RV.Net Open Roads Forum: Tech Issues: Bedding Brakes

RV Blog

  |  

RV Sales

  |  

Campgrounds

  |  

RV Parks

  |  

RV Club

  |  

RV Buyers Guide

  |  

Roadside Assistance

  |  

Extended Service Plan

  |  

RV Travel Assistance

  |  

RV Credit Card

  |  

RV Loans

Open Roads Forum Already a member? Login here.   If not, Register Today!  |  Help

Newest  |  Active  |  Popular  |  RVing FAQ Forum Rules  |  Forum Posting Help and Support  |  Contact  

Search:   Advanced Search

Search only in Tech Issues

Open Roads Forum  >  Tech Issues

 > Bedding Brakes

Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 
Page of 3  
Prev
Sponsored By:
RLS7201

Beautyful Downtown Gladstone, MO

Senior Member

Joined: 10/26/2002

View Profile


Offline
Posted: 10/10/22 11:25am Link  |  Quote  |  Print  |  Notify Moderator

Grit dog wrote:

Boy we gotta room full of know it all shade tree mechanics here…lol


And your qualifications are? GRIN

Richard


95 Bounder 32H F53
460/528 stroker
2013 CRV Toad
2 Segways in Toad
First brake job
1941 Hudson


Grit dog

Black Diamond, WA

Senior Member

Joined: 05/06/2013

View Profile


Offline
Posted: 10/10/22 12:32pm Link  |  Quote  |  Print  |  Notify Moderator

Chum lee wrote:

IMO, bedding new brake pads/rotors is a good practice but usually not necessary provided the technician who replaced the pads/rotors actually drives the vehicle a few hundred feet after servicing it.

For those who do not understand how disc/drum brakes work: In modern days, most brakes are self adjusting, but, do require the first initial few pumps to adjust themselves to their respective mating surfaces by filling the caliper pistons (with brake fluid) to the correct amount. The new wear surfaces are also initially very porous (irregularities) and may have contamination on them from the repair process.

The first driver may not be aware of this and be surprised when the first few pedal pumps go to the floor before they get any braking action. The pedal usually pumps up (the brakes adjust themselves) very quickly.

To get full braking action, it usually requires a few aggressive stops. That's what brake bedding does. Driving moderately will do the same thing after a few miles. IME, it's those who EXPECT new brakes to work perfectly the first time who end up rear ending someone.

Chum lee


What you're describing has literally nothing to do with bedding in new brakes...


2016 Ram 2500, MotorOps.ca EFIlive tuned, 5” turbo back, 6" lift on 37s
2017 Heartland Torque T29 - Sold.
Couple of Arctic Fox TCs - Sold

Mike134

Elgin, IL

Senior Member

Joined: 11/20/2019

View Profile


Offline
Posted: 10/10/22 02:52pm Link  |  Quote  |  Print  |  Notify Moderator

Grit dog wrote:

Boy we gotta room full of know it all shade tree mechanics here…lol


X2!!!

Safe travels and remember:

"I'm no expert but I play one on the internet"


2019 F150 4X4 1903 payload
2018 Adventurer 21RBS 7700 GVWR.

Chum lee

Albuquerque, NM

Senior Member

Joined: 08/03/2015

View Profile


Offline
Posted: 10/10/22 03:17pm Link  |  Quote  |  Print  |  Notify Moderator

Grit dog wrote:

Chum lee wrote:

IMO, bedding new brake pads/rotors is a good practice but usually not necessary provided the technician who replaced the pads/rotors actually drives the vehicle a few hundred feet after servicing it.

For those who do not understand how disc/drum brakes work: In modern days, most brakes are self adjusting, but, do require the first initial few pumps to adjust themselves to their respective mating surfaces by filling the caliper pistons (with brake fluid) to the correct amount. The new wear surfaces are also initially very porous (irregularities) and may have contamination on them from the repair process.

The first driver may not be aware of this and be surprised when the first few pedal pumps go to the floor before they get any braking action. The pedal usually pumps up (the brakes adjust themselves) very quickly.

To get full braking action, it usually requires a few aggressive stops. That's what brake bedding does. Driving moderately will do the same thing after a few miles. IME, it's those who EXPECT new brakes to work perfectly the first time who end up rear ending someone.

