Notices
Series I Tech Garage The place to discuss anything technical about the RX-8 that doesn't fit into any of the categories below.

Do I really need to change brake rotors together with pads?

Thread Tools
 
Rate Thread
 
Old Nov 1, 2008 | 04:20 PM
  #26  
restiller's Avatar
sofa king
 
Joined: Apr 2007
Posts: 292
Likes: 0
From: Great America, IL
So I was wondering if I got ripped off at first...

I took my car in with new OEM rear brake pads in a box and asked them to replace my old ones (in addition to getting my snow tires mounted and balanced). The writer suggested that I get my rotors resurfaced, so I said sure. It cost me $150 for the rear axle brake job. Later, I'm almost home and I realized that for that kind of money I might as well have gotten new rotors instead! The last time I bought rotors for my old car ('91 mr2 turbo) they were about $20 each at NAPA. I go to finishlineperformance to check out the price and the were $109 each.

So here's my question:
What is our brake rotors made of that makes them so damn expensive?
Reply
Old Nov 1, 2008 | 04:49 PM
  #27  
I8U's Avatar
I8U
Registered
iTrader: (1)
 
Joined: May 2006
Posts: 1,934
Likes: 0
From: Carolina Beach, NC
^2006 Galaxy Gray Shinka? I thought in 06 Shinka's only came in Copper Red Mica?
Reply
Old Nov 1, 2008 | 05:11 PM
  #28  
restiller's Avatar
sofa king
 
Joined: Apr 2007
Posts: 292
Likes: 0
From: Great America, IL
nope. shinkas became their own trim level in 06. not 100% sure if it was available for all colors.
Reply
Old Nov 1, 2008 | 10:58 PM
  #29  
newguy's Avatar
zoom fuckin zoom
 
Joined: Sep 2008
Posts: 386
Likes: 0
From: PA, USA
change the pads yourself for $50 AND THEN SEE IF YU NEED ROTORS FROM THERE
Reply
Old Nov 1, 2008 | 11:18 PM
  #30  
ken-x8's Avatar
Registered
 
Joined: Aug 2006
Posts: 5,027
Likes: 5
From: Northern Virginia
Originally Posted by newguy
change the pads yourself for $50 AND THEN SEE IF YU NEED ROTORS FROM THERE
Ummm...and take everything apart again?

You can tell if you need to do anything about the rotors the first time around:

o If there's a shimmy when you step on the brakes, the rotors need to be turned or replaced.

o If there are scores in the rotor, it needs to be resurfaced. As far as whether there's enough metal left - a machine shop will measure the rotor with a micrometer that has a point that they'll put into the deepest groove. They'll know before doing anything whether it can be turned.

If the old rotors are still good, you need to go over them with emery cloth as part of the pad replacement.

Ken
Reply
Old Nov 1, 2008 | 11:55 PM
  #31  
restiller's Avatar
sofa king
 
Joined: Apr 2007
Posts: 292
Likes: 0
From: Great America, IL
in a way i did get ripped off then. no shimmy in the brakes and i never went metal-to-metal with the pads. what sold me was that the writer suggested the how resurfacing would "remove the glaze and rust" from the rotors and how i shouldn't use new pads on a glazed rotor. OK i guess...

this is the first new car i've owned and if i had done the brakes myself, i honestly would have left the rotors alone. i no longer have the real estate or warm weather to do my own brakes, but i was willing to pay for the price of laziness. i just didn't expect the total to be that steep.

but really. $109 for a new rotor?
Reply
Old Nov 2, 2008 | 01:22 AM
  #32  
nycgps's Avatar
Out of NYC
iTrader: (1)
 
Joined: Jun 2005
Posts: 19,881
Likes: 36
From: Planet Earth
u did got ripped off, big time.

Just dont go back anymore except for warranty work (if u still have any)
Reply
Old Nov 2, 2008 | 01:50 PM
  #33  
ken-x8's Avatar
Registered
 
Joined: Aug 2006
Posts: 5,027
Likes: 5
From: Northern Virginia
but really. $109 for a new rotor?
I think that's a consequence of having a low-production interesting car.

Back when they put asbestos in brake shoes, replacing rotors was relatively rare and they were expensive - like that $109. When asbestos came out, rotors started to wear more. They were now a volume wear item, third parties came in, and they got into the $30 to $40 price range.

Then China came along. The last set of rotors I bought for my Accord were made in China, and I think were $15 apiece.

One of those things we have to live with - after market for this car is performance stuff, not economy.

If it's just a matter of glaze, all that's needed is emery cloth. Which you need to do with a new rotor anyway, after using solvent to clean the oil off.

Ken
Reply
Old Nov 2, 2008 | 04:41 PM
  #34  
kersh4w's Avatar
Hit & Run Magnet
iTrader: (3)
 
Joined: May 2007
Posts: 6,690
Likes: 3
From: DC Area
glaze?

what about this excellent way of taking off anything thats on the rotor.

hitting the brakes hard from 60mph.

i guess i just dont get it. rotors get a little rusty when the car sits for a few days and it rains. they get back to pure shiny as soon as you take the car out for a drive and hit the brakes once.
Reply
Old Nov 5, 2008 | 05:09 AM
  #35  
Potentiated's Avatar
Banned
 
Joined: Oct 2003
Posts: 203
Likes: 0
From: Los Angeles
You should not have gotten the new rotors. Do what newguy said above. Store the rotors for now. Put the brake pads on yourself, then bed in the pads properly (do a search online for a bedding-in procedure), and see if there is any wobbling from the old rotors. If not, you're fine.

I'm on my 3rd set of OEM front pads (i.e., replaced twice) and 2nd set of OEM rear pads. I remember way back then when the dealership tried to get me all paranoid about getting new rotors at the same time. I'm way past that now. I have absolutely no wobble and everything is just fine. Even added brake fluid and bleeded my brakes by myself when things got spongy and brake pedal travel got too long.

Obviously, if and when the braking creates wobbling, at that time I'll get new rotors. Not before.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
blainezoomzoomrx8
New Member Forum
24
Sep 9, 2017 08:29 PM
seb16
Canada For Sale/Wanted
4
Sep 15, 2016 12:20 PM
jay_tibo
Series I Aftermarket Performance Modifications
22
Sep 13, 2016 08:10 PM
Zank300
New Member Forum
8
Aug 26, 2015 07:40 PM
Kahl
RX-8 Parts For Sale/Wanted
5
Aug 20, 2015 11:49 PM



You have already rated this thread Rating: Thread Rating: 0 votes,  average.


All times are GMT -5. The time now is 08:51 AM.