Caliper Rebuild Kit - Anyone Had A Go??

General Questions and comments

Moderators: IMC, Club Staff

Post Reply
User avatar
Shhtuart
Forum Moderator
Posts: 1747
jedwabna poszewka promocja
Joined: Sun Aug 05, 2007 5:00 pm
Location: Melbourne
Contact:

Caliper Rebuild Kit - Anyone Had A Go??

Post by Shhtuart »

I am planning on rebuilding my brakes these uni holidays.

I'll be doing the following as well;

- drilled and slotted rotors front and rear
- ebc redstuff pads front and rear
- braided brake lines
- rebuilding the calipers

Now the last one is the problem. I've had a look online about rebuilding but I'm still unsure as into how the piston detaches from the caliper itself. Can anyone shed some light on it for me please?
User avatar
Dras
Mechanic
Posts: 584
Joined: Wed Jul 26, 2006 5:00 pm
Location: Castle Hill, Sydney
Contact:

Re: Caliper Rebuild Kit - Anyone Had A Go??

Post by Dras »

I rebuilt my front calipers about a year ago. I bought them second hand (GR to GPX upgrade) and they were seized so I cleaned, painted and rebuilt them before I fitted them.

I recently swapped out my track day brakes and I can tell you that they are still working perfectly.

The trick with the pistons is to pump compressed air into where the brake line goes, once the caliper is detached obviously. Place some wood inside the caliper so that when it shoots out (which it will) that it hits soft wood rather than hard metal.

If you have a multiple piston caliper, you are going to end up with one piston moving first and the rest remaining still. You are going to want to stop that piston moving after about a cm or 2 with wood so that it forces the remaining pistons out. Once one of the pistons is completely out, you will not be able to use compressed air anymore as it will just escape. So the trick is to let them move one at a time about a cm at a time. When they are 80-90% out and one of the pistons are completely ejected, you will be able to wiggle the remaining pistons out either by hand or very carefully with some pliers covered it some cloth so as not to scratch the piston.

If you don't have an air compressor, a 12V cheapy tyre inflator from SuperCheap will do the trick just fine. It doesn't take a great deal of pressure to get the pistons to move so take it easy.
User avatar
Bennoz
National President
Posts: 23676
Joined: Fri Jan 21, 2005 6:00 pm
Location: Sydney
Contact:

Re: Caliper Rebuild Kit - Anyone Had A Go??

Post by Bennoz »

You can also get an attachment that will hook up a hand bike pump to the caliper for the same effect ;)
User avatar
Shhtuart
Forum Moderator
Posts: 1747
Joined: Sun Aug 05, 2007 5:00 pm
Location: Melbourne
Contact:

Re: Caliper Rebuild Kit - Anyone Had A Go??

Post by Shhtuart »

Lol, so I just give it a blow and it comes out? :lol:

I have access to a compressor so I'll give that a go, plus I just ordered all the stuff from camskill;

All the above came to 270 pounds before postage but I'm expecting a massive one due to the weight.

The rebuild from the ground up starts...
User avatar
Dras
Mechanic
Posts: 584
Joined: Wed Jul 26, 2006 5:00 pm
Location: Castle Hill, Sydney
Contact:

Re: Caliper Rebuild Kit - Anyone Had A Go??

Post by Dras »

If you haven't yet transferred the money to camskill, I would seriously consider talking to GSL RallySports. (http://gslrallysport.com)

I am not sure what you are planning but I am running RDA rotors with QFM A1RM pads for track days and they are great. The QFM A1RM pads are also much nicer for daily drives than the red stuff and cheaper. Coupled with TRW GP600 Dot 4 Racing Brake Fluid and unless you are running monstrous power or a track only car, I am not sure why you would need anything different.
User avatar
Shhtuart
Forum Moderator
Posts: 1747
Joined: Sun Aug 05, 2007 5:00 pm
Location: Melbourne
Contact:

Re: Caliper Rebuild Kit - Anyone Had A Go??

Post by Shhtuart »

Too late.

I'm not too fussed, it's drilled and slotted front and rears, HEL braided lines, and the redstuff.

If i was buying them here i'd of ebayed it all (:lol:) coming to $~$1300.

Ill have it in 6 days too so again, I think it's decent for what I'm getting.
User avatar
spetz
Oldtimer
Posts: 2915
Joined: Wed Mar 03, 2004 6:00 pm

Re: Caliper Rebuild Kit - Anyone Had A Go??

Post by spetz »

How much is a rebuild kit?
And I assume that a rebuild kit for a Magna which uses the twin pot brakes is fine too?
User avatar
Shhtuart
Forum Moderator
Posts: 1747
Joined: Sun Aug 05, 2007 5:00 pm
Location: Melbourne
Contact:

Re: Caliper Rebuild Kit - Anyone Had A Go??

Post by Shhtuart »

This;

http://www.ebay.com.au/itm/MITSUBISHI-F ... 20ba08fd1a

The FTO front 2 pot calipers were shared with Evo III's so I don't believe they are the same as Magnas.
Post Reply