Omega Owners Forum

Chat Area => General Car Chat => Topic started by: vauxsull on 12 August 2014, 15:06:46

Title: caliper overhaul
Post by: vauxsull on 12 August 2014, 15:06:46
What's the best method of bringing back to new ( or as close to as possible) brake calipers? Just got myself a set of 4 off elete Pete and want to spend some time on them.. Lets call it a little project to ease boredom  ;D

Title: Re: caliper overhaul
Post by: biggriffin on 12 August 2014, 15:18:59
www.biggred.co.uk (http://www.biggred.co.uk)
Title: Re: caliper overhaul
Post by: vauxsull on 12 August 2014, 15:47:25
Well that is the desired look.....
Title: Re: caliper overhaul
Post by: Webby the Bear on 12 August 2014, 16:45:31
As far as the mechanical parts go just a dust seal, square-cut seal and new piston needed (assuming that your piston is all rusted/pitted etc.)

Title: Re: caliper overhaul
Post by: vauxsull on 12 August 2014, 17:00:50
I haven't disassembled them yet but all look as rough as a bears arse.. Don't want to send away to be shot blasted but want to clean up as food as I can and repaint and reseal.
Title: Re: caliper overhaul
Post by: vauxsull on 12 August 2014, 17:01:49
Good as I can not " food"? I must be thinking of my tea hehe
Title: Re: caliper overhaul
Post by: biggriffin on 12 August 2014, 18:14:17
www.biggred.co.uk (http://www.biggred.co.uk)
They do caliper repair kits for most calipers. :y
Title: Re: caliper overhaul
Post by: vauxsull on 12 August 2014, 19:10:40
It's not just the seals I want bit to get the caliper bodies as close to new as I can without silly expense.
Title: Re: caliper overhaul
Post by: 05omegav6 on 12 August 2014, 19:12:55
Brake cleaner, wire brush and rattle can from helfrods :-X
Title: Re: caliper overhaul
Post by: VXL V6 on 12 August 2014, 19:55:07
Once cleaned up, I paint mine with Hammerite (well the smooth version).
Title: Re: caliper overhaul
Post by: vauxsull on 12 August 2014, 21:38:58
I think I will use a drill with a wire cup brush to wazz them up...
Title: Re: caliper overhaul
Post by: Webby the Bear on 13 August 2014, 11:56:33
In terms of mechanical working order calipers are as straight forward as they come.

However, you will need to replace the piston cos I guarantee it'll be all rusted and pitted and it's this pitting that tears up the square cut seal. So, square cut seal, dust boot and new piston.

Then as for painting them and making them look pretty.............. no idea ;)
Title: Re: caliper overhaul
Post by: vauxsull on 13 August 2014, 13:28:41
Out of interest what would a set of replacement pistons and seals set me back?
Title: Re: caliper overhaul
Post by: aaronjb on 13 August 2014, 13:45:21
From somewhere like Brakes International you're talking about £15 for a service kit (seals, boots etc) and £15 for a replacement piston.. Or £46 for a whole replacement (rebuilt) calliper (plus a £18 core charge refunded when you return your old ones) that arrives shiny and looking brand spanking new.

It's hardly worth the bother to DIY something that will never look as good as the rebuilt (media blasted, plated etc etc) one.

Brakes International - facelift v6 (http://brakeparts.co.uk/#page=parts&pageSection=BHF&mancode=GM&brand=VAUXHALL&model=OMEGA&modelversion=OMEG*(01-04)+2.6+%26+3.2+V6+inc+ELITE[/url) for example
Title: Re: caliper overhaul
Post by: vauxsull on 13 August 2014, 14:14:33
Thing is I already have a full set of 4 in the garage and just wanted to have a play with them so to speak. They don't need to be factory showroom condition but as clean as I can get using elbow grease... But would like new seals and pistons in them
Title: Re: caliper overhaul
Post by: Webby the Bear on 13 August 2014, 14:53:18
It's a really nice little project to do.

If the calipers are working (and you can push the piston back with ease) i'm not sure whether you can re-use the existing parts  :-\ but you will need to replace those things if the caliper is bound up.

It's a nice little project to do. i did some at college.

Note though you'll need compressed air to push the piston out. If not you can put a fitting in to the inlet and fill with grease til it pops out

keep ya fingers well away tho ;)
Title: Re: caliper overhaul
Post by: vauxsull on 13 August 2014, 15:07:02
Taking them to work tomorrow to get them degreased and get fitter to drill out snapped bleed nipple... Doing a 4 on 4 off shift pattern gives me plenty of free time to do do stuff like this... Eases the boredom. :y
Title: Re: caliper overhaul
Post by: vauxsull on 14 August 2014, 13:01:40
Right then. £120 delivered gets me all the seals and pistons to do all calipers for a firm called "big red" is this a bargain of the century or do I look elsewhere?
Title: Re: caliper overhaul
Post by: Marks DTM Calib on 14 August 2014, 16:06:43
The Omega callipers are bullet proof, if the dust seals are all ok then don't touch the workings as you risk resulting in a non working part with potentially inferior seals in it.

Just clean them up well and paint them.  :y
Title: Re: caliper overhaul
Post by: vauxsull on 14 August 2014, 16:13:44
Too late my friend.. All been stripped apart . Seals and pistons... One piston was goosed and 2 seals split... This is a spare set ive acquired and will clean up and rebuild as and when.. Just didn't know if the price for repair kit is a good price or not.
Title: Re: caliper overhaul
Post by: Marks DTM Calib on 14 August 2014, 16:33:31
Sounds expensive to me to be honest!

If the dust seals were ok then the damage will have been done in disassembly I suspect.
Title: Re: caliper overhaul
Post by: vauxsull on 14 August 2014, 16:34:40
They where disassembled because of the damage not due to.
Title: Re: caliper overhaul
Post by: Webby the Bear on 14 August 2014, 17:18:57
I still maintain it's a nice project (what the OP said he wanted to do in his first post) and something you can be proud of :)

£120 does sound a tad expensive. Were there any other kits available? Having said that a brand new calliper is just over £100 so after doing the work you get 4 new callipers + sense of satisfaction for doing it  :y

Note that when the square cut seal's removed there'll be a bunch of rust in the groove where it lives. Be sure to also nail that with a wire brush otherwise that'll be as bad as using the rusty old pistons.

Ps..... photos of the project would be great  :y :y :y
Title: Re: caliper overhaul
Post by: vauxsull on 14 August 2014, 18:12:04
If i knew how to upload images on here I would have dome ir ages ago  ;D
Title: Re: caliper overhaul
Post by: biggriffin on 14 August 2014, 21:24:39
That is expensive for two sets of seals and pistons, you should be able to get 2 exchange calipers for £120.
Seal kits from biggred are normally about £20 per caliper, I've yet to replace a piston, normally just polish them up with autosol polish.
Title: Re: caliper overhaul
Post by: vauxsull on 15 August 2014, 05:19:49
That price was for a repair kit for 4 calipers
Title: Re: caliper overhaul
Post by: biggriffin on 15 August 2014, 08:34:53
That price was for a repair kit for 4 calipers

That sounds better£120 for all 4 callipers.
Title: Re: caliper overhaul
Post by: vauxsull on 15 August 2014, 08:55:47
I shall buy them then... Never done this job before so had no idea on costs.. :y