How To Turn / Cut A Rotor on a Brake Lathe Machine
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- เผยแพร่เมื่อ 15 ก.ค. 2024
- This video will show you the basics on how to turn and cut a brake rotor on a brake lathe machine. My local parts retailer turns rotors for $10 a rotor. Two Sundays in a row, he had no one available who knew how to turn rotors, didn't have time to turn them himself and the last person who attempted to turn the pair I brought in ruined them. I asked him to let me use the machine since I had experience turning rotors (but on a different machine). He said okay but if I messed up, my tough luck. Took a few minutes to figure out how to use this particular machine (Bosch) and then got to work.
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Why turn rotors?
* Smoother Braking Action
* Less heat generated when compared to warped rotors
* Increased life of the brake pads
* Eliminates brake pulsation (steering wheel and seat vibration)
Always check that the thickness of the rotors are within specifications before turning them. Replace the rotors if below specs.
Very informative, thanks for the video 👍🏼
You bet!
It's been years since I done it this way...The shop next to me lets me borrow theirs.. It mounts right to the vehicle..Does a nice cross hatch. Pain to setup though...
To save on my labor time for the customer, I sometimes recommend they replace their rotors with a name brand corrosion resistant rotors.
Excellent video.
Glad you liked it!
I’m having this done to my rotors as I watch this video haha.
Good decision!
Just curious, good stuff man thanks.
You bet!
Well done
Thanks!
i appreciate your videos
My pleasure!
@@hardlymovingpro I noticed that when you pulled it out, you could still see the ring on both sides where you first determined the cut depth. Does that mean that you should have machined it a little more the second time. Was it a small enough groove that it would not be worth worrying about? I am possibly getting a job at a machine shop and was just wondering.
@@xenosaga2286 That's not unusual and won't impact performance. The key is to shave down the peaks to prevent new pad vibration during braking.
@@hardlymovingpro good to know. Thanks for taking the time to reply.
If You have an OEM rotors and it needs 1st time brake job this method is excellent
You're right.. OEM rotors are high quality.
@@hardlymovingpro yes sir and some oem rotors are expensive
Raybestos, Wagner and Centric make excellent quality brake parts as good or better than OEM.
Two new aftermarket front rotors from Autozone cost me $150 . Would have been good if I could find someone to turn my old rotors to save some money.
Oreillys will for around $15 a rotor
quick question, if i have pulsation in the brake(assumiing rotor is warped) can turning the rotor bring it back to shape or get new one. I know new one is cheap as well, but wondering if turning can help.
Yes ... resurfacing the rotor (if the wear is not too bad), will eliminate the brake pulsation ... guaranteed! You can try bringing the rotors to your local Oreilly's Auto Parts store for resurfacing. They charge around $10 a rotor. Put on some good quality brake pads to complete the service. Do not re-use the old pads.
@@hardlymovingpro I took my rear rotors to Oriley’s and come to find out they told me they were both warped? The Assistant Manager checked the specs before hand and went ahead and proceed with the job. Now both my rotors are damaged due to their screw ups! 😡😡😡
should I buy the new rotors or resurface the OEM rotors. new one cost about $150 for all 4 , resurfacing cost about $60. is there any advantage of resurfacing over buying new one apart from cost savings.
OEM rotors are generally better than replacement rotors from your local auto retailer. If the rotors aren't that worn down (measured by a dial caliper), stick with the OEM's.
I've never seen anyone actually use that original wrench or the vibration strap. I've watched hundreds of rotors being turned in 4 years now
The strap help reduce vibration during the cutting process. Used it all the time when working at a dealership.
Is it safe to remove material from the outside edge of the rotor using this method? I need to make some 330mm diameter rotors measure 328mm, could I safely remove material from the edge? Or would the air vanes make it difficult?
You can try but you'd have to shave a little at a time or the cutting bit will break off.
@@hardlymovingpro thanks for the quick reply, you think a machine shop would be willing to try? Or will they say no because of the risk of snapping their tool :(?
@@jongillies4871 u dont know untill u try
Yai konsa bit ismai laga hua ha
Pretty good video but you should always take equal cuts on either side so you should have did four marks on both sides. You also should clean the face of the rotor where the Hub mounts to and where the wheel mounts to. Clean all that rust off of that can throw your rotor off when you mount it up
Thanks for sharing and for the tips!
Is the brown color caused by excessive heat or is it normal wear and tear?
Corrosion / rust
Can you turn the rotors by yourself at home on a 2013 Chevy Sonic
Need to turn the rotors on a 2000 Chevy Sonic can I do it at home
Nope
How long would a turned rotor last for, would it depend on how worn it is? Or does turning a rotor last a specific amount of miles.
If the rotor's measured thickness is too thin before it is turned, it get's discarded. No mileage specs.
@@hardlymovingpro I have a wide body scat pack 392 with the brembos and the rotors at like 1k each do you think it’s a good idea to do this to the current ones or just play it safe and get them new?
@@6.2bandz if their slotted or holed rotors get new ones. Most shops won't turn them because the cutting blades break.
Gouge is still there from when you did a test cut
Good observation. Won't hurt anything.
why don't shops do this anymore?
Convenience of getting a new rotor at the customer's expense?
🤔🏁👀NEVER cut ANY brake rotor OVER 2,000 or that will break a blade AlSO THAT shiny spot YOU was talking ABOUT is because that brake rotor is Warped you might get to cut ANY brake rotor a number of different time's to get ANY warp OUT of ANY brake rotor ALWAYS make sure ANY brake rotor gets a real slow cut ONLY on ANY last cut. I REALLY DO KNOW I AM a REAL certified ASE Master Auto Mechanic or technician . WITH OVER 60 year's of REAL experience .🏁🏁👍
Thanks for sharing!
Before cutting, why not center the rotor in the machine? You can see it's not centered. Maybe it's all the rust throwing off the view?
It's centered.
It appears that rotor has seen some shit. I saw the difference too.
S talk about the elephant in the room have y'all priced a can of wd-40 prices are getting outrageous
There's other competing penetrating oils.
So sad society now wants u to replace tour rotors, such a waist north America does.
It's a part that wears out with use.
We always face the disks before getting a replacement. after 3,4 faces the disk will be too thin to sustain the break pressure.