G37 Coupe

Whats causing the rotor to warp?

Thread Tools
 
Search this Thread
 
Old Jul 28, 2022 | 12:11 PM
  #1  
crazyone's Avatar
crazyone
Thread Starter
Registered Member
5 Year Member
 
Joined: Jan 2017
Posts: 29
Likes: 0
Whats causing the rotor to warp?

Hi,
I bought a 2014 Infiniti Q60 Sport and i can't stand the brakes, they squeak every morning and cause an annoying wobble when braking from higher speeds. Rotors have got to go.
There's lots of life left on the stock brake pads so i wasn't planning on changing them, but wanted to check with the group here.
Could the stock pads be causing the rotors to warp? Or just lousy stock rotors.

Last edited by crazyone; Jul 28, 2022 at 12:24 PM.
Reply
Old Jul 28, 2022 | 12:33 PM
  #2  
dkmura's Avatar
dkmura
Registered Member
20 Year Member
Liked
Loved
 
Joined: Jan 2004
Posts: 747
Likes: 98
From: Aurora, CO
If the rotors have already been turned, or cut, there's less material to prevent warping. You didn't mention how many miles are on your car, or if any brake work has been done previously.
Reply
Old Jul 28, 2022 | 02:44 PM
  #3  
crazyone's Avatar
crazyone
Thread Starter
Registered Member
5 Year Member
 
Joined: Jan 2017
Posts: 29
Likes: 0
40,000miles
dealer said they resurfaced the rotors which made sense when i bought the car, after reading how people say they warp.
Not aware of any other brake work done to them.
Reply
Old Jul 28, 2022 | 06:23 PM
  #4  
Glenn2008's Avatar
Glenn2008
Registered Member
iTrader: (3)
 
Joined: Jan 2013
Posts: 585
Likes: 39
The OEM rotors were garbage. Get yourself some decent vented/slotted rotors and pads.
Reply
Old Jul 28, 2022 | 10:29 PM
  #5  
Muck_Man's Avatar
Muck_Man
Registered Member
5 Year Member
Liked
Loved
 
Joined: May 2020
Posts: 139
Likes: 59
From: Saskatchewan
Originally Posted by Glenn2008
The OEM rotors were garbage. Get yourself some decent vented/slotted rotors and pads.
agreed! Get some new rotors and pads and your brakes will feel new again.
Reply
Old Jul 29, 2022 | 06:24 AM
  #6  
stealthee's Avatar
stealthee
Registered Member
5 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 2016
Posts: 996
Likes: 201
From: SWPA
Rotors don't warp. They thumping feeling is caused by pad deposits left behind. It has nothing to do with the rotors themselves. Quality brake pads would help more than high end rotors.

The brake pad deposits are left behind because of overusing the brakes, and once heated leaving the pad in the same spot for too long.
Reply
Old Jul 29, 2022 | 10:57 AM
  #7  
BULL's Avatar
BULL
Moderador
5 Year Member
Liked
Loved
Community Favorite
 
Joined: Jun 2019
Posts: 2,626
Likes: 765
From: South Florida
Originally Posted by stealthee
Rotors don't warp. They thumping feeling is caused by pad deposits left behind. It has nothing to do with the rotors themselves. Quality brake pads would help more than high end rotors.

The brake pad deposits are left behind because of overusing the brakes, and once heated leaving the pad in the same spot for too long.
Close however just like any piece of iron it has the capacity to warp. What you get in most rotors is a combination of pad deposits and heat spots from holding the pad onto the hot rotor too long.

If this wasnt the case everytime you'd cut a rotor you would see the pad material come off when in fact what you see is a wobbly surface as you cut it.

By paying attention to the hub centeredness as you align it in the lath you compare the hub's roundness to that off the disc and you see there are differences depending on how bad the rotor is.

Reply
Old Jul 29, 2022 | 03:14 PM
  #8  
Rochester's Avatar
Rochester
Administrator
15 Year Member
Loved
Community Favorite
Top Answer: 1
iTrader: (9)
 
Joined: Nov 2010
Posts: 19,858
Likes: 5,148
From: Rochester, NY
https://www.girardford.com/blogs/903...s%20impossible.

Reply
Old Jul 29, 2022 | 03:37 PM
  #9  
crazyone's Avatar
crazyone
Thread Starter
Registered Member
5 Year Member
 
Joined: Jan 2017
Posts: 29
Likes: 0
Thanks for the replies.
Anyone know what the stock pads are?
Akebono Ceramic?
Reply
Old Jul 29, 2022 | 03:39 PM
  #10  
crazyone's Avatar
crazyone
Thread Starter
Registered Member
5 Year Member
 
Joined: Jan 2017
Posts: 29
Likes: 0
sounds like using the stock pads, even though they have lots of life is left, is a bad idea.
I was trying to save a little money.
Reply
Old Jul 29, 2022 | 03:59 PM
  #11  
stealthee's Avatar
stealthee
Registered Member
5 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 2016
Posts: 996
Likes: 201
From: SWPA
Originally Posted by BULL
Close however just like any piece of iron it has the capacity to warp. What you get in most rotors is a combination of pad deposits and heat spots from holding the pad onto the hot rotor too long.

If this wasnt the case everytime you'd cut a rotor you would see the pad material come off when in fact what you see is a wobbly surface as you cut it.

By paying attention to the hub centeredness as you align it in the lath you compare the hub's roundness to that off the disc and you see there are differences depending on how bad the rotor is.
There are tons of articles out there showing how rotors do not warp. You would never be able to get enough heat into them to cause actual warpage.
Reply
Old Jul 29, 2022 | 06:46 PM
  #12  
Muck_Man's Avatar
Muck_Man
Registered Member
5 Year Member
Liked
Loved
 
Joined: May 2020
Posts: 139
Likes: 59
From: Saskatchewan
Originally Posted by crazyone
sounds like using the stock pads, even though they have lots of life is left, is a bad idea.
I was trying to save a little money.
You could get your rotors turned on a lathe and put some new brake pads on, would probably be your cheapest option. Although I am not sure how much getting your rotors turned would cost. For a little extra money you could replace your pads and rotors and do the work yourself with some basic tools and know-how. Another 'cheap' option would be to replace the front pads and rotors since they do most of the braking anyway. Just depends on what your budget allows.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
SBG37
Brakes & Suspension
29
Mar 12, 2021 03:16 PM
khan_g37x_
Brakes & Suspension
19
Feb 5, 2017 11:51 PM
Dough1397
Brakes & Suspension
5
May 31, 2013 11:43 AM
vibrant_red_G37
Brakes & Suspension
4
Dec 28, 2012 09:01 PM




All times are GMT -4. The time now is 01:58 PM.