Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help



Go Back   PeachParts Mercedes-Benz Forum > General Discussions > Off-Topic Discussion

Reply
 
LinkBack Thread Tools Display Modes
  #16  
Old 09-15-2012, 12:46 PM
TheDon's Avatar
Ghost of Diesels Past
 
Join Date: Oct 2005
Posts: 13,285
Quote:
Originally Posted by raymr View Post
I want to say it's not real. There would be no brake pad or backing left at all.
I've seen it before in the junkyard. Front rotors of last gen firebird/camaro looked like that. Car was in the junkyard due to serious front end damage. I wonder why. I'll have to do some digging around with my old phones

Reply With Quote
  #17  
Old 09-15-2012, 01:18 PM
Inna-propriate-da-vida
 
Join Date: May 2008
Posts: 1,969
It is simply impossible (anecdotal I've-seen-it-before evidence not withstanding) for a 1/8" thick brake pad to wear away over a 1/2" of brake rotor material.

Also, the erosion of the rotor is extremely uniform, no deeper gouges from the rivets in the pads or any other kind of uneven wear.

And the real clincher is the fact that the inside edge of the rotor has been turned as well, an area that the pad does not contact.

Not to say that cars have not had similar things inflicted on them, just that this is not what it is implied to be.
__________________
On some nights I still believe that a car with the fuel gauge on empty can run about fifty more miles if you have the right music very loud on the radio. - HST

1983 300SD - 305000
1984 Toyota Landcruiser - 190000
1994 GMC Jimmy - 203000

https://media.giphy.com/media/X3nnss8PAj5aU/giphy.gif
Reply With Quote
  #18  
Old 09-15-2012, 01:21 PM
Registered User
 
Join Date: May 2010
Posts: 77
Quote:
Originally Posted by cmbdiesel View Post
It is simply impossible (anecdotal I've-seen-it-before evidence not withstanding) for a 1/8" thick brake pad to wear away over a 1/2" of brake rotor material.

Also, the erosion of the rotor is extremely uniform, no deeper gouges from the rivets in the pads or any other kind of uneven wear.

And the real clincher is the fact that the inside edge of the rotor has been turned as well, an area that the pad does not contact.

Not to say that cars have not had similar things inflicted on them, just that this is not what it is implied to be.
What makes you think the caliper is installed and not resting in an uninstalled position? Did you see the link I posted. It can happen.
http://www.2carpros.com/articles/vehicle-grinding-noise
Reply With Quote
  #19  
Old 09-15-2012, 01:43 PM
Inna-propriate-da-vida
 
Join Date: May 2008
Posts: 1,969
Quote:
Originally Posted by MagnumPI View Post
What makes you think the caliper is installed and not resting in an uninstalled position? Did you see the link I posted. It can happen.
How to Repair Car Grinding Noises - 2CarPros
What makes you think that the rotor could possibly get worn on the inside shoulder?

Did you look at the link you posted?
Notice again in the original picture how evenly the rotor is worn, in contrast to the picture in your link.

I did not imply that this kind of thing cannot happen, in fact I believe my point was exactly the opposite. Just that the picture seems to be a set up.
__________________
On some nights I still believe that a car with the fuel gauge on empty can run about fifty more miles if you have the right music very loud on the radio. - HST

1983 300SD - 305000
1984 Toyota Landcruiser - 190000
1994 GMC Jimmy - 203000

https://media.giphy.com/media/X3nnss8PAj5aU/giphy.gif
Reply With Quote
  #20  
Old 09-15-2012, 02:26 PM
Registered User
 
Join Date: May 2010
Posts: 77
Quote:
Originally Posted by cmbdiesel View Post
What makes you think that the rotor could possibly get worn on the inside shoulder?

Did you look at the link you posted?
Notice again in the original picture how evenly the rotor is worn, in contrast to the picture in your link.

I did not imply that this kind of thing cannot happen, in fact I believe my point was exactly the opposite. Just that the picture seems to be a set up.
The original picture isn't evenly worn. Shoulder? where the backing plate rides against? I don't understand what you're trying to say. Of course it would make contact, it's just never supposed to get that close because the brake pad creates the clearance which would normally prevent the contact. And the first link shows both stages of wear. The original post shows an unevenly worn rotor, with a gouge cut into each 'fin' about 1/4 of the way down. And why wouldn't it be at least mostly even? The brake pad backing plate is flat after all...
Reply With Quote
  #21  
Old 09-15-2012, 04:38 PM
kmaysob's Avatar
Registered User
 
Join Date: Nov 2003
Location: mesa az
Posts: 1,673
Quote:
Originally Posted by MagnumPI View Post
The original picture isn't evenly worn. Shoulder? where the backing plate rides against? I don't understand what you're trying to say. Of course it would make contact, it's just never supposed to get that close because the brake pad creates the clearance which would normally prevent the contact. And the first link shows both stages of wear. The original post shows an unevenly worn rotor, with a gouge cut into each 'fin' about 1/4 of the way down. And why wouldn't it be at least mostly even? The brake pad backing plate is flat after all...
boy this is becoming an intelligent argument.
__________________
have no worries.....President Obama swears "If you like your gun, you can keep it
Reply With Quote
  #22  
Old 09-15-2012, 04:56 PM
Hatterasguy's Avatar
Zero
 
Join Date: Nov 2002
Location: Milford, CT
Posts: 19,318
I like when the disc breaks off the hat.
__________________
1999 SL500
1969 280SE
2023 Ram 1500
2007 Tiara 3200
Reply With Quote
  #23  
Old 09-15-2012, 11:21 PM
Registered User
 
Join Date: Mar 2006
Posts: 1,392
Quote:
Originally Posted by cmbdiesel View Post
It is simply impossible (anecdotal I've-seen-it-before evidence not withstanding) for a 1/8" thick brake pad to wear away over a 1/2" of brake rotor material.
hmmm brake rotor"cast iron", brake pad "hardened steel"
Reply With Quote
  #24  
Old 09-15-2012, 11:56 PM
Inna-propriate-da-vida
 
Join Date: May 2008
Posts: 1,969
Quote:
Originally Posted by catmandoo62 View Post
hmmm brake rotor"cast iron", brake pad "hardened steel"
Yes, MOTO, they are.

Maybe the rivets are "hardened steel" too....
__________________
On some nights I still believe that a car with the fuel gauge on empty can run about fifty more miles if you have the right music very loud on the radio. - HST

1983 300SD - 305000
1984 Toyota Landcruiser - 190000
1994 GMC Jimmy - 203000

https://media.giphy.com/media/X3nnss8PAj5aU/giphy.gif
Reply With Quote
  #25  
Old 09-16-2012, 02:05 AM
layback40's Avatar
Not Banned
 
Join Date: Nov 2009
Location: Victoria Australia - down under!!
Posts: 4,023
Quote:
Originally Posted by cmbdiesel View Post
Yes, MOTO, they are.

Maybe the rivets are "hardened steel" too....
The pads do not have rivets !
Who ever first mentioned them is just showing that they have very little knowledge of brake pads, probably only ever seen them on pictures on the internet.
__________________
Grumpy Old Diesel Owners Club group

I no longer question authority, I annoy authority. More effect, less effort....

1967 230-6 auto parts car. rust bucket.
1980 300D now parts car 800k miles
1984 300D 500k miles
1987 250td 160k miles English import
2001 jeep turbo diesel 130k miles
1998 jeep tdi ~ followed me home. Needs a turbo.
1968 Ford F750 truck. 6-354 diesel conversion.
Other toys ~J.D.,Cat & GM ~ mainly earth moving
Reply With Quote
  #26  
Old 09-16-2012, 08:44 AM
engatwork's Avatar
busy
 
Join Date: May 2000
Location: Soperton, Ga. USA
Posts: 13,635
I had a co-worker park beside me one time in an early 2000's front wheel drive Pontiac four door. It was noisy from the front. We pulled his wheel off and the front rotor looked just about like that. The solid disc was gone on one side. His stopping distances had increased a pretty good bit but I'm not too sure he noticed.
__________________
Jim
Reply With Quote
  #27  
Old 09-16-2012, 09:26 AM
Banned
 
Join Date: May 2002
Location: Blue Point, NY
Posts: 25,396
Quote:
Originally Posted by layback40 View Post
The pads do not have rivets !
Who ever first mentioned them is just showing that they have very little knowledge of brake pads, probably only ever seen them on pictures on the internet.


Brake Pads Rivet For Mercedes Benz
Reply With Quote
  #28  
Old 09-16-2012, 09:44 AM
G-Benz's Avatar
Razorback Soccer Dad
 
Join Date: Apr 2001
Location: Dallas/Fort-Worth
Posts: 5,711
There was a thread years ago in the ML forum about the same thing:



__________________
2009 ML350 (106K) - Family vehicle
2001 CLK430 Cabriolet (80K) - Wife's car
2005 BMW 645CI (138K) - My daily driver
2016 Mustang (32K) - Daughter's car
Reply With Quote
  #29  
Old 09-16-2012, 10:19 AM
Registered User
 
Join Date: Dec 2005
Posts: 2,423
My guess is the rotor gets punished abuse with no pad replacement ,the rotor gets scared ,once they finally do get replaced they have the rotors turned ,repeat.It was probably at that last bit of metal material left before the fins that the person turning these rotors refused and they just let them ride from then on out.A rotor isnt that expensive .
Reply With Quote
  #30  
Old 09-16-2012, 10:53 AM
Registered User
 
Join Date: Apr 2005
Location: Rockville MD
Posts: 833
So it is possible. I didn't think a car could be drivable like that. I guess the funny grinding noise becomes normal after a while.

__________________
1985 380SE Blue/Blue - 230,000 miles
2012 Subaru Forester 5-speed
2005 Toyota Sienna
2004 Chrysler Sebring convertible
1999 Toyota Tacoma
Reply With Quote
Reply

Bookmarks

Thread Tools
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 On
Trackbacks are On
Pingbacks are On
Refbacks are On




All times are GMT -4. The time now is 05:15 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2018 Pelican Parts, LLC - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page