Ausmini
It is currently Thu Jul 24, 2025 2:31 am

All times are UTC + 10 hours




Post new topic Reply to topic  [ 25 posts ]  Go to page 1, 2  Next
Author Message
 Post subject: brake calliper rebuild.
PostPosted: Thu Nov 08, 2007 8:05 pm 
Offline
998cc
998cc
User avatar

Joined: Sat Jun 12, 2004 8:12 pm
Posts: 736
Location: Wollondilly
okay so got all the bits, spent an hour and a half cleaning the rust out of the bored of the callipers, luckily surface rust, my question is how clean do i need to get them ive scrubbed and secrubbed, and theres still a teeny bit fo grime in there? what did you guys use to clean them, here are some pics of the worst spots

Image
Image
Image

_________________
I have a problem.. apparently


Top
 Profile  
 
 Post subject:
PostPosted: Thu Nov 08, 2007 8:33 pm 
Offline
1360cc
1360cc
User avatar

Joined: Mon Aug 23, 2004 10:07 pm
Posts: 10653
Location: SE Melbourne
I've rebuilt a few calipers before, I get the bead blasted each time.
Before assembly, I wipe the bored out with a grease remover of some kind.
Brake systems don't like dirt.
:D


Top
 Profile  
 
 Post subject:
PostPosted: Thu Nov 08, 2007 8:36 pm 
Offline
998cc
998cc
User avatar

Joined: Sat Jun 12, 2004 8:12 pm
Posts: 736
Location: Wollondilly
whats bead blasting worth? roughly, and do i need it, im not too worried about the outsides, just the insides, its clean but there are still marks from where the dirt used to be.

_________________
I have a problem.. apparently


Top
 Profile  
 
 Post subject:
PostPosted: Thu Nov 08, 2007 8:39 pm 
Offline
1360cc
1360cc
User avatar

Joined: Mon Aug 23, 2004 10:07 pm
Posts: 10653
Location: SE Melbourne
Just ask around. The place doesn't have to be a brake mob.
I had the local auto electricians do it. Cost me maybe $30 for the calipers and a few
other bits n bobs.


Top
 Profile  
 
 Post subject:
PostPosted: Thu Nov 08, 2007 8:39 pm 
Offline
SooperDooperMiniCooper ExpertEngineering
User avatar

Joined: Fri Apr 29, 2005 9:46 am
Posts: 18887
Location: Under the bonnet son!
Yeah, no dirt is the biggie. Wash it out in whatever you need to clean the calliper up, maybe even wire brush it to remove the rest of the grime and paint on the outside. But make sure you remove all the debris from inside before you assemble them. The pistons don't use the bore here as a seal, it is the contact between the seal and the piston which is important, so just clean the rest out and make sure your pistons are in good clean shape.

Methylated spirits is the easiest option unless you like spending cash on brake solvents in a can. Wash it down in this before you assemble. Use some rubber grease or fresh brake fluid to lube it up as you press it all together. If storing for longer, use rubber grease to prevent any more corrosion.

_________________
SooperDooperMiniCooperExpertEngineering

All garage work involves equal measures of enthusiasm, ingenuity and a fair degree of irresponsibility.


Top
 Profile  
 
 Post subject:
PostPosted: Thu Nov 08, 2007 8:42 pm 
Offline
998cc
998cc
User avatar

Joined: Sat Jun 12, 2004 8:12 pm
Posts: 736
Location: Wollondilly
dont buy brake solvents, that is the calliper after a whole can ;) carby cleaner works bettter which i found when i was packing up. thanks for the help guys. might leave em apart until i need to use em to stop corrosion at all

_________________
I have a problem.. apparently


Top
 Profile  
 
 Post subject:
PostPosted: Thu Nov 08, 2007 8:49 pm 
Offline
998cc
998cc

Joined: Sat Jan 07, 2006 11:52 pm
Posts: 966
Location: Bald Hills, Brisbane
why not give them a good wire brushing and coat in a nice colour of caliper paint while they are apart


Top
 Profile  
 
 Post subject:
PostPosted: Thu Nov 08, 2007 8:51 pm 
Offline
998cc
998cc
User avatar

Joined: Sat Jun 12, 2004 8:12 pm
Posts: 736
Location: Wollondilly
thinkin about it. ill see how i go over the weekend

_________________
I have a problem.. apparently


Top
 Profile  
 
 Post subject:
PostPosted: Thu Nov 08, 2007 8:54 pm 
Offline
This space for rent
User avatar

Joined: Thu Feb 08, 2007 12:40 pm
Posts: 5455
Location: Melbourne
Do it, you won't regret it 8)

_________________
Simon

The adventures of an owner builder in the Tallarook Ranges

Image


Top
 Profile  
 
 Post subject:
PostPosted: Thu Nov 08, 2007 8:57 pm 
Offline
998cc
998cc
User avatar

Joined: Sat Jun 12, 2004 8:12 pm
Posts: 736
Location: Wollondilly
lol yeah ill regret it if i dont ;)

is it worth getting my disks reground or just get new ones?

_________________
I have a problem.. apparently


Top
 Profile  
 
 Post subject:
PostPosted: Thu Nov 08, 2007 8:59 pm 
Offline
This space for rent
User avatar

Joined: Thu Feb 08, 2007 12:40 pm
Posts: 5455
Location: Melbourne
Depends what thickness you've got now. If you've got enough, you won't gain anything by buying new discs vs machining the ones you've got.

_________________
Simon

The adventures of an owner builder in the Tallarook Ranges

Image


Top
 Profile  
 
 Post subject:
PostPosted: Thu Nov 08, 2007 9:01 pm 
Offline
998cc
998cc
User avatar

Joined: Sat Jun 12, 2004 8:12 pm
Posts: 736
Location: Wollondilly
true cept for looks, but its gonna be a dily so they will look the same eventually anyway

_________________
I have a problem.. apparently


Top
 Profile  
 
 Post subject:
PostPosted: Thu Nov 08, 2007 9:03 pm 
Offline
This space for rent
User avatar

Joined: Thu Feb 08, 2007 12:40 pm
Posts: 5455
Location: Melbourne
You're not going to see the rotors.. only the calipers. Get some paint on them and save your $$$ on the discs 8)

_________________
Simon

The adventures of an owner builder in the Tallarook Ranges

Image


Top
 Profile  
 
 Post subject:
PostPosted: Thu Nov 08, 2007 9:04 pm 
Offline
998cc
998cc
User avatar

Joined: Sat Jun 12, 2004 8:12 pm
Posts: 736
Location: Wollondilly
sounds like some good advice 8) pics up monday

_________________
I have a problem.. apparently


Top
 Profile  
 
 Post subject:
PostPosted: Thu Nov 08, 2007 9:44 pm 
Offline
1275cc
1275cc
User avatar

Joined: Mon Sep 19, 2005 4:57 pm
Posts: 3635
Location: Gulgong
Mini rotors are quite a different proposition to rotors off a commodore or a falcon.

If the crummydore or foulcan rotors are worn and scored its actually cheaper to buy new ones (at $60 a rotor ) than to send them off for machining.

New mini rotors cost a bit more and that tips the balance in favour of machining scored or worn rotors. But having said that - if they are worn too far they will neeed replacing.

Mike


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 25 posts ]  Go to page 1, 2  Next

All times are UTC + 10 hours


Who is online

Users browsing this forum: No registered users and 97 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Jump to:  

© 2016 Ausmini. All garage work involves equal measures of enthusiasm, ingenuity and a fair degree of irresponsibility.