sated by another JAMSI video. Luv ya work!

[@blakeworsham3026]

I did these all the time at my first machine shop job.

[@fredproctor6973]

Nice job

[@shadetreemech290]

I envy you for the work you do and the machines you have. If I were to do it again I might well take up machinist as a profession. Beautiful work.

[@RuralMidwest]

Thank you for making this video I have always wondered how this was done.

[@bigal878]

Great job and thanks for the detailed description. 👍🏻🇦🇺

[@benjurqunov]

All your finished work looks good ! Too bad you’re not in my neighborhood.

[@j.robertvillarreal5926]

I remember these😂😂😂😂

[@98integraGSR]

MAAAAAAAAAN.... I need you to call my local guy... I've had to go get STITCHES after installing a flywheel he did for me 😅

[@jayloftus9206]

The zinc coating on the washer and nut you used is poisonous when heating to welding temps of a MiG gun. Make sure you have good ventilation and filtration when welding hardware like you used.

[@SR-yp3eg]

To assist in drainage of the coolant etc the machine I used to operate had 4 drain slots machined radially in the adaptor rings.if yours don’t a hour in the mill will do the job

[@ditzydoo4378]

Swarf!. I've learned a fun new word today. >~< Yeeeeaaaa! ^~^

[@rosswalker9789]

Good job 👍

[@txstang84]

BEAuuuutiful

[@shaneo5196]

Thanks you!!

[@nicholasr7987]

Always wash with water outside of building first. Some friction still has asbestos in them. TY India and China

[@specforged5651]

Sworf! What a great word!

[@WesB1972]

Swarf

[@specforged5651]

@@WesB1972 Either way! 😂

[@jasondaniels5321]

The shop I work for uses a brake lathe to surface flywheels. Pot flywheels like that are a special kind of pain in the ass

[@grahammboyett3172]

I once turned a flywheel on a brake lathe, of course I don't recomend it. But it worked. 😂

[@anthonyuren1983]

I do this all the time but never use the washer... What's the washer for?

[@chikkenbonz]

Dont know anything about machining, but I found this video very satisfying and interesting. Thanks for sharing your trade! Just curious...how many times can a flywheel be re-surfaced?

[@wackowacko8931]

The manufacturer usually provides a minimum thickness that the flywheel can be machined before causing an unsafe product. Brake drums used to have their minimum thickness cast into the drum so that they couldn't be machined further than a maximum distance, some other cast parts have this as well, but not typically flywheels for the most part. You usually have to look those up.

[@ethangallaher2514]

I wish our machine shop took the sharp edges off lol I’ve sliced myself more than once on the sharp edge of a flywheel

[@Failure_Is_An_Option]

First is on them, every one after is on you. You are fully capable of chamfering an edge.

[@trevorbickham7505]

Out of curiosity, what do y’all charge for a flywheel that large

[@gafrers]

Great 👍👍

[@smashyrashy]

What do you do if you get a job where you dont know the specifications for tolerances or distances for example and the customer also doesnt know? (Or if it can't be found in manuals)

[@h0mbsk]

You guys need a CMM

[@Failure_Is_An_Option]

Send one over.

[@johncholmes643]

That is for an 855 Cummins

[@zacgougeon6496]

I’ve my diploma in tool and die maker/ general machinist plus a course in CNC machine but I would like to learn automotive machining I would like to know if there’s schools offers automotive machining courses because no school near me (I live in Massachusetts) is offering that kind of courses thanks

[@happymann839]

Ausgezeichnet 👍👍👍👍👍👍

[@matthewwhitten3335]

Really need to use black oxide or non coated washers and nuts for welding. Welding zinc galvanized fasteners is pretty dangerous even with a welding mask. Don't want welding fume fever.

[@Failure_Is_An_Option]

Lane... stay in yours.

[@Aleks_Mechanics]

notification squad!🔥🔥🔥

[@daviddickerson5418]

When you are checking the depth just zero the DDG on the top edge of the clutch drum and measure down. No need to do any maths to deduct the straight edge height. Yes with an old school depth micrometer you would need to deduct the straight edge height but not with any digital workshop toys !

[@jeremymcclanahan2389]

What does it mean to "let it spark out?"

[@Failure_Is_An_Option]

Run in position until it no longer sparks... "sparks out"

[@garyhowe88]

So hard to find any one to grind flywheels here, and most engineering machine shops aren't interested 😔

[@dieslike]

это лайк!

[@VernonChitlen]

Was that a left handed drill bit?

[@JAMSIONLINE]

Indeed

[@СергейМатвеев-з9ю]

А почему нет сетки торцовой?

[@samueljohnclark]

Shiny

[@sonoragingerdoodles]

Much respect. Great video.

[@kennysherrill6542]

👍👍👍👍👍♥️🇺🇸

[@rectificadosytorneria1255]

Engine Flywheel Grinding studio.kzbin.infoN4440Va-JlM/edit

[@joannaatkins822]

I do love precision grinding, if you get any more like this I'd love to see them too (if you think they're interesting)

[@JAMSIONLINE]

Sometimes the things that I find interesting are not interesting to the internet, and vice versa lol.

[@smashyrashy]

@@JAMSIONLINE when in doubt record everything lol

[@richardpalleschi4807]

As a retired mechanic of 43 years. We all appreciate when the sharp edges are chamfered so less hand damage.

[@Kumquat_Lord]

As a machinist, I always put an edge break on the parts I make

[@AmpdLSU]

A tip I recently learned: To measure a step with a caliper, use the opposite side of the caliper from the depth gauge bar. (Use the top flat side of the fixed jaw, and the top flat side of the movable jaw for a clean step measurement.) Now I only use the depth gauge for small bores like a blind hole. Edit: I’m aware you have far more experience than me and may not be using this step measuring surfaces for a reason, but others may find this knowledge useful

[@Juan-os5qi]

Anything can be helpful to the one who listens thanks

[@CraigLYoung]

Thanks for sharing 👍

[@michaelblades917]

You keep making them I’ll keep watching them.

[@zdog90210]

It's always good to weld a new nut on the top of the broken off bolt because then you just made yourself a new bolt 🤷🏻 no need to look for one on the side of the road 💪

[@djosbun]

Thanks for the detailed explanation of the flywheel reconditioning process!

[@seancollins9745]

last transmission shop I worked at had a flywheel grinder, IIRC 150rpm for the disc and 2000rpm for the grinder

[@alanchan1772]

Thank you I enjoy all your videos 👍👏

[@damienreilly8061]

Great information and education as always! 🤙🇺🇲

[@SLeslie]

That yellowish-white powder on the nut after welding is zinc oxide and it is not particularly helalthy. It would be better to use non-galvanized hardware to welding to.

[@dangerrangerlstc]

I think the chamfer on the inside is a bit necessary since the inside corner of the machined mating surface of the clutch housing often has a very small radius. Putting the small chamfer gives clearance for the radius. We have a similar flywheel grinder in our truck shop. It's one of the more abused tools we have. People often feed too hard and break the grinding stone

[@SR-yp3eg]

If I remember correctly the van Norman grinder I used a while back had a adjustable bar on the turret that would except carbide lathe type tooling to correct the radius post grinding so as not to damage the CBN cup wheel

[@daynemartin1085]

That is a 14 inch pot style flywheel for the small cam and big cam cummins.

[@redwarf8118]

really, you are unsure why the cut off wheel leaves a rugged chamfer? take a guess.

[@phillipmurphy4974]

As a mechanic I thank you for removing sharp edges

[@tonyking3125]

Is there anything ya'll can't do?

[@jameslapointe3044]

Besides cuts - sharp edge can be a stress point in the metal

[@SupersonicHeart]

This is how I removed the broken taps

[@jimg8806]

Looks like a wheel from Continental Diamond. Any chance I'm right?

[@Failure_Is_An_Option]

Not even close. Norton.

[@normanwray1974]

The problem I see by not removing the intermediate plate pins if you grind to much it could hit the where the steps are and besides the wear on the the cost of new ones are around 30 dollars. As a mechanic I would not accept a flywheel ground like that.

[@Failure_Is_An_Option]

Yes you would because you would never know....

[@Freddie44utube]

It’s a dying art unfortunately love watching a good machinist at work

[@Failure_Is_An_Option]

No it isn't... Americans and their drama...

[@stevegarboden2437]

I always take the drive dawgs out of those flywheels, they're usually worn out and need to be replaced anyway, and at $230 for the CBN grinder wheel I'd rather not take the chance of damaging it, and I always take the time to dial it in for the same reason.

[@johnsushchyk7933]

Always enjoy watching n learning about your excellent machine shop Thank you so much for taking time out to do this. So wonderful to see excellent work God bless you all

[@gummywurms226]

Great video! I can't wait till I have the money to get a 1.6L VW Diesel engine rebuilt by you guys. Although one would think, you would see the customer twice per job; once to drop the part off and again to pic it up. Lol

[@heffytomad4741]

It’s just a bell type clutch just older technology and can be converted to a newer style clutch

[@Workmule4ever2day]

this video is why you will be choice "go to" for Penzoil or better.

[@rickl7024]

Looks like it’s out of a 1970s cummins eng out of a semi

[@TheBigdutchster]

What are the pins on the inside diameter used for?

[@douglasmiller7618]

Those are to hold the clutch center plate .Should be removed and replaced every clutch job.

[@Failure_Is_An_Option]

@@douglasmiller7618 Nope... nice try.

[@MegaEmmanuel09]

30 seconds into the video, I'm curious: When you slide out the rail of the spray cabinet, how come you touch it with your bare hands if it was just in a caustic solution?

[@JAMSIONLINE]

The smaller spray cabinet shown in the video is non-caustic. That being said, still irresponsible of me.

[@bladewiper]

very interesting. Thanks.

[@thomaskoshinsky7768]

Yes,those cuts hurt the most

[@fjb4750]

Another great video Thank you!!!!

[@Failure_Is_An_Option]

Nobody cares what you have to say trumtard.

[@fjb4750]

@@Failure_Is_An_Option the first part of your user name says it all. FAILURE

[@Failure_Is_An_Option]

@@fjb4750 Of course you would not see the meaning of such an alias. Trumptard. Being told what to think and do...

[@ericfaley9019]

As we all know Ram’s use Cummins engines. In the service manual it states Do NOT resurface the flywheel replace only. I’ve asked both Ram technical hot line and the Ram training center. Both stated they are not flat there is a taper to them. How do you put a taper in the remachined flywheel like the factory does.

[@Icutmetal]

What’s a Ram got to do with this video?