Chum lee


What you're describing has literally nothing to do with bedding in new brakes...


You are correct. For high performance brake bedding techniques, FOLLOW THE BRAKE BEDDING INSTRUCTIONS OF THE MANUFACTURER. In my initial statement, I said, "USUALLY." We're talking motorhomes here, not high performance/race cars. If you are putting cross drilled and/or slotted rotors with metallic, ceramic, or carbon fiber pads on your motorhome, then follow the bedding instructions of the manufacturer, if any. For run of the mill OEM pads and rotors on a motorhome, unless the manufacturer specifically says otherwise, I stand by what I said.

Chum lee

joshuajim

Mojave Desert

Senior Member

Joined: 04/29/2006

View Profile



Good Sam RV Club Member


Posted: 10/10/22 06:23pm Link  |  Quote  |  Print  |  Notify Moderator

What bedding the brakes does is to transfer a microscopic layer of brake material from the pad/shoe to the disc/drum surface. This is accomplished by “repeatedly” heating the brakes and letting them cool in a prescribed method as directed by the manufacturer. Greater friction is generated from brake material to brake material than from brake material to cast iron.

If you believe that you are more knowledgeable than the manufacturer, good luck.

It’s always done on race cars as braking is somewhat an important thing.


RVing since 1995.

Cummins12V98

on the road

Senior Member

Joined: 06/03/2012

View Profile


Offline
Posted: 10/11/22 09:40am Link  |  Quote  |  Print  |  Notify Moderator

Back in the "DAY" I would have my local NAPA "ARCH" or "ARC" the brake shoes to exactly fit the turned drums radius.


2015 RAM LongHorn 3500 Dually CrewCab 4X4 CUMMINS/AISIN RearAir 385HP/865TQ 4:10's
37,800# GCVWR "Towing Beast"

"HeavyWeight" B&W RVK3600

2016 MobileSuites 39TKSB3 highly "Elited" In the stable

2007.5 Mobile Suites 36 SB3 29,000# Combined SOLD

Latner

Indiana

Senior Member

Joined: 08/06/2006

View Profile



Posted: 10/11/22 10:51am Link  |  Quote  |  Print  |  Notify Moderator

Shade tree mechanic here. Like it's been said, "follow the manufacturer instructions" because it's not a requirement for all. I just did the front brakes on my 2500hd using ACDelco Gold Enhanced Performance Severe Duty Rotors and no where does it say anything about a "bedding" procedure, just pump the pedal to push the caliper piston against the pads.

larry barnhart

wenatchee. wa usa

Senior Member

Joined: 03/30/2001

View Profile





Offline
Posted: 10/11/22 01:08pm Link  |  Quote  |  Print  |  Notify Moderator

Cummins12V98 wrote:

Back in the "DAY" I would have my local NAPA "ARCH" or "ARC" the brake shoes to exactly fit the turned drums radius.



same for me but seems like that is not the way it is now?? chevman


chevman
2019 rockwood 34 ft fifth wheel sold
2005 3500 2wd duramax CC dually
prodigy



KSH 55 inbed fuel tank

scanguage II
TD-EOC
Induction Overhaul Kit
TST tire monitors
FMCA # F479110

Cummins12V98

on the road

Senior Member

Joined: 06/03/2012

View Profile


Offline
Posted: 10/12/22 11:00am Link  |  Quote  |  Print  |  Notify Moderator

larry barnhart wrote:

Cummins12V98 wrote:

Back in the "DAY" I would have my local NAPA "ARCH" or "ARC" the brake shoes to exactly fit the turned drums radius.



same for me but seems like that is not the way it is now?? chevman


I have not heard of anyone doing it any longer.

Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 
Page of 3  
Prev

Open Roads Forum  >  Tech Issues

 > Bedding Brakes
Search:   Advanced Search

Search only in Tech Issues


New posts No new posts
Closed, new posts Closed, no new posts
Moved, new posts Moved, no new posts

Adjust text size:




© 2023 CWI, Inc. © 2023 Good Sam Enterprises, LLC. All Rights Reserved.