Stock brake calipers... - CorvetteForum - Chevrolet Corvette Forum Discussion

Notices
C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Stock brake calipers...

Reply

 
 
 
Old 03-21-2011, 11:34 PM
  #1  
overdrawn
CF Senior Member
Thread Starter
 
overdrawn's Avatar
 
Member Since: Aug 2010
Location: Manteca Calif
Posts: 924
Thanks: 0
Thanked 1 Time in 1 Post
Default Stock brake calipers...

I decided to pull my caliper pistons out to replace the seals, the pistons were really hard to get out, air would not work, I had to use channel locks, now with the new seals in the caliper housing the pistons were super tight to get back in, I don't see how the fluid is going to move them or does this sound normal?
overdrawn is offline  
Reply With Quote
Old 03-22-2011, 12:12 AM
  #2  
slickfx3
CF Senior Member
 
slickfx3's Avatar
 
Member Since: Oct 2008
Location: Los Angeles CA
Posts: 4,023
Thanked 24 Times in 24 Posts
Default

why did you pull them? , were they stuck and did not work?

does not sound normal, i just ordered a reman from auto zone 50 bucks and it's my more than 5th 20 buck purchase, I have earned 20 bucks credit on the rewards program.

I found my pass rear caliper was sticky but put it back anyways with new EBC ultimax pads for fear of finding what you found... a maybe (iffie) situation .

i go into the car wed and finish the job
slickfx3 is offline  
Reply With Quote
Old 03-22-2011, 12:32 AM
  #3  
overdrawn
CF Senior Member
Thread Starter
 
overdrawn's Avatar
 
Member Since: Aug 2010
Location: Manteca Calif
Posts: 924
Thanks: 0
Thanked 1 Time in 1 Post
Default

I bought new rotors, pads and braided brake lines , so I figured why not replace the seals and dust boots and paint them ...bad idea? I don't know, I only did one and the pistons are so tight I don't want to install it to find out they don't work...i'm stuck
overdrawn is offline  
Reply With Quote
Old 03-22-2011, 12:36 AM
  #4  
slickfx3
CF Senior Member
 
slickfx3's Avatar
 
Member Since: Oct 2008
Location: Los Angeles CA
Posts: 4,023
Thanked 24 Times in 24 Posts
Default

double post

Last edited by slickfx3; 03-22-2011 at 12:38 AM.
slickfx3 is offline  
Reply With Quote
Old 03-22-2011, 12:37 AM
  #5  
slickfx3
CF Senior Member
 
slickfx3's Avatar
 
Member Since: Oct 2008
Location: Los Angeles CA
Posts: 4,023
Thanked 24 Times in 24 Posts
Default

the thing is they worked before, but think you will be fine as long as the grips didn't mess up the piston to cylinder interface to leak.

put it together and try it, it's only time under the car that you love, yeah right....
slickfx3 is offline  
Reply With Quote
Old 03-22-2011, 12:57 AM
  #6  
overdrawn
CF Senior Member
Thread Starter
 
overdrawn's Avatar
 
Member Since: Aug 2010
Location: Manteca Calif
Posts: 924
Thanks: 0
Thanked 1 Time in 1 Post
Default

LOL...I'll try them and see, they have to have a whole bunch of pressure I would think to move those pistons, but maybe so..thanks
overdrawn is offline  
Reply With Quote
Old 03-22-2011, 01:10 AM
  #7  
jcartman
Junior Member
 
Member Since: Jan 2011
Posts: 15
Thanks: 0
Thanked 0 Times in 0 Posts
Default

i find on some of the cars i work on the pistons actually become bigger from constant heat and when doing a rebuild trying to put them back is a major pain and wont go back in see if you can get new pistons for the calipers
jcartman is offline  
Reply With Quote
Old 03-22-2011, 01:38 AM
  #8  
Sidney004
CF Senior Member
 
Member Since: Jun 2004
Location: Castro Valley CA
Posts: 3,253
Thanks: 0
Thanked 0 Times in 0 Posts
Default

Originally Posted by jcartman View Post
i find on some of the cars i work on the pistons actually become bigger from constant heat and when doing a rebuild trying to put them back is a major pain and wont go back in see if you can get new pistons for the calipers
These are aluminum pistons.


