Caliper re-build advise - Pontiac GTO Forum
User Tag List

 
LinkBack Thread Tools Display Modes
post #1 of 3 (permalink) Old 12-07-2010, 10:47 AM Thread Starter
RIP (12/27/60-7/18/15)
 
Topkat's Avatar
 
Join Date: Sep 2010
Posts: 767
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Caliper re-build advise

Im gonna rebuild my 4 piston calipers.
Is it okay to wire wheel the pistons?
I mean they don't seem like they contact the sides of the bores.
The service manual says to lightly use crokus cloth to smooth the bores.
What does crokus cloth equate too in terms of grit?
400 maybe? or less?
Also are there any tricks to installing the outer seals?
Thanks as always!
Topkat is offline  
Sponsored Links
Advertisement
 
post #2 of 3 (permalink) Old 12-07-2010, 11:25 AM
 
Join Date: Feb 2009
Location: Novato, Cali
Posts: 336
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Crokus cloth is a lot finer than 400 grit. I would not use a wire brush any where on the inside pieces of the calipers. Clean the insides and piston with a lot of break cleaner/aceatone and a rag/soft nylon toothbrush. If they are real dirty let them soak for an hour. After cleaning them look at them real good. If there are any scratches or rust take a green scotch brite pad soaked in brake fluid and real lightly hit just those areas. Clean everything back up with brake cleaner and then oil the piston and cylinder with brake fluid. Be real careful when you put the pistons back in not to nick the sides. Go straight in. Don't forget to put new bleeders on.

As far as the outer seals go, just take your time and if you tear one or two putting them in they are cheap to buy. It's all in the process of learning.

Let us know how it went or if you have any other questions.

Last edited by dimitri; 12-07-2010 at 11:51 AM.
dimitri is offline  
post #3 of 3 (permalink) Old 12-07-2010, 07:06 PM
64-67 Expert
 
geeteeohguy's Avatar
 
Join Date: Feb 2008
Location: Fresno, California
Posts: 8,543
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 118 Post(s)
X2. In addition, there is a product (McKay makes it, among others) called brake assembly lube. It's a lot slicker than brake fluid, and makes assembling caliper seals and pistons a snap. NAPA has it. And remember.....NO WIRE WHEELS!!!
geeteeohguy is offline  
Sponsored Links
Advertisement
 
Reply

  Pontiac GTO Forum > The 1964-1974 Pontiac Tempest, Lemans & GTO > 1964-1974 Tempest, LeMans & GTO Projects, Barn Finds & Restoration Discussions

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Pontiac GTO Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
caliper piston Topkat 1964-1974 Tempest, LeMans & GTO Technical and Electrical Wiring 4 12-05-2010 08:58 PM
hole in brake caliper Topkat 1964-1974 Tempest, Lemans & GTO Exhaust, Suspension, Alignment, Fuel Tank and Brakes. 9 11-27-2010 04:11 PM
Rear Caliper bolt size? harvotp Drive train, suspension, alignment and brakes. 2 04-11-2010 01:42 PM
Help ! I cant put My caliper back on JayD 2004-2006 GTO General Discussion 5 11-05-2009 05:20 PM

Posting Rules  
You may post new threads
You may 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
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome