Notices
Suspension, Brakes, Drivetrain discuss the wondrous effects of boost and your miata...
Sponsored by:
Sponsored by: 949 Racing

Question on caliper piston adjustment

Thread Tools
 
Search this Thread
 
Old Apr 30, 2012 | 12:48 PM
  #1  
UrbanSoot's Avatar
Thread Starter
Elite Member
iTrader: (24)
 
Joined: Jun 2007
Posts: 4,667
Total Cats: 18
From: Woodland Hills, CA
Default Question on caliper piston adjustment

I finally took time to install my rear brakes few days ago. Setup is EBC Greenstuff pads on top of new OEM blank rotors.

In order to get everything to fit properly I had to adjust the allen screw in the back of the caliper to get piston to come out ALL the way (won't go further) and even then it took few tries to fit everything together. So far it works great although it took couple dozen miles to "shave" pads/rotors a bit so they aren't always in contact.

Did anyone ever stumble on something like this before? Personally I've never had to do anything like this ever in my life.
Old Apr 30, 2012 | 12:53 PM
  #2  
rleete's Avatar
Elite Member
iTrader: (21)
 
Joined: Jun 2007
Posts: 6,794
Total Cats: 1,342
From: Rochester, NY
Default

That doesn't sound right. I just put pads and rotors on mine (rebuilt, OEM pads), and I had several turns of adjustment before the pads contacted.

Are you sure it was all the way back? Those adjustment doohickys tend to get gummed up a little.
Old Apr 30, 2012 | 12:58 PM
  #3  
UrbanSoot's Avatar
Thread Starter
Elite Member
iTrader: (24)
 
Joined: Jun 2007
Posts: 4,667
Total Cats: 18
From: Woodland Hills, CA
Default

Yeah, pistons were all the way in on both sides. These pads did look pretty damn thick though.
Old Apr 30, 2012 | 04:20 PM
  #4  
eb66's Avatar
Newb
 
Joined: Jul 2010
Posts: 31
Total Cats: 0
Default

I think mine were the same way when I did mine. If they are too tight you'll know by the smell/heat.
Old Apr 30, 2012 | 05:28 PM
  #5  
UrbanSoot's Avatar
Thread Starter
Elite Member
iTrader: (24)
 
Joined: Jun 2007
Posts: 4,667
Total Cats: 18
From: Woodland Hills, CA
Default

It smelled a bit for about 50 miles but it's much better now.
Old Apr 30, 2012 | 07:06 PM
  #6  
mx5-kiwi's Avatar
Senior Member
 
Joined: Dec 2010
Posts: 993
Total Cats: 57
From: Auckland, NZ
Default

I have just been ******** around with mine after a 1800 rear end swap. the calipers it came with were gummed up solid, the handbrake lever wouldn't return etc...had to put back the original caliper which appear to be the same size while i send back the newer ones under warranty....

I think if your handbrake works properly and the rubbing / heat etc has gone you are probably good to go...
Old Apr 30, 2012 | 07:21 PM
  #7  
xjdesertfox's Avatar
Newb
 
Joined: Sep 2011
Posts: 25
Total Cats: 0
Default

I have ebc greenstuff on OEM size rotors, I had plenty of adjustment left over when they were installed. Just set the adjustment to work with the parking brake and they were perfect.
Old Apr 30, 2012 | 08:09 PM
  #8  
Miater's Avatar
Senior Member
 
Joined: Aug 2010
Posts: 936
Total Cats: 27
From: Arl. Texas
Default

E-brake adjustment and regular braking adjustment are too different things. If one is dragging the other may not be.

I had similar problems with my right rear.
Old Apr 30, 2012 | 08:19 PM
  #9  
rleete's Avatar
Elite Member
iTrader: (21)
 
Joined: Jun 2007
Posts: 6,794
Total Cats: 1,342
From: Rochester, NY
Default

Uh, no. There is only one adjustment to be made.
Old Apr 30, 2012 | 09:20 PM
  #10  
curly's Avatar
Cpt. Slow
iTrader: (25)
 
Joined: Oct 2005
Posts: 15,192
Total Cats: 1,398
From: Oregon City, OR
Default

Well, there's two actually.

The handle and the piston.
Old Apr 30, 2012 | 10:07 PM
  #11  
rleete's Avatar
Elite Member
iTrader: (21)
 
Joined: Jun 2007
Posts: 6,794
Total Cats: 1,342
From: Rochester, NY
Default

Yes, but I meant at the caliper itself. Adjusting the handle won't do much at the caliper end. All that does is adjust the length of pull.
Old May 1, 2012 | 10:48 AM
  #12  
eb66's Avatar
Newb
 
Joined: Jul 2010
Posts: 31
Total Cats: 0
Default

Originally Posted by UrbanSoot
It smelled a bit for about 50 miles but it's much better now.
Interesting, I kind of wondered how long it would take for them to wear down/adjust themselves. As long as they aren't getting really hot I wouldn't worry.
Old May 1, 2012 | 06:23 PM
  #13  
UrbanSoot's Avatar
Thread Starter
Elite Member
iTrader: (24)
 
Joined: Jun 2007
Posts: 4,667
Total Cats: 18
From: Woodland Hills, CA
Default

After I've adjusted the calipers (with e-brake cables disconnected on both sides), everything was nice and snug. Rotors had some minor rust on them from sitting outside for about half a week. Everything works perfect now.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Full_Tilt_Boogie
Build Threads
84
Apr 12, 2021 04:21 PM
emilio700
Wheels and Tires
151
Jun 2, 2017 02:36 PM
stoves
Suspension, Brakes, Drivetrain
5
Apr 21, 2016 03:00 PM
pdexta
WTB
0
Sep 28, 2015 11:18 AM




All times are GMT -4. The time now is 07:41 AM.