We try Tik-Tok brake disc resurfacing method

[@creepingjesus5106]

The question is; how do abrasive stones work as brake pads?

[@thomaslecroy7163]

Lol brake pads are abrasive pads

[@alwaysamongdragons7354]

@@thomaslecroy7163 But they are not abrasive STONES so I feel this is needlessly pedantic.

[@eh6971]

​@@alwaysamongdragons7354Thomas also would say a tomato and a potato are the same thing because they are both part of the Solanaceae family.

[@Iowa599]

​@@thomaslecroy7163sharpen a knife with a brake pad?

[@Workerbee-zy5nx]

You just answered your question. 😂👍

[@3rdpig]

I used to have a tool called the Grizzly Grinder, which did the same thing but in a more controlled fashion. It worked well for making them smooth as long as they weren't deeply grooved, but it was of limited value taking out the high spots. Note that while a lathe can remove the high spots that doesn't "unwarp" the crystalline structure of the metal. Also note that grooves don't stop the brakes from working, as long as they're not so deep as to weaken the rotor just put the new pads on and let them wear in. Or, just buy new rotors, most are dirt cheap.

[@DarkIzo]

meanwhile steel rotors

[@Lofi.z34]

If you drive slow, grooves are manageable. But for a performance car, grooves can send you over a cliff.

[@kirkc9643]

@@Lofi.z34 how so? Grooves and matching pads make for more surface area

[@killerdinamo08]

​@@Lofi.z34Which is exactly the kind of car you'd want this method of thined rotors apply to 😅.

[@Lofi.z34]

@@kirkc9643 From my experience grooved rotors/pads had noticeably less applied braking force compared to flat brake rotors. Once you drive over 120 mph you'll definitely know the difference haha.

[@mikeallensonntag]

Pretty awesome. In reality I think min rotor thickness is bs anyways unless they become very thin.

[@jimmykreutz6087]

ABSOLUTELY BRILLIANT!!🤯

[@peles73]

The whole process costs 3 times the price of a pair of new rotors

[@will891410]

Is the translation 1 to 1 or a bit improvised? I know nothing of russian.

[@mathieuraedemaeker2201]

I use a sand paper orbital machine with 40 red paper

[@dalesmit7869]

your mother wont be happy about the mess on her driveway

[@maximeberube7490]

As a ex poor guy i did this many time but using a grinder with 40 grit sand paper discs. Starting by removing the heavu scale with a hammer, then grinding them one side at the time. It work very well, even on slightly warped disc by taking a little more time and les pressure. The only time a disc is no more useable is when they are too tin or the center fins are gone

[@newagetemplar6100]

Lol been there done that 😂 last 5 years on a Nissan navara.

[@skuula]

40?!? 40 grit is classified as a weapon of mass destruction here.

[@maximeberube7490]

Yes 40 for the rough part then something like 240 for 20 seconds each side for the finish touch

[@maximeberube7490]

I use the rougher grit i got because it's way quicker this way. I mean, if it take you 1 hours by disc it's way quicker to got some cheap one at napa. It take me not more than 5 minutes hammering the scale and another 5 with the wheel spinning and the grinder. I use a file in the processe to check if the surface is perfectly flat

[@Iowa599]

The thinner they get the quicker they warp.

[@JT_70]

When I was much younger I resurfaced hundreds of rotors. But, I used a brake lathe with a diamond cutter. We also made sure the finished rotor met the minimum thickness requirement.

[@theofficialdiamondlou2418]

That’s how I learned also. But I was thinking as a pre groove glaze remover this might work , but I’d use SS block with Diamond dust . To get a faster cut with less pressure , and material removed.

[@galesams4205]

Do you like brake shutter? no way this will work to much run-out. even NEW rotors will have some run out , thank a brake lathe.

