General GM Chat When starting new posts, please specify YEAR, MAKE, MODEL, ENGINE type, and whatever modifications you have made. Chat about all things GM (and related cars). Off-topic stuff should be in the Lounge, and all Model specific mechanical problems should be posted in the proper forum.

Brake Break in.

Thread Tools
 
Search this Thread
 
Old Aug 15, 2005 | 01:09 PM
  #11  
Drifter420's Avatar
Thread Starter
Senior Member
True Car Nut
 
Joined: Jun 2002
Posts: 3,266
Likes: 1
From: Bedroom, Ontario
Drifter420 is on a distinguished road
Default

Originally Posted by sse1990
Originally Posted by BillBoost37
Wings?

HAHAHAHA, smarten up drifter, lol.


When I bought the RSM rotors and pads, they just said to take it easy for 500 km or so. That was it, they didn't mention anything about hard stops to break them in.
I just want to ensure there isn't any break in procedure MICE..
Reply
Old Aug 15, 2005 | 01:34 PM
  #12  
mkaake's Avatar
Senior Member
Posts like a Camaro
 
Joined: Jan 2004
Posts: 1,166
Likes: 1
mkaake is on a distinguished road
Default

i'll have to find the article, but the procedure I use is the 30 stops from 30 mph - in groups of 10 stops. once you've done 10, you let the car sit in park for a few minutes.

again, I'll look for the article, but it'* a permutation of the SAE guidelines for breaking in pads the proper way, but in such a way that the average person can actually do it (the SAE specs say to decelerate at what rate for how long, etc, and they have you do 100 stops, if memory serves).

lemmee see if I can dig it up.

and yeah, my last break in was fun - we had a small area with turn arounds, so we had to hit 30 and slow back down in a very short run... good times.
Reply
Old Aug 15, 2005 | 01:40 PM
  #13  
mkaake's Avatar
Senior Member
Posts like a Camaro
 
Joined: Jan 2004
Posts: 1,166
Likes: 1
mkaake is on a distinguished road
Default

some quick searching hasn't yeilded the site I read before (still looking though), but there have been a ton others, and from what I'm reading... if you're using a semi-metallic pad, it'* best to do the proc i said above, or as close to it as you can get.

<edit>

doh! i remember why I'm having such a hard time finding it - it was in an actual magazine. I'll try to remember what mag it was and see if i can dig it up...

<edit>

until i find the article that i'm looking for, this does a good job of explination. the one i'm looking for explains the actual numbers behind the 30/30 dealio...

http://www.kitcarbooks.com/brakepads.html
Reply
Old Aug 15, 2005 | 05:08 PM
  #14  
BonneMeMN's Avatar
Senior Member
Certified Car Nut
 
Joined: Jun 2003
Posts: 15,928
Likes: 1
BonneMeMN is on a distinguished road
Default

Just dont' glaze over your brand new pads You want to season them lightly...

(sounds like a damn cooking forum)
Reply
Old Aug 15, 2005 | 05:13 PM
  #15  
Drifter420's Avatar
Thread Starter
Senior Member
True Car Nut
 
Joined: Jun 2002
Posts: 3,266
Likes: 1
From: Bedroom, Ontario
Drifter420 is on a distinguished road
Default

Originally Posted by BonneMeMN
Just dont' glaze over your brand new pads You want to season them lightly...

(sounds like a damn cooking forum)
When MArtha STerwart meets Horsepower TV

thanx mkaake
Reply
Old Aug 22, 2005 | 08:06 PM
  #16  
IO's Avatar
IO
Senior Member
Posts like a Turbo
 
Joined: Jan 2004
Posts: 321
Likes: 0
From: Lake Forest, CA
IO is on a distinguished road
Default

I never did a Brake Breakin, Once I had my new SP Slotted and Cross drilled rotors and Hawk Ceramic pads installed (at the same time) I just went for it. BTW I just had my new tires put on on Saturday (RE750'* 255/50 17 and they are awsome) and I had them check the meat on the front and rear pads. I have never had my back ones replaced and I have 52k on my 01 and I had the fronts put on at 25k and the service tech told me I still had about 50% meat on the fronts and the rears.
Reply
Old Aug 23, 2005 | 12:16 AM
  #17  
singscountry1967's Avatar
Junior Member
 
Joined: Aug 2005
Posts: 1
Likes: 0
From: North of Buffalo, NY *** NEBF '05, '06, '07 *** ***ONBF & NYBF 06; 07*** ***WCBF 06***
singscountry1967 is on a distinguished road
Default

Originally Posted by Drifter420
New rotors and Pads ( not the pads with wings.. :P )
LMAO! That'* "Always" a good joke....I guess it "Depends" on your sense of humor!

Hey, I googled this and only came up w/the following from http://www.chtopping.com/StreetRodder5/

"Breaking in New Metallic Lining or Pads
Metallic takes twice as ling to seat-in as compared to organic, but metallic also lasts twice as long as organic. The organic break-in period takes about half the time and the lining lasts about half as long. Always arc the shoes to the drums.

Make approximately 20 complete stops (10 for organic) from 30mph, or 20 "slow downs" from 50mph to 20mph, with light to moderate pedal pressure.

Allow at least 30 seconds between brake applications for the brake shoes or pads to cool down"


It still doesn't explain the 30 30 30 theory though....
Reply
Old Aug 23, 2005 | 08:31 AM
  #18  
mkaake's Avatar
Senior Member
Posts like a Camaro
 
Joined: Jan 2004
Posts: 1,166
Likes: 1
mkaake is on a distinguished road
Default

Originally Posted by singscountry1967
Originally Posted by Drifter420
New rotors and Pads ( not the pads with wings.. :P )
LMAO! That'* "Always" a good joke....I guess it "Depends" on your sense of humor!

Hey, I googled this and only came up w/the following from http://www.chtopping.com/StreetRodder5/

"Breaking in New Metallic Lining or Pads
Metallic takes twice as ling to seat-in as compared to organic, but metallic also lasts twice as long as organic. The organic break-in period takes about half the time and the lining lasts about half as long. Always arc the shoes to the drums.

Make approximately 20 complete stops (10 for organic) from 30mph, or 20 "slow downs" from 50mph to 20mph, with light to moderate pedal pressure.

Allow at least 30 seconds between brake applications for the brake shoes or pads to cool down"


It still doesn't explain the 30 30 30 theory though....
the 30/30/30 is based on the SAE standard for breaking in breaks, just simplified. it'* really just about the same thing as what you said - 30 stops from 30 miles an hour every 30 seconds or so. It should take 10 seconds to come to a stop from 30mph for the proper deceleration rate. The reason the 30 method uses 30 stops is because it breaks them into 3 groups of ten stops, with a 2 minute pause between runs, providing the right amount of cooling time for the rotors as they are being broken in. still can't find the article (the magazine i read it in is long gone), but that'* what it said. Apparently, the full SAE spec that it'* based off of called for 100 stops... but they said that was overkill to the extreme for daily drivers.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
gigion
1992-1999
3
Mar 14, 2007 12:58 PM
Vaughan221
Everything Electrical & Electronic
16
Jun 21, 2006 10:04 AM
wjcollier07
1987-1991
3
Apr 5, 2006 09:37 PM
wjcollier07
1987-1991
4
Mar 30, 2006 11:16 AM
disco_dotty
1987-1991
14
Jan 19, 2005 07:38 PM




All times are GMT -4. The time now is 08:48 AM.