Go Back  Bike Forums > The Lounge > Foo
Reload this Page >

Brake drag -- normal?

Foo Off-Topic chit chat with no general subject.

Brake drag -- normal?

Old 01-04-10, 10:18 PM
  #1  
phantomcow2
la vache fantôme
Thread Starter
 
phantomcow2's Avatar
 
Join Date: Aug 2004
Location: NH
Posts: 6,266
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Brake drag -- normal?

I just replaced my first set of brakes, and changed pads for the first time. I haven't driven the car or anything, but I made an observation: After I apply the brakes, with the pedal completely released, the pads appear to be dragging against the rotor. It's not a serious amount of drag; I'm able to rotate the wheel pretty easily by hand, but it's noticeable compared to not having pads installed at all.

Is this normal? Should there be any drag present?
__________________
C://dos
C://dos.run
run.dos.run
phantomcow2 is offline  
Old 01-04-10, 10:23 PM
  #2  
mickey85
perpetually frazzled
 
mickey85's Avatar
 
Join Date: Sep 2008
Location: Linton, IN
Posts: 2,470

Bikes: 1977 Bridgestone Kabuki Super Speed; 1979 Raleigh Professional; 1983 Raleigh Rapide mixte; 1974 Peugeot UO-8; 1993 Univega Activa Trail; 1972 Raleigh Sports; 1967 Phillips; 1981 Schwinn World Tourist; 1976 Schwinn LeTour mixte; 1964 Western Flyer

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
All rotors have drag, but chances are you didn't back the rotor out enough. Give it 100 miles and then check it again. It'll realign itself. If it's easy to spin, there won't be any damage done to the car by driving it with a little bit of drag.
mickey85 is offline  
Old 01-05-10, 03:00 AM
  #3  
DannoXYZ 
Senior Member
 
DannoXYZ's Avatar
 
Join Date: Jul 2005
Location: Saratoga, CA
Posts: 11,739
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 101 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
The actual amount of brake-disc drag is minimal. Less than bearing-drag even. For a car weighing several thousand pounds, it's insignificant. Just that to the human hand, it feels like a lot.
DannoXYZ is offline  
Old 01-05-10, 08:50 AM
  #4  
mikeybikes
Senior Member
 
mikeybikes's Avatar
 
Join Date: May 2009
Location: Edgewater, CO
Posts: 3,214

Bikes: Tons

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
You actually want the pads to drag just an ever small minute amount. You're probably fine.

You greased the caliper slides right?
mikeybikes is offline  
Old 01-05-10, 12:48 PM
  #5  
phantomcow2
la vache fantôme
Thread Starter
 
phantomcow2's Avatar
 
Join Date: Aug 2004
Location: NH
Posts: 6,266
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Yes I greased the caliper slide. I kind of figured the drag would be insignificant to the engine, but wanted to be sure the extra heat wouldn't be significant also. I drove the car around the neighborhood, not exceeding 30mph, and it felt fine. Stopping power was normal and there was no shuddering. I guess I'll try and break them in (no pun intended).

Anyways, the job is complete. If on the news you see a 93 accord whose brakes, wheel bearings, or ball joints have exploded, that's me!
__________________
C://dos
C://dos.run
run.dos.run
phantomcow2 is offline  
Old 01-05-10, 01:04 PM
  #6  
DannoXYZ 
Senior Member
 
DannoXYZ's Avatar
 
Join Date: Jul 2005
Location: Saratoga, CA
Posts: 11,739
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 101 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Good job! It's always so satisfying to complete a project.
DannoXYZ is offline  

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


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright © 2018 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.