[@coriant]

Yeah I've resurfaced a ton of rotors on a brake lathe and I've ran brand new rotors and there out around 8 to 15 thousandth and with a good lathe you can get them within 2 thousandth

[@DarkIzo]

perfect opportunity to do brake tests on bedded-in versus non-bedded in

[@martin1649]

By feel it's noticeable. when you know how new disc and pads feel, you'll know something is wrong. I hopped in a friends car whose brakes were done and he's only been braking lightly for a few hundred kms. I didn't feel like the braking force was good. Took it for a spin, couple of 80-50 hard slow downs, cool, then 3-4x 50-0 hard stops, then they started smelling, drove some more to cool it down, one more 80-50 slowdown, then perhaps 2-3x 50-0, cool and suddenly it braked as it should. A week later he said he noticed the braking power increased significantly.

[@johnhunter7244]

​@@martin1649maybe it depends on the pad type and brand. On my car I replaced the ceramic pads and the brand new ones bite hard just like the previous ones. I didn't do any bedding in because it's difficult to do on public roads.

[@ignacioalvarez1490]

@@johnhunter7244 bedding in is only necessary when changing the rotors

[@johnhunter7244]

@@ignacioalvarez1490 I guess that makes sense

[@nobodynoone2500]

@@ignacioalvarez1490 It can be needed if changing to a different type of pad material also.

[@jameskenney5623]

I've machined hundreds of rotors in my life, and most people don't understand that original rotors have a higher quality than the cheap Chinese rotors you buy from the parts store

[@bobgrant4341]

You should try polishing the rotor brake pad surface to a mirror like finish and do some stopping distant checks.

[@averyalexander2303]

Probably wouldn't show any meaningful difference. If the brakes are strong enough to lock up the tires, there's no more stopping distance to be gained from strengthening the brakes further. In the vast majority of cases, upgrading the tires and suspension and fine tuning the brake bias is what will improve your stopping distance, not upgrading the brakes themselves.

[@Tomatolover120]

​@@averyalexander2303I think the idea is some roughness is better than completely smooth since the pads will catch in the rough parts better. Like sandpaper on wood vs sliding a piece of copy paper on wood.

[@averyalexander2303]

@@Tomatolover120 I could see that being true, my point was simply that it's irrelevant as far as stopping distance is concerned and wouldn't show a meaningful difference in testing because slamming the brakes will lock up the wheels regardless of the rotor's surface finish. The surface finish could definitely affect other aspects though such as how the brakes sound and feel and how long the pads last.

[@cm5838]

Polishing the rotors would have the same effect as glazing, reduced friction which translates to reduced braking ability

[@NSC-Modz]

After wasting 50.000 liters it's finally ready to throw it in the trash 😂

[@michael47lamb]

Forget about those silly stones. Use an angle grinder in the same way instead. You will be done in about 30 minutes. No messy water to deal with either. Stand a concrete block next to the spinning rotors to steady and rest the grinder on so the warp can be removed too. Rock the spinning grinder back and forth against the spinning rotor to make an even surface. I have done it this way on several of my cars, it works like a champ! ;-)

[@FloridaMan7337]

All that labor you could just buy new rotors

[@u3962521]

@@FloridaMan7337yeah i am just thinking of labour time vs new rotor and pads. I can get a pair of bosch brake rotors and brake pads for 158 dollars aud delivered. And to swap rotors and pads its a 1 hour job tops. Getting the angle grinder ready, taking the tyres off car on jack stands and then swapping the rotors to do both sides..... and then still needing to out new pads on.... hardly worth it. If the rotors were 500 a pair makes more sense (toyota landcruiser prado owner )

[@FloridaMan7337]

@@u3962521 No it's not worth it. Just buy new rotors. I'm a 30 year mechanic. Don't do it.

[@brunofaccini5332]

Brazilian disc resurfacing in that thumb video 😂

[@cassianomartin2699]

Ahahaha Tião is commonly used here in Brazil when a mechanic does a bad job lol

[@gfarnden56]

your only mistake was watching tiktok

[@JT-4real]

The "warping" can also be from a crook hub bearing or the faces of the disc and hub are not clean. Most cars I work on I see that other mechanics don't clean the hub face prior to fitment of rotors.

[@zeropointzero]

It's more common than it should be. "I just had new brakes put on and there's a vibration when I press the brake pedal." "Yeah, here's your problem, the lazy cunt that installed your brakes didn't clean the chunks of mother nature's excrement off the hub surface."

[@anibalbabilonia1867]

It looked like it worked well for a while! Now how about using grinding stones as brake pad’s?

[@dubsydubs5234]

Works better with an angle grinder with a grinding stone, it removes warps as well, you just need the disc spinning quite fast.

[@nathanwoodruff9422]

The question is the rotor still in specification. A very thin rotor will warp quicky with lots of heat applied. That rotor may last about 10 hard stops before is it unusable due to the massive jitter when applying the brakes.

[@thedanyesful]

Good way to lose or damage a finger while trying to save the $8 a new rotor costs.

[@Narwh4le-]

Where do you buy $8 rotors?

[@busyguy7479]

I have to admit this will work if you have no other way to resurface a rotor. interesting experiment you guys are good at coming up with ideas that are workable in a pinch, good job keep the vids coming.

[@nobodynoone2500]

Congrats, your garage is now flooded, you have worn down $80 in stones, and now your rotor is too thin. Namebrand rotors are $20-$120 each for 98% of cars. Next time just make the stones the size of your pads and use your brake pedal, much easier to do nothing, but faster!

[@ThinkTechnikk]

Hello Friend: "I see that you have used my video to demonstrate this method, which doesn't work. You are conveying the wrong message here or you misandrestud hole point . My method demonstrates the removal of only deep rust, not the slipping of the disc as you claim here. I clearly stated in the video that this method is only for rust removal, and I have used this method many times and it works, as shown in this video. So, its ok use my video but please do not use it for bring wrong massage for earning some pennies. In addition, with such deep rust as on the disc you are showing, only a g turning machine can remove it. kzbin.info/www/bejne/a6qVZIJsZ55ofK8

[@atlasgunther8947]

This is a big no brainer dohh for me as we could all do this without even removing the wheels along with making brake pads triple size ... f the brake pad companies planned obs.

[@kentworch]

Nice experiment, might be useful for removing light wear, but probably not the most effective for heavy wear. Probably not a good idea to take too much metal off the thickness either. I guess this is kinda a hack for someone to resurface a rotor at home without access to a lathe to avoid having to pay a shop to turn them or buying new ones. This seems like something I would do, but would definitely measure the thickness afterward to ensure it's even and not to thin. Give them a 2nd like without having to pay a shop to turn them. I would definitely always turn them myself if I had my own lathe, unfortunately I don't, and I can't take my own stuff to use the lathe I work on at the machine shop.

[@weegaz22]

I've only ever skimmed truck stuff, usually cos their more expensive to replace, car stuff i've always replaced with new cos its not worth the mechanics time to setup up a disc lathe when he can replace it for 20-30 quid a disc.

[@Graciashauf]

Dial indicator would have been nice to check TIR

[@cheweh842]

@0:39 what poem is he referencing? Sorry I'm not that educated in Russian literature D:

[@vincentas1]

I think it's a joke, no poem has any of those items

[@JJSmith1100]

I have a question. What does it matter if there are grooves worn in the disc? Once the pads wear into the grooves the surface area increases and braking power should actually improve.

[@stevo184]

Don't be silly.

[@JJSmith1100]

@@stevo184 Please explain.

[@DogSpeak]

@@JJSmith1100 Technically, there would be more surface area, so yeah. I'll do just pads a few times before I bother with the rotors. Pads are cheap and easy so I dont mind having to replace them a little more often.

[@victory2115]

Remember there’s a minimum thickness recommended, if they’re too thin they’ll overheat and warp. 🚙

[@Louis2282]

So ! No problem in a russian winter then

[@williamkerr8307]

Not used this method for decades. Todays rotors seem to wear out quicker than the pads : If you get your car serviced at ford agents. Can't remember the last time I had disks resurfaced.

[@Skoog.]

Use a anglegrinder instead. Done that many times , but it only takes about 5 min. You do it the same way , start the engine and slowly start grinding. Its easy to get it smoth.

[@volkswagenation]

Done it too and it works great. A flap disc polish makes them shiny

[@kennethanway7979]

I once used a sanding block with 90 grit to remove heavy rust scale on a rotor on a beater mazda truck. The brakes were pulsating badly before, but the sanding actually worked! Drove the truck for a few years with no brake issues at all! Only got rid of it, because it was a mosquito fogger!

[@EZ-D-FIANT]

What the frail is a mosquito fogger?

[@Critical_Stinking]

If you don't know what a mosquito fogger is, you've never lived.

[@gearylhrig1512]

It burns a lot of oil

[@outseeker]

now i'm wondering can you design a tool that bolts onto caliper mounts, that you can use to fully cut back/straighten rotors while on the vehicle? :)

[@chuckbailey6835]

I woulda been afraid them. Stones would have broken with out puting wood between the clamp

[@twocvbloke]

You'd save time with an angle grinder with a flap disc fitted, that's for sure... :P

[@The_Slavstralian]

Those little blocks are for sharpening knives. They are not really meant for heavy grinding. cool that they work after the heavy duty blocks you guys made to polish up the final product though. would be great in a pinch for sure.

[@DieGottesliebe]

Lathe do this cleaner, better, quicker, safer, cheaper, more reliable ...

[@johnjelinek-g7b]

Ah, the Flintstones on car brake lathe system . lol hahaha, Nice high performance brake machining method there Vlad . lol :)

[@dillonjames-so5cz]

Took way longer than just doing it the right way lol 😆

[@shawbros]

Ask your mechanic to do it this way.

[@mahmoodali-dz3qq]

Experiment is good but wasting time that is not proper way to good job and getting better results

[@axle.australian.patriot]

I think I would rather just go throw them on a brake lathe :) Thinking about it, It probably wouldn't be hard to weld up a small lathe tool block to mount on the caliper bolt holes and cut each side running the engine.

[@donraptor6156]

Nope! Replace them every brake pad change. Rotors cost too much to have resurfaced.

[@axle.australian.patriot]

@@donraptor6156 "Rotors cost too much to have resurfaced" Yes/No. Machining a rotor is typical a fast and cheap process (far less expensive than a new rotor, but that's assuming the rotor is still serviceable. If there is any doubt about the rotor having damage it's better to just replace, or if the customers is pedantic and can afford it then better to just replace.

[@southern_merican]

u should do a reverse uno and make a brake rotor lined with brake pads, and make the normal "brake pad" out of 100%steel

[@dimitar4y]

now that's a garage54 idea if i've ever heard one.

[@southern_merican]

@@dimitar4y right ! hopefully they see it.

[@JJisMe1972]

Ok I just started watching this and the first issue is the groves are just going to ware into the stones. You would need to keep the stones moving or true them often.

[@BrianRRenfro]

If I have rotors that aren't grooved or warped, just needing new pads, I just run the car/truck and hold a D/A sander with 80 grit on it for a bit. Cleans them up and helps the pads seat. Never had a shake or shimmy or any issue after and saved me money taking them to be turned and getting back rotors that the idiot at the place destroyed and then I end up buying new ones anyway.

[@MrTuberguber]

I've done this myself. No need to get carried away, they' glaze up again whatever you do.

[@sergefog]

I did mine with an angle grinder, it worked super well and the car brakes lie it's new. I wonder why people care for doing this with sharpening stones, it does look like a lot of work to me.

[@lechkenassh9008]

damn make brake pads out of the thick circle stone then !!!

[@petej.8676]

Install a motor upside down..run drive..✌️

[@antoniovillanueva308]

Take a V6 and create an inverted V6. Be interesting to see how lubrication is handled.

[@phillipbartels2944]

How thin can brake rotors go before they fail to stop the vehicle? I’m a technician and I’ve allways bean curious on what the effects of rotors that have bean over machined will be. How thin can you go before things aren’t safe anymore? If you test it, just do it carefully.

[@the_kombinator]

They will always stop a car as long as there is material (barring it being like paper thin or something) even if you go well below the minimum thickness. The problem is heat dissipation; a thinner rotor won't have as much mass, and will warp quicker.

[@Fk8td]

When you had a block secured with one side with a plate to the caliper bracket it could help remove some of the warp because it will apply more pressure as the warp spot comes around. Method is still a waste because cutting rotors is cheap.

[@-A-Hybrid-Skunk-Productions-]

That is very impressive nonetheless though. I guess if you need a quick fix in a pinch and you are not near a brake shop or anything and you have some grinding stones. You could do a quick fix to get You to a brake shop it would work somewhat. But change the rotors as soon as you can.

[@2bisc]

My front brake pad worn out and the metal back plate carved the rotor surface with shallow grooves. I simply replaced with new brake pads and drove normally. At first, there were rubbing noise and pulsating feel when I applied the brake. After a few days, the rubbing noise and pulsating feel were gone. The brake pads eventually "grinded" the damaged rotor surface into a shinny (not flat though) surface.

[@SR-gt350]

Next use a angle grinder while turning the rotor have the disk running parrallel to the rotor

[@the_kombinator]

In the same direction?

[@SR-gt350]

@@the_kombinator side of grinder disk against rotor face as both rotate. Works really fast and prevents grooving of the disk surface.

[@maggs131]

2:14 not going to be Russian? Whatever are you then? Lol

[@swicked86]

I think two flat blocks of steel should be used first. Maybe install the pads backwards??? Then do the stone.

[@zcomputerwiz]

That results in a lot of heat and galling. Not sure what the effect would be with water though. Grinding stones definitely work

[@swicked86]

@@zcomputerwiz steel cuts iron with ease, the flat backs would pull down the very high ridge quickly. Then it would be easier to finish with a stone. I've actually machined a crank pulley with a screwdriver before, iron is extremely soft.

[@gasolinefumes]

I've used backwards pads on bad rotors. It made the rotors less bad, which was good enough for me!

[@abyssmanur3965]

I did this with a grinder on my kia Spectra, fitted new pads and the little kia became a braking monster.

[@BLKBRDD]

Problem is pretty clear in the Timelapse, the stone is bedding in the same as pads. The blocks need to be rotating at a different speed to average out the contours

[@marca5883]

Surely you used as much fuel as it would cost to buy new discs?

[@CommeradeZhukov]

These guys are so good that I subscribed to their Russian channel and consequentially learned Russian just so I could see their videos a week earlier than the English version😆

[@EPiCxPS3]

So what are you doing here? :=)

[@CommeradeZhukov]

@@EPiCxPS3 there were some words I didn't understand so I occasionally come back here for clarification lol

[@ocd2222]

by your name it looks like your mother tongue is already russian

[@nikkapubess3349]

Hell yeah, these guys don't play silly games, they come with the facts

[@abyssmanur3965]

Dont worry about the scratches, they add extra grab 😂

[@james10739]

I assume you need to constantly be moving the stone around because any introductions will stay

[@joshuacress5174]

I wouldve perfered subs. Ngl

[@juanbrenner1648]

E o vídeo da gambiarra é bem com comentário brasileiro kkkkkkkkkkk brasil é foda

[@Nickzkk]

KSKSKSKS pse

[@dosetti]

Glad to see this channel is alive and free of any politics. Nice experiment fellows.

[@nobodynoone2500]

If he talks politics he gets disappeared. Not much of a choice. Certainly not to be celebrated.

[@EZ-D-FIANT]

One cause of a warped rotor/disk is having a very hot rotor/disk and then stopping the car and leaving it, the caliper acts like a heat sink creating uneaven cooling, if you've been driving/breaking hard cool your brakes before shutting your car down and they are way less likely to warp.....👍👌👍

[@marcelosanches3397]

Brazilian technology...

[@ronaldmoravec2692]

I am very easy on brakes and never had a warped one sine I started keeping the hammer mechanics away from my car 50 years ago. Never had grooves either. When replacing pads, I scuffed surface with a 2x4 and 80 grit emory. Just place rotor on floor and go around evenly a few time. repeat back side.. This happens around 50 K miles.. When reinstalling wheels, I torque in pattern to 50, 65 85 foot in 3 steps. When sitting at a light if there was a heavy fast stop which rarely happens, let the car creep 1/4 wheel turn every 30 sec to get even cooling.

[@ИгорьЗалевский-ж7ю]

почему название канала на английском. Вам не подходит русский язык? Инагент.? НАТОвско -западный прихлебатель? Ютюб американский ресурс . Вы спонсор Америки и нато. Сообщим куда следует

[@custos3249]

That the narrator almost calls it "tictac" is the best part of this entire video 0:58

[@troy510]

I still don't understand why anyone is resurfacing rotors these days? New brakes and rotors are cheap! Especially for common vehicles. For a toyota corolla for example it's about $60 in the US for new rotors with pads for front or back and free shipping. If someone even has the equipment to resurface your rotors it's around $40 a rotor and you need to buy new brake pads anyways. It's a pointless thing or money grab just like nitrogen in your tires🤣. Don't be dumb!

[@zombiebiker5581]

You can’t straighten warped discs. People on here are getting warped mixed up with not fitted flushed or high spots only way to un-warp would be to heat/temper the metal (if it’s viable). If it’s warped just get new discs.So much bad advice on KZbin, third world fixes, yeah risk your life, passengers, other road users.

[@Tj1983coggin]

In the 80s Honda used a bolt on lathe that would resurface the rotors. Bolted though anchor mount on the knuckle

[@swampy6x659]

pads are not parallel . Pad surfaces are not machined both sides evenly /square . Surface might be flat but not correct finish . FAIL Meanwhile ,,, after using professional machine and earned twice the money . thickness, evenness and runout of course is all within spec LOL

[@Nookdashiddole]

Wouldn't it be better to buy new disks instead of wearing out sharpening stones?

[@shimxininahi8024]

Pretty backyard experiment quality using the stones, 1k of rubber bands for sound dampener, and carpentry clamp. The grooves are gone and the min thickness is questionable. Backyard Pass!

[@FJRyder]

If you took 2 whole grinding stones. With the hole in the middle. And figured out a way to allow the grinding stones to spin while the brake rotor rotated.

[@marmite2956]

Could've saved yourself a wet floor and alot of water by just submerging the disk in a bucket or something

[@thra5herxb12s]

Making the discs any thinner than they already are wont make them any safer. These shit repairs are fine for Eastern European Countries and India, but disc rotors are very very cheap to replace.

[@zeropointzero]

First off, doing it this way looks to be a waste of time with mediocre results. Just replace the rotor; it's not expensive. Otherwise, maybe I'd do it by holding an angle grinder to the rotor while it spins. Second, perhaps you could try those sanding blocks and the grinding wheel as brake pads, and see how they perform against proper brake pads for stopping distance.

[@tabbott429]

Waste of time.. How much are the stones? Rotors arent that expensive and you can have decent brakes just by replacing the pads to get you by BEFORE the rotors are badly grooved.

[@AT-wl9yq]

If you're looking for footage to make a new Jackass movie, start with this video. If anyone who calls themselves a mechanic doesn't immediately see the problem with doing it this way, should be ashamed of themselves. At the end of the video, at least they said you can't fix a warped rotor using this method. At least they got 1 thing right. But not only that, its very common for the thickness of the rotor to not be consistent. If the pads are worn a certain way, or not completely flush with the rotors, they won't make contact with the rotor with a uniform amount of pressure. Simply put, some areas of the brake pads are pushing harder on the rotors when the brakes are applied. Did anyone happen to notice there were some deeper gouges on the rotors, and the old pads were not completely flat and smooth? Why do you think that happens? As with a warping condition, the only way to correct a thickness condition is to use a lathe where the cutting head is fixed independently from the rotor. If you allow it to move with the imperfections of the brake rotor, the issue can't be fixed. So, now when you install your new pads, the caliper piston pushes the inside pad and the caliper housing pushes against the outside pad, and since you have new parts, the caliper/pad assembly will be setup to apply even pressure. However, since you never corrected the thickness of the rotor, you start out with misaligned brake pads right from day one. Not only that, if the customer has an accident with the car, try and convince the lawyers that you did nothing wrong. You're just asking for a problem. This is so incompetent your own insurance company may be able to get out of paying a claim on your behalf.

[@vinegar008]

My biggest concern are the stones on the brake caliper bracket. May be some old shims to protect it? For my car, brake discs are cheap (4 Hours of minimum wage for a pair), so I'll replace them rather than spending all these efforts. 😅

[@kittyfanatic1980]

I still would not trust it. New rotors are under 20 USD a piece for standard factory OEM style. The lathes they use to resurface rotors use an x pattern similar to when they are new. But again with the cost of new aftermarket rotors I just replace them when they need replacement if parts are available which is 99.9%of the time.

[@rickymoats3915]

I’ve always thought about using a angle grinder to try and fix a rotor they even make sandpaper discs for more detailed part after you get the grooves gone, get the Rotor spinning on the car and just lightly run the angle grinder up and down on it

[@volkswagenation]

I've done just that. It works in a pinch.

[@ryteulopki8069]

In Soviet Europe cost of fuel to perform this operation is greater than new set of NEW discs from Toyota ;) Unless you are bmw owner... then this will make sense :D

[@brandonroeder2461]

Bad idea from the start, honestly. Those stones are alot softer than that steel, so you basically end up removing material from the rotor VERY slowly while simultaneously making each groove deeper. You'll never plane it even.

[@handbananaistherapist642]

My super expensive rotors on my dodge ram 2500 are slightly warped. Gonna try this first.

[@Z-Ack]

Why couldnt you bolt a lathe tool rest on the caliper bolts and use a truing tool to turn down the rotor while still on the car? Ive used a bench grinder before with the front end jacked up in firsy gear to grind the tires back to round when they were all warped out of round/ cupped. Worked great.. a bit sketchy but so are a lot of things.. tires need to still have good meat left on em..

[@paulg444]

of course for the cost of the labor and the grinding stone you can buy 4 new rotors. One DIY solution would be to fabricate a bridge and replicae a machine shop using the caliper to mount the carbide bit.. Then just slowly take material off.

[@drtracer59]

The only problem with this, there are numbers on the back side of that rotor. Those numbers are the thickness that which the rotor is to be discarded. When you turn those rotors down, they will acquire rotor shake just that much quicker. If this is a business doing so, I'm sure your insurance agent would be more than happy with the shoddy work you do.

[@steventurner8428]

Some people look for the cheapest way of fixing brakes, sometimes it works but not often. Brake discs don't like to be too thin, they can shatter with pressure. Soon it will fail and you or another may be dead, or you could be holidaying in some prison for a long time.All for a little bit of money.

[@adrianvasile4683]

This is a very dangerous method. If you put too much pressure on the abrasive stones, you redirect the power to the other wheel and your car may jump forward even with the parking brake on. And to do so much work to save few bucks?

[@citizenzero6140]

Ok...off topic some but the Ass Car? Make it a locomotive type hybrid. Use a variable output gas or diesel generator to power some sort of traction drive motor. You can put the generator on the roof.

[@seetheforest]

How many liters of fuel did it take and how many hours? and gallons of water? How much does a new rotor cost?🤔

[@RenoBusdriver]

Guess if you had no lathe it would work. I’ll spend my 25 bucks at O’Reillys to have my drums and rotors resurfaced

[@adenlove9207]

It's not practical to waste money unnecessarily taking time for surfacing the rotors and wasting fuel to keep the car running and oil stones damages ,we believe the cost for surfacing the rotors in Machine Shop shall not exceed $20 each and we must consider the safe rotors thickness tolerance be reminded that the cost for new rotors is $40 each ,

[@stvargas69]

This is a ridiculous idea. You are polishing a surface meant to grab. Why not just take them to get turned? If you are so cheap that you are willing g to risk your life & the life of others, God help you