To the original poster, did you lubricate the seals with brake fluid? Also, the pistons always come out with air pressure, channel locks might damage the surface.
Sidney004 is offline  
Reply With Quote
Old 03-22-2011, 03:57 AM
  #9  
Joe C
CF Senior Member
 
Member Since: Aug 2000
Posts: 10,495
Thanked 466 Times in 407 Posts
Default

Originally Posted by Sidney004 View Post
These are aluminum pistons.


To the original poster, did you lubricate the seals with brake fluid? Also, the pistons always come out with air pressure, channel locks might damage the surface.
Joe C is offline  
Reply With Quote
Old 03-22-2011, 05:55 AM
  #10  
racebum
CF Senior Member
 
racebum's Avatar
 
Member Since: Jan 2008
Location: oregon
Posts: 15,978
Thanked 139 Times in 135 Posts
Default

Originally Posted by Sidney004 View Post
These are aluminum pistons.


To the original poster, did you lubricate the seals with brake fluid? Also, the pistons always come out with air pressure, channel locks might damage the surface.


channel locks are a big no no on aluminum pistons. the tolerances between the caliper and piston are ULTRA tight and for good reason. if you had dry build up from torn seals you can use 600 grit wet to lightly buff off the residue which will get them to move again. to install you set the seal in the caliper, move the rubber around the piston, slide it down and snap the bootie in the piston.
racebum is offline  
Reply With Quote
Old 03-22-2011, 11:43 AM
  #11  
jaa1992
CF Senior Member
 
jaa1992's Avatar
 
Member Since: Mar 2001
Location: Life is just one big track event. Everything before and after is prep and warm-up and cool-down laps GA
Posts: 7,895
Thanked 6 Times in 5 Posts
Cruise-In III Veteran
Cruise-In IV Veteran
St. Jude Donor '12
Default

My last caliper rebuild I completed started to leak after a few days.
Since then I go down to Autozone and say - need a set of rebuilt calipers for my 92.
Its a lot easier
jaa1992 is offline  
Reply With Quote
Old 03-22-2011, 11:57 AM
  #12  
Muffin
CF Senior Member
 
Muffin's Avatar
 
Member Since: Jun 1999
Location: Merritt Ils Fl
Posts: 14,925
Thanks: 0
Thanked 1 Time in 1 Post
Default

Originally Posted by jaa1992 View Post
My last caliper rebuild I completed started to leak after a few days.
Since then I go down to Autozone and say - need a set of rebuilt calipers for my 92.
Its a lot easier
, Same for master cylinders. I'll tackle most any automotive repair but generally leave brake components to the pros. Considering how much of component rebuild is now done in Mexico I may have to rethink the whole thing however.
Muffin is offline  
Reply With Quote
Old 03-22-2011, 07:14 PM
  #13  
slickfx3
CF Senior Member
 
slickfx3's Avatar
 
Member Since: Oct 2008
Location: Los Angeles CA
Posts: 4,023
Thanked 24 Times in 24 Posts
Default

just picked up my caliper from autozone, everything is new, all rubbers, pins, it's a no brainier, lifetime warranty too, only 50 bucks
slickfx3 is offline  
Reply With Quote
Old 03-22-2011, 09:34 PM
  #14  
overdrawn
CF Senior Member
Thread Starter
 
overdrawn's Avatar
 
Member Since: Aug 2010
Location: Manteca Calif
Posts: 924
Thanks: 0
Thanked 1 Time in 1 Post
Default

Just finished the front I think the backs could wait till nex week
They went together easy and pistons are working as they should, I quess they just needed fluid an pressure. Thanks



who said you cant see em through the sawblades
overdrawn is offline  
Reply With Quote
Old 03-22-2011, 09:50 PM
  #15  
slickfx3
CF Senior Member
 
slickfx3's Avatar
 
Member Since: Oct 2008
Location: Los Angeles CA
Posts: 4,023
Thanked 24 Times in 24 Posts
Default

looks good
slickfx3 is offline  
Reply With Quote
 
 
 


Thread Tools
Search this Thread
Quick Reply: Stock brake calipers...


Sponsored Ads
Vendor Directory

Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: