XK / XKR ( X150 ) 2006 - 2014

Steering wheel shake when braking?

Thread Tools
 
Search this Thread
 
Old May 30, 2021 | 04:25 PM
  #41  
kj07xk's Avatar
Veteran Member
10 Year Member
Liked
Loved
Community Favorite
Joined: Jan 2015
Posts: 5,323
Likes: 2,597
From: Naperville, Illinois USA
Default

I’d believe Cee Jay on it. Never seen warped rotors before, but see lots of Dodge Caravan rust buckets on the road, so gotta believe they’re not using highest quality materials in their products.
 
Reply
Old May 30, 2021 | 04:46 PM
  #42  
Cee Jay's Avatar
Veteran Member
10 Year Member
Liked
Loved
Community Favorite
Joined: Apr 2013
Posts: 11,906
Likes: 6,417
From: Kaysville, Utah, US
Default

"Warped" does not mean Deformed By Heat exclusively. Warped means Deformed. A 2x4 piece of lumber can be warped, and that does not occur by heat.
Any rotor that is deformed from original, by any means, is Warped. I don't care how it happened.
 
Reply
Old May 30, 2021 | 04:52 PM
  #43  
jahummer's Avatar
Veteran Member
15 Year Member
Liked
Loved
Community Favorite
Joined: Dec 2008
Posts: 6,460
Likes: 2,583
From: Florida
Default

Respectfully, wood warps from permeability and water. To warp a cast iron rotor without heat would require a multi-ton hydraulic press…and likely it would crack, not bend, without heat.
 
Reply
Old May 30, 2021 | 05:19 PM
  #44  
Cee Jay's Avatar
Veteran Member
10 Year Member
Liked
Loved
Community Favorite
Joined: Apr 2013
Posts: 11,906
Likes: 6,417
From: Kaysville, Utah, US
Default

Uh huh............
 
Reply
Old May 30, 2021 | 10:07 PM
  #45  
jahummer's Avatar
Veteran Member
15 Year Member
Liked
Loved
Community Favorite
Joined: Dec 2008
Posts: 6,460
Likes: 2,583
From: Florida
Default

Umm, did you even watch that video? It’s 15 minutes of a machine resurfacing a rotor which from what I could see in the time lapse bit spun perfectly true without and wobble (watch the vanes, if the rotor was warped, it would be hopping like a bent rim).

Uneven surface wear requiring resurfacing and warping are completely different things.

So going back to your semantics comment, if what you meant by warping was uneven surface wear then you didn’t mean to say you saw warped rotors, you saw uneven surface wear.
 
Reply
Old May 30, 2021 | 10:36 PM
  #46  
Cee Jay's Avatar
Veteran Member
10 Year Member
Liked
Loved
Community Favorite
Joined: Apr 2013
Posts: 11,906
Likes: 6,417
From: Kaysville, Utah, US
Default

"Warped" does not mean Deformed By Heat exclusively. Warped means Deformed. A 2x4 piece of lumber can be warped, and that does not occur by heat.
Any rotor that is deformed from original, by any means, is Warped. I don't care how it happened.

Warped is a condition, not a verb.

Evidently your brain is warped, since you can't understand that if a surface has deviated from a norm, regardless of the cause..... IT IS WARPED.
And oh gee, a mere (does calculations in his head, then just says a number anyway) 10/1,000ths (1/100) of an inch isn't "warped" because it isn't ENOUGH warped???

*sigh*
I guess some people cannot accept what words mean.

Or maybe, if something actually IS a thing, you refuse to accept it AS that thing because it doesn't meet your own personal narrowed definition OF a thing.
Cool.
It must be nice to be the High-All-Mighty-Decider of Things.
 
Reply
Old May 31, 2021 | 12:18 AM
  #47  
MarkyUK's Avatar
Veteran Member
Joined: Feb 2013
Posts: 1,628
Likes: 671
From: Somerset UK
Default

Why are we still discussing warped rotors when OP advises the shake was due to a buckled front wheel??

Some of you are like a dog with a bone...lol
 
Reply
Old Jun 11, 2021 | 02:31 AM
  #48  
GR8BR1T's Avatar
Junior Member
Joined: Jul 2016
Posts: 22
Likes: 23
From: Kyalami, Johannesburg
Default

Absolutely, If he has the Alcon brakes then there are "crescents" machined into the rotor faces that are specifically designed to re-face the pads each time you brake which increases their effectiveness by increasing the "bite" and prevent brake fade. The Alcon rotors are huge and dissipate heat very quickly. I have the same on my 09 Portfolio. I would seriously steer clear of having them refaced or "skimmed" as this would affect the efficiency of the rotor design. Try some hard braking (on a clear road) and I am sure the problem will disappear.

Good luck,

Andy
 
Reply
Old Jun 12, 2021 | 06:53 AM
  #49  
Stuart S's Avatar
Veteran Member
15 Year Member
Community Builder
Loved
Community Favorite
Joined: Aug 2010
Posts: 10,124
Likes: 7,127
From: Atlanta suburbs
Default

If you need new Alcon rotors, see this old thread:
Alcon Rotors Cheap!
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Daim
XJ XJ8 / XJR ( X308 )
11
Apr 23, 2021 12:18 PM
dmericas
MKI / MKII S type 240 340 & Daimler
1
Nov 24, 2016 09:23 AM
mechelement
XJ XJ8 / XJR ( X308 )
2
Jul 3, 2013 05:07 PM
datekho
XJ XJ6 / XJ8 / XJR ( X350 & X358 )
2
Jun 4, 2008 10:05 PM

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



All times are GMT -5. The time now is 04:08 PM.