Notices
Wheels, Tyres & Brakes

4 Pot Caliper refurbing

Thread Tools
 
Search this Thread
 
Old May 4, 2013 | 07:16 PM
  #1  
jaygsi's Avatar
jaygsi
Thread Starter
Scooby Regular
15 Year Member
Liked
Loved
Community Favorite
iTrader: (46)
 
Joined: Apr 2007
Posts: 14,530
Likes: 258
From: uk
Question 4 Pot Caliper refurbing

I didn't realise how bad my brakes were until after driving in a none turbo and nearly going though the window screen when breaking

I'm going to have ago at refurbing them myself, is this wise?

I've seen a few company's online say do not refurb yours calipers by yourself, trying to scare you off.

But saying that, its properly because they want the work. Any comments?
Reply
Old May 4, 2013 | 07:23 PM
  #2  
Godspeed Brakes's Avatar
Godspeed Brakes
THE braking specialist
25 Year Member
Liked
iTrader: (259)
 
Joined: Dec 2000
Posts: 8,021
Likes: 57
From: www.godspeedbrakes.co.uk
Default

Its easy enough if your mechanically minded , we sell loads of piston and seal kits for owners to do it themselves
Cheers Ian
Reply
Old May 4, 2013 | 07:54 PM
  #3  
paul98typer's Avatar
paul98typer
Scooby Regular
 
Joined: Oct 2012
Posts: 86
Likes: 1
From: rotherham
Default

Did my rears thursday. Straight forward enough. Getting the new pistons back in was hard work till i rigged up a homemade clamp. Good opportunity to flush all your old fluid out too. Got my refurb kit from scoobyworx.
Reply
Old May 4, 2013 | 08:18 PM
  #4  
5cooby1's Avatar
5cooby1
Scooby Regular
20 Year Member
iTrader: (18)
 
Joined: Jan 2005
Posts: 809
Likes: 0
From: Oxfordshire
Default

Are you going to have then sand blasted and are you painting them or powder coating them.

Thanks
Reply
Old May 4, 2013 | 08:21 PM
  #5  
jaygsi's Avatar
jaygsi
Thread Starter
Scooby Regular
15 Year Member
Liked
Loved
Community Favorite
iTrader: (46)
 
Joined: Apr 2007
Posts: 14,530
Likes: 258
From: uk
Default

OK cheers, not sure, been looking at sand blasting kits, but knowing me i will damage myself. So thinking rub down myself and respray using VHT paint.
Reply
Old May 4, 2013 | 08:28 PM
  #6  
Kwik's Avatar
Kwik
Scooby Regular
iTrader: (10)
 
Joined: Feb 2007
Posts: 6,140
Likes: 0
From: Gone Dark
Default

I've done a couple of sets myself now...

https://www.scoobynet.com/920019-ama...-build-11.html

Give me a shout if you need any advice.
Reply
Old May 4, 2013 | 08:42 PM
  #7  
5cooby1's Avatar
5cooby1
Scooby Regular
20 Year Member
iTrader: (18)
 
Joined: Jan 2005
Posts: 809
Likes: 0
From: Oxfordshire
Default

Originally Posted by jaygsi
OK cheers, not sure, been looking at sand blasting kits, but knowing me i will damage myself. So thinking rub down myself and respray using VHT paint.
Take pics step by step please have you got a spare set to try before
Reply

Trending Topics

Old May 5, 2013 | 04:34 PM
  #8  
jaygsi's Avatar
jaygsi
Thread Starter
Scooby Regular
15 Year Member
Liked
Loved
Community Favorite
iTrader: (46)
 
Joined: Apr 2007
Posts: 14,530
Likes: 258
From: uk
Default

Thanks Kwik, i'm sure i will have planty of questions

Can take few pics, no not got spare set though, have you tried this before?
Reply
Old May 5, 2013 | 04:40 PM
  #9  
tubbytommy's Avatar
tubbytommy
BANNED
iTrader: (20)
 
Joined: Mar 2010
Posts: 16,950
Likes: 1
From: crawley :)
Default

Kwik
I have a friend who os going to refurb some wrx four pots like you have done.
Do you split them in half or paint in 1 piece.
The brakes are fine piston and seal wise just need tidying up
Reply
Old May 5, 2013 | 05:10 PM
  #10  
5cooby1's Avatar
5cooby1
Scooby Regular
20 Year Member
iTrader: (18)
 
Joined: Jan 2005
Posts: 809
Likes: 0
From: Oxfordshire
Default

Originally Posted by jaygsi
Thanks Kwik, i'm sure i will have planty of questions

Can take few pics, no not got spare set though, have you tried this before?
Hi mate I've not tried but looking at my options
Reply
Old May 5, 2013 | 05:47 PM
  #11  
jaygsi's Avatar
jaygsi
Thread Starter
Scooby Regular
15 Year Member
Liked
Loved
Community Favorite
iTrader: (46)
 
Joined: Apr 2007
Posts: 14,530
Likes: 258
From: uk
Default

Ok caliper removed and not in best condition, looked better nick than was as has had fresh coat of paint in past i'm guessing, 2 of the pistons are wrecked, you can see the corrosion

Reply
Old May 5, 2013 | 06:07 PM
  #12  
5cooby1's Avatar
5cooby1
Scooby Regular
20 Year Member
iTrader: (18)
 
Joined: Jan 2005
Posts: 809
Likes: 0
From: Oxfordshire
Default

Not good then what are the sleeves where pistons go like.

Are you refitting with stainless ones
Reply
Old May 5, 2013 | 08:32 PM
  #13  
Kwik's Avatar
Kwik
Scooby Regular
iTrader: (10)
 
Joined: Feb 2007
Posts: 6,140
Likes: 0
From: Gone Dark
Default

Don't reuse any of them, get all new pistons bud. Keep the buggered ones to use when spraying though.
Reply
Old May 5, 2013 | 08:46 PM
  #14  
jaygsi's Avatar
jaygsi
Thread Starter
Scooby Regular
15 Year Member
Liked
Loved
Community Favorite
iTrader: (46)
 
Joined: Apr 2007
Posts: 14,530
Likes: 258
From: uk
Default

Thats what i though, would it be ok to push them in half way and spray the calipers then?

I should of rubbed down calipers before dismatling.

Last edited by jaygsi; May 5, 2013 at 09:44 PM.
Reply
Old May 5, 2013 | 10:34 PM
  #15  
myblackwrx's Avatar
myblackwrx
Scooby Regular
iTrader: (1)
 
Joined: Mar 2006
Posts: 8,787
Likes: 1
From: Dorset
Default

Get the calipers shot/grit blasted,clean up the bores not sure if you can get them shot blasted though,mask the bits up that shouldn't be painted and get them powder coated.

the price of shot blasting and powder coating is very cheap imo (recently had an inlet manifold and H brace stripped and powder coated for £50 cash )
Reply
Old May 5, 2013 | 10:54 PM
  #16  
dj219957's Avatar
dj219957
Scooby Regular
20 Year Member
 
Joined: Dec 2003
Posts: 3,708
Likes: 1
From: Staffs
Default

yep they are all shagged. when i get in the scoob after driving the bm all week i have to force the pedal down hard to stop. they are good brakes but the servo assist isnt the same as a modern car.
Reply
Old May 7, 2013 | 10:43 AM
  #17  
jaygsi's Avatar
jaygsi
Thread Starter
Scooby Regular
15 Year Member
Liked
Loved
Community Favorite
iTrader: (46)
 
Joined: Apr 2007
Posts: 14,530
Likes: 258
From: uk
Default

Contacted company bout blasting calipers, might spray myself

Starting rubbing then down by hand, tempted buy a shot blasting kit there not that bad on price

Calipers look a right mess


Last edited by jaygsi; May 7, 2013 at 09:14 PM.
Reply
Old May 7, 2013 | 08:50 PM
  #18  
Kwik's Avatar
Kwik
Scooby Regular
iTrader: (10)
 
Joined: Feb 2007
Posts: 6,140
Likes: 0
From: Gone Dark
Default

It depends how quickly you need them mate.
Reply
Old May 7, 2013 | 09:13 PM
  #19  
jaygsi's Avatar
jaygsi
Thread Starter
Scooby Regular
15 Year Member
Liked
Loved
Community Favorite
iTrader: (46)
 
Joined: Apr 2007
Posts: 14,530
Likes: 258
From: uk
Default

Pistons have come up better with a clean, top 2 are no good as one has rust on bore and other has chip, very tiny

Reply
Old May 7, 2013 | 09:43 PM
  #20  
Kwik's Avatar
Kwik
Scooby Regular
iTrader: (10)
 
Joined: Feb 2007
Posts: 6,140
Likes: 0
From: Gone Dark
Default

It's up to you, but think that those little pits will rub against the seal, and that seal saves you from hitting a wall. For what it costs for some stainless (or Ian at godspeed may be able to help you out with some standard non stainless pistons for less than the stainless) its worth doing for peace of mind, and you won't have to do all this again.

What I did was buy some oxalic acid from ebay - http://www.ebay.co.uk/itm/1kg-Oxalic...item1e6cad1a49

Whack them in that for a week or so. Take them out, rinse them and then use a wirebrush. Mine went from this....



To this once primered....



And yes, when you spray leave putting the new seals and pistons in until last, and spray with the old piston's just sitting inside the caliper.
Reply
Old May 7, 2013 | 09:47 PM
  #21  
5cooby1's Avatar
5cooby1
Scooby Regular
20 Year Member
iTrader: (18)
 
Joined: Jan 2005
Posts: 809
Likes: 0
From: Oxfordshire
Default

Hi jay I too would replace these as said above.

What sand blasting kit you thinking of

Also are you renewing the caliper bolts that hold the two pieces together
Reply
Old May 7, 2013 | 09:55 PM
  #22  
Kwik's Avatar
Kwik
Scooby Regular
iTrader: (10)
 
Joined: Feb 2007
Posts: 6,140
Likes: 0
From: Gone Dark
Default

This is how I sprayed mine...



Then finished the job with them bolted together.

As well as godspeed have a look here...
http://www.scoobyworx.com/brakes-13-c.asp

Last edited by Kwik; May 7, 2013 at 09:57 PM.
Reply
Old May 7, 2013 | 11:51 PM
  #23  
jaygsi's Avatar
jaygsi
Thread Starter
Scooby Regular
15 Year Member
Liked
Loved
Community Favorite
iTrader: (46)
 
Joined: Apr 2007
Posts: 14,530
Likes: 258
From: uk
Default

I wasn't going to brake the calipers open as i've heard they can be a pain to seal up?

Can't see the need to either.

Good call on that Oxalic acid Cleaner & rust remover, looks the thing i need

Will replace all pistons, no point doing half job

Last edited by jaygsi; May 8, 2013 at 10:13 AM.
Reply
Old May 8, 2013 | 04:00 PM
  #24  
Kwik's Avatar
Kwik
Scooby Regular
iTrader: (10)
 
Joined: Feb 2007
Posts: 6,140
Likes: 0
From: Gone Dark
Default

Originally Posted by jaygsi
I wasn't going to brake the calipers open as i've heard they can be a pain to seal up?

Can't see the need to either.

Good call on that Oxalic acid Cleaner & rust remover, looks the thing i need

Will replace all pistons, no point doing half job
Scoobyworx do the caliper seals for a couple of quid. The bolts can be a pain to loosen.
Reply
Old May 8, 2013 | 07:19 PM
  #25  
SwissTony's Avatar
SwissTony
Scooby Regