Join Early Retirement Today
Reply
 
Thread Tools Search this Thread Display Modes
Brake Rotors
Old 01-21-2019, 12:24 PM   #1
Recycles dryer sheets
Popeye's Avatar
 
Join Date: Sep 2016
Posts: 125
Brake Rotors

Is it just me, or do shops always want to give you new rotors with every brake job now? When I did my own, I almost never changed out the rotors. Just clean up or resurface with a .005 cut and good to go.
__________________

Popeye is offline   Reply With Quote
Join the #1 Early Retirement and Financial Independence Forum Today - It's Totally Free!

Are you planning to be financially independent as early as possible so you can live life on your own terms? Discuss successful investing strategies, asset allocation models, tax strategies and other related topics in our online forum community. Our members range from young folks just starting their journey to financial independence, military retirees and even multimillionaires. No matter where you fit in you'll find that Early-Retirement.org is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with our members, see fewer ads, upload photographs, create a retirement blog, send private messages and so much, much more!

Old 01-21-2019, 12:33 PM   #2
Thinks s/he gets paid by the post
Just_Steve's Avatar
 
Join Date: Apr 2016
Location: Dutchess County
Posts: 1,278
Rotors are so inexpensive and made from cheap metal might as well change them. I always find my fronts warped to some extent.
__________________

Just_Steve is offline   Reply With Quote
Old 01-21-2019, 12:36 PM   #3
Thinks s/he gets paid by the post
Jerry1's Avatar
 
Join Date: Nov 2014
Posts: 2,360
Every time I've got a brake job in the last couple decades, they replace the rotors. I think they are so cheap these days (both in cost and quality of material) that it's just better to replace them unless you buy a high end third party rotor. A long time ago when I asked, the guy said if he turned them, there wouldn't be enough material left for them to be in specifications. Really? I think they just don't want to waste the time turning them, plus, he was probably right that they would be thin and there'd be added risk of them warping.
__________________
Every day when I open my eyes now it feels like a Saturday - David Gray
Jerry1 is offline   Reply With Quote
Old 01-21-2019, 12:39 PM   #4
Full time employment: Posting here.
davebarnes's Avatar
 
Join Date: Dec 2015
Location: Berkeley, Denver, CO, USA
Posts: 664
Ever since they got rid of asbestos in brake pads, the recommendation is to replace both pads and rotors.
__________________
Dave Barnes
Old (70.7) Fart Nerd
AA 72/22/5, WR=3.6%, 91.6% retired, still working 1/2ish hrs/day
davebarnes is offline   Reply With Quote
Old 01-21-2019, 01:02 PM   #5
Recycles dryer sheets
Popeye's Avatar
 
Join Date: Sep 2016
Posts: 125
I guess it doesn’t help when they use the air gun to tighten the lug nuts.
I would think the rear brake rotors might survive once in a while unless those are made even thinner to begin with.
Popeye is offline   Reply With Quote
Old 01-21-2019, 01:03 PM   #6
Recycles dryer sheets
Popeye's Avatar
 
Join Date: Sep 2016
Posts: 125
Quote:
Originally Posted by Jerry1 View Post
Every time I've got a brake job in the last couple decades, they replace the rotors. I think they are so cheap these days (both in cost and quality of material) that it's just better to replace them unless you buy a high end third party rotor. A long time ago when I asked, the guy said if he turned them, there wouldn't be enough material left for them to be in specifications. Really? I think they just don't want to waste the time turning them, plus, he was probably right that they would be thin and there'd be added risk of them warping.
I wonder if anyone even has the machine to turn them on anymore.
Popeye is offline   Reply With Quote
Old 01-21-2019, 01:20 PM   #7
Give me a museum and I'll fill it. (Picasso)
Give me a forum ...
MRG's Avatar
 
Join Date: Apr 2013
Posts: 7,990
Quote:
Originally Posted by Jerry1 View Post
Every time I've got a brake job in the last couple decades, they replace the rotors. I think they are so cheap these days (both in cost and quality of material) that it's just better to replace them unless you buy a high end third party rotor. A long time ago when I asked, the guy said if he turned them, there wouldn't be enough material left for them to be in specifications. Really? I think they just don't want to waste the time turning them, plus, he was probably right that they would be thin and there'd be added risk of them warping.
I think there was a technology change. In 76 I ran auto parts, picked up a million of them to be turned and returned. I believe at some time they became cheaper to replace and also became thinner(egg, chicken?) as nobody particularly liked turning them. From the mechanics side they had equipment tied up waiting for a third party, who may be queued. Sure some shops had the equipment, but it wasn't cheap(at least back then).
MRG is offline   Reply With Quote
Old 01-21-2019, 02:04 PM   #8
Give me a museum and I'll fill it. (Picasso)
Give me a forum ...
travelover's Avatar
 
Join Date: Mar 2007
Posts: 11,425
Quote:
Originally Posted by MRG View Post
I think there was a technology change. In 76 I ran auto parts, picked up a million of them to be turned and returned. I believe at some time they became cheaper to replace and also became thinner(egg, chicken?) as nobody particularly liked turning them. From the mechanics side they had equipment tied up waiting for a third party, who may be queued. Sure some shops had the equipment, but it wasn't cheap(at least back then).

This. Parts got cheaper, labor got more expensive. My only gripe is the markup on the parts by the shops. Check Rock Auto for the parts prices versus what the shop charges you if you want a good rant topic.
__________________
Yes, I have achieved work / life balance.
travelover is offline   Reply With Quote
Old 01-21-2019, 02:34 PM   #9
Thinks s/he gets paid by the post
 
Join Date: Aug 2004
Location: Laurel, MD
Posts: 4,227
Agree that the parts are cheaper (e.g. thinner, wear faster) and the replace vs. repair mindset has taken hold. I have a hobby car which is a 1988 model and I try to keep it as original as possible. I did the brakes myself and went from shop to shop to shop trying to find someone to turn the rotors. I got a lot of disgusted looks for not accepting a new set. I had mic'd them so I knew they had enough metal to be turned. I finally stopped at a local Midas shop and the service manager said she only had one tech that knew how to use the brake lathe and if I left them she would have him take a look when he came in and had time. Probably an old timer! It took about 5 days to get them back and the tech wanted meet me when I came to pick them up. It was about $40 to turn them so still cheaper than replacing.
__________________
...with no reasonable expectation for ER, I'm just here auditing the AP class.Retired 8/1/15.
jazz4cash is offline   Reply With Quote
Old 01-21-2019, 03:03 PM   #10
Thinks s/he gets paid by the post
38Chevy454's Avatar
 
Join Date: Sep 2013
Location: Cincinnati, OH
Posts: 2,183
I think as stated the lower cost of the rotors is a big factor. Plus a shop can do a brake job quicker by just replacing rotors with new vs waiting and turning the old rotors. The shop also makes money on the new parts, their price is much less than the price you pay on the bill. So in the end, no shop wants to turn rotors.
__________________
The advice we're giving you is invaluable, that's why it's free
Experience is a good teacher, but the tuition can get expensive real fast

Semi-Retired 7/1/16: working part-time (60%) for now [4/24/17 changed to 80%]
Retired Aug 2, 2017; age 53
38Chevy454 is offline   Reply With Quote
Old 01-21-2019, 03:07 PM   #11
Give me a museum and I'll fill it. (Picasso)
Give me a forum ...
MRG's Avatar
 
Join Date: Apr 2013
Posts: 7,990
Quote:
Originally Posted by 38Chevy454 View Post
I think as stated the lower cost of the rotors is a big factor. Plus a shop can do a brake job quicker by just replacing rotors with new vs waiting and turning the old rotors. The shop also makes money on the new parts, their price is much less than the price you pay on the bill. So in the end, no shop wants to turn rotors.
Ding ding. They sure do make money on new parts. When I did that job, everyone doubled the price of the goods, every time they were bought/sold.
MRG is offline   Reply With Quote
Old 01-21-2019, 04:05 PM   #12
Dryer sheet aficionado
 
Join Date: Jan 2012
Location: Northern Ireland
Posts: 34
Why change ?
If they are warped - change
If they are below minimum thickness - change
resurface ... naah , pads will soon bed in
otherwise (for example : step to disc (rotor in American speak) outer edge) - fit new pads and carry on , but be aware things may take a little while to bed in. I don't quite buy the "they are cheap so change them " argument ... change on the basis of NEED.
Cortina is online now   Reply With Quote
Old 01-21-2019, 04:19 PM   #13
Administrator
Gumby's Avatar
 
Join Date: Apr 2006
Posts: 11,677
Quote:
Originally Posted by Cortina View Post
Why change ?
If they are warped - change
If they are below minimum thickness - change
resurface ... naah , pads will soon bed in
otherwise (for example : step to disc (rotor in American speak) outer edge) - fit new pads and carry on , but be aware things may take a little while to bed in. I don't quite buy the "they are cheap so change them " argument ... change on the basis of NEED.
Quite right. I install new rotors only when they go below the minimum specified thickness (haven't had a warped one yet). I order the new rotors online and replace them myself. It's not difficult. But then I do virtually all my own auto maintenance and repairs.
__________________
Living an analog life in the Digital Age.
Gumby is offline   Reply With Quote
Old 01-21-2019, 07:54 PM   #14
Give me a museum and I'll fill it. (Picasso)
Give me a forum ...
travelover's Avatar
 
Join Date: Mar 2007
Posts: 11,425
Quote:
Originally Posted by Gumby View Post
Quite right. I install new rotors only when they go below the minimum specified thickness (haven't had a warped one yet). ......
Technically, they usually don't actually warp. They develop disc thickness variation (DTV) from the pads rubbing every so lightly over all those miles. You can measure it of course, but usually you'll know that the DTV is excessive by how much the pedal pulsates when you brake. I normally don't do anything to the rotors if the pads are just worn but there is no vibration when braking.
__________________
Yes, I have achieved work / life balance.
travelover is offline   Reply With Quote
Old 01-21-2019, 07:59 PM   #15
Thinks s/he gets paid by the post
Lakewood90712's Avatar
 
Join Date: Jul 2005
Posts: 1,940
Quote:
Originally Posted by Gumby View Post
Quite right. I install new rotors only when they go below the minimum specified thickness (haven't had a warped one yet). I order the new rotors online and replace them myself. It's not difficult. But then I do virtually all my own auto maintenance and repairs.
Me too.

I used to let the shops turn on every pad change when I was busy before retirement. Now retired, went back to doing own minor maintenance, in 90K miles 2 sets of front pads, one set of rear.

Using the expensive OEM pads, about 4 hours of my labor total for the 3 brake jobs., has saved about $600 in shop charges. Rotors, still in spec on thickness , not warped. I spent a little over an hour on each pad change, a shop would be at least twice as fast. So the shop would be getting $300 hour for actual labor, and 50% markup on parts too.
Lakewood90712 is offline   Reply With Quote
Old 01-22-2019, 04:30 AM   #16
Thinks s/he gets paid by the post
 
Join Date: Sep 2014
Location: Grapetown
Posts: 1,705
Some vehicles, like my Chevy Colorado, require you to pull front axle to replace rotors. Opens up can of worms bigly! The first time I did it I damaged the ABS sensor cable and wheel bearing.

A lot depends on the type of brake pad you choose. If you use a "platinum" quality pad, it is a harder, tougher pad and is much harder on rotors. If you use a "silver" quality, they are a much softer pad, easier on rotors, but you have to change the pads often That's the tradeoff.

Also, if you have the fancy, nickel /slotted/drilled rotors you may have different wear issues, but being a poor LBYM type, I have no experience with them.
Winemaker is offline   Reply With Quote
Old 01-22-2019, 05:47 AM   #17
Full time employment: Posting here.
 
Join Date: Jan 2010
Location: dubuque
Posts: 716
I just replace pads unless the rotors are really bad. brake pads are cheap and easy to install. some rotors can be a little tricky to replace, some not so bad. I have a 2012 prius that I replaced the pads all around and one rotor. the rotor was the problem it wore the brakes right down to iron because the rotor rusted from the inside. the other three rotors were good, but changed pads all the way around just to keep things even. 2006 silverado 4wd pickup. 53k miles have replaced the front pads 3 times, rotors once, back brake shoes once. chevy is the worse for front brake pad wear I have seen. it seems all the wear goes on the front pads, calipers poorly made and won/t release. prius 92k miles one set brake pads and one rotor. if you think about doing your own work, check out you tube for videos on what is involved.
frank is offline   Reply With Quote
Old 01-22-2019, 08:09 AM   #18
Full time employment: Posting here.
 
Join Date: Nov 2016
Location: Washington State
Posts: 747
Quote:
Originally Posted by Popeye View Post
Is it just me, or do shops always want to give you new rotors with every brake job now? When I did my own, I almost never changed out the rotors. Just clean up or resurface with a .005 cut and good to go.
I've always done my own brakes and very rarely change the rotors. If the rotors start to warp or wear unevenly you can usually feel it in the pedal when braking. In that case I'll replace the rotors the next time I replace pads. I have never had rotors turned, I wouldn't even know where to have that done, and wouldn't want to take the time to run to town and have it done. It's easier just to have a new set of rotors on hand while I have things apart.

We have always bought used cars that are 12-15 years old. I usually put new rotors on the first time I work on the brakes, but it's rarely needed after that.
mountainsoft is offline   Reply With Quote
Old 01-22-2019, 08:32 AM   #19
Full time employment: Posting here.
 
Join Date: Nov 2016
Location: Richards
Posts: 914
Kind of funny the better Rotors cheaper are from China , the more expensive and told to be the better ones are thinner and wear out soon
Breedlove is offline   Reply With Quote
Old 01-22-2019, 10:15 AM   #20
Give me a museum and I'll fill it. (Picasso)
Give me a forum ...
travelover's Avatar
 
Join Date: Mar 2007
Posts: 11,425
Quote:
Originally Posted by Breedlove View Post
Kind of funny the better Rotors cheaper are from China , the more expensive and told to be the better ones are thinner and wear out soon
I don't know that this is true. Certainly no name parts from China are cheaper.
__________________

__________________
Yes, I have achieved work / life balance.
travelover is offline   Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
2003 CRV EX rear brake issue - caliper or brake line? Dimsumkid Other topics 14 03-09-2011 02:47 PM
Windshield washer fluid in brake fluid reservoir KB Other topics 17 07-30-2009 05:47 PM
Patato, Patatoe, Gimme a Brake CuppaJoe Other topics 39 05-05-2008 12:51 PM

» Quick Links

 
All times are GMT -6. The time now is 01:50 AM.
 
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2019, vBulletin Solutions, Inc.