R3VLimited Forums

Go Back   R3VLimited Forums > E30 Technical Forums > Suspension & Unsprung > Brakes, Subframe & Arms

Reply
 
Thread Tools
Old 07-16-2017, 07:14 PM   #1
laziwil
Noobie
 
Join Date: Aug 2016
Location: Bay Area
Posts: 5
One brake pad installed backwards

So, I am a dumba** and did my front driver side very quick without double checking my pads. All other 3 were installed correctly.

So, I went for a short drive outside my house like 2 min drive. I quickly noticed it wasn't braking correctly as the front driver side was making abnormal noise. I only did like 10-15mph max and pressed brake pedal lightly. I took it back to the driveway and let go of my e-brake and brake pretty hard as it roll down a little. Did this like 4 times.

After that, I took out the brake pads of the driver side and found the inner one (piston side) was installed backwards. I noticed the shim was all gone and revealed the metal side of the pad. The rotor has all the silicone from the shim. From what it looks, it looks ok...And then I cleaned the rotor with brake cleaner.

Can I put an old shim from an old brake pad and put silicone and be ok?

I did not do any hard stops from high speeds...just light pedal to go over a speed bump outside my street at 15mph MAX. Then did hard braking when it rolled like 5 feet down my backyard.
laziwil is offline   Reply With Quote
Old 07-16-2017, 07:38 PM   #2
ThatOneEuroE30
R3V OG
 
ThatOneEuroE30's Avatar
 
Join Date: Dec 2013
Location: Omaha NE
Posts: 7,484
Picture is worth a thousand words. Hard to say with out seeing
ThatOneEuroE30 is offline   Reply With Quote
Old 07-16-2017, 07:47 PM   #3
laziwil
Noobie
 
Join Date: Aug 2016
Location: Bay Area
Posts: 5
Ok, will post pictures tomorrow as it is getting late.

laziwil is offline   Reply With Quote
Old 07-19-2017, 11:54 AM   #4
laziwil
Noobie
 
Join Date: Aug 2016
Location: Bay Area
Posts: 5
http://imgur.com/a/Idn11

Finally got the pics...too busy with work..
laziwil is offline   Reply With Quote
Old 07-19-2017, 01:09 PM   #5
MrBurgundy
E30 Mastermind
 
MrBurgundy's Avatar
 
Join Date: Mar 2012
Location: 33.8170 N 118.0373 W
Posts: 1,966
How deep are those grooves? If you can feel an uneven surface running your finger from the outer diameter to the inner diameter of the rotor, you're going to want to machine that bad boy
__________________
Quote:
Originally Posted by gammapowered View Post
Thank you and that was also hurtful.
MrBurgundy is offline   Reply With Quote
Old 07-19-2017, 04:08 PM   #6
jeffnhiscars
R3V Elite
 
jeffnhiscars's Avatar
 
Join Date: Jun 2011
Location: Officially Tampa
Posts: 4,863
I'm still on "the inner one was installed backwards". Evidentially it's possible..but not sure how
__________________
SEAT SHOCK SALE !!
http://www.r3vlimited.com/board/showthread.php?t=412838

Seat, Deck Lid & Cabrio Hinge Shocks available for immediate shipping
http://www.r3vlimited.com/board/showthread.php?t=409456

Alice the Time Capsule
http://www.r3vlimited.com/board/showthread.php?t=360504
87 Zinno Cabrio barn find 98k and still smells like a barn. Build thread http://www.r3vlimited.com/board/show...20#post3455220
jeffnhiscars is offline   Reply With Quote
Old 07-19-2017, 07:22 PM   #7
e30davie
E30 Addict
 
Join Date: Apr 2016
Location: Australia
Posts: 406
I dunno what its like over there but machining of discs can be almost as expensive as new discs....
e30davie is offline   Reply With Quote
Old 07-19-2017, 07:58 PM   #8
laziwil
Noobie
 
Join Date: Aug 2016
Location: Bay Area
Posts: 5
Yeah I wasnt paying attention as I was just rushing to throw it on there and go out to the county fair lol.

The grooves are not that deep...but given tolerances are within 2mm for rotors I'd say 0.7mm? LOL

I guess I'll run it like this and get better brakes for the front. I'll drive it for 2-3 days and check lol.
laziwil is offline   Reply With Quote
Old 07-20-2017, 05:09 AM   #9
ELVA164
R3V Elite
 
ELVA164's Avatar
 
Join Date: Dec 2011
Location: Hopewell Junction, NY
Posts: 4,593
There's a first time for everything, it seems.
__________________
Interested in vintage cars? Ever thought about racing one? Info, photos, videos, and more can be found at www.michaelsvintageracing.com!


Elva Courier build thread here!
ELVA164 is offline   Reply With Quote
Old 07-22-2017, 04:24 AM   #10
digger
No R3VLimiter
 
Join Date: Nov 2005
Location: Sydney, Oz
Posts: 3,650
yeah just run it, they will bed together. worst case if it makes too much noise you worry about it later
__________________
89 E30 325is Lachs Silber - currently M20B31, M20B33 in the works...

new build thread http://www.r3vlimited.com/board/showthread.php?t=317505

digger is offline   Reply With Quote
Old 07-22-2017, 07:55 AM   #11
jeffnhiscars
R3V Elite
 
jeffnhiscars's Avatar
 
Join Date: Jun 2011
Location: Officially Tampa
Posts: 4,863
Quote:
Originally Posted by e30davie View Post
I dunno what its like over there but machining of discs can be almost as expensive as new discs....
I was paying $13-4/rotor at the old time machine shop that did other work for me. He would put a heavy rubber O ring around the perimeter (like a washing machine drive belt) and held a hardwood stick against the face of the rotor as it turned. He explained that new rotors are usually not that well machined and his little tricks keep the cutting bit from chattering for a much truer finish.

The last time I got new rotors, 4 Meyles delivered was $105. I like the 1st option even though BMW says dont turn them.
__________________
SEAT SHOCK SALE !!
http://www.r3vlimited.com/board/showthread.php?t=412838

Seat, Deck Lid & Cabrio Hinge Shocks available for immediate shipping
http://www.r3vlimited.com/board/showthread.php?t=409456

Alice the Time Capsule
http://www.r3vlimited.com/board/showthread.php?t=360504
87 Zinno Cabrio barn find 98k and still smells like a barn. Build thread http://www.r3vlimited.com/board/show...20#post3455220
jeffnhiscars is offline   Reply With Quote
Old 07-24-2017, 06:01 PM   #12
laziwil
Noobie
 
Join Date: Aug 2016
Location: Bay Area
Posts: 5
I broke them in and they seem to work fine.

The rears are squealing though. Maybe I did not put enough silicone lubricant on the shims.
laziwil is offline   Reply With Quote
Reply

Thread Tools

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

Forum Jump


All times are GMT -7. The time now is 01:47 AM.


Powered by vBulletin® Version 3.8.10
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Copyright 2004 - 2020 R3VLimited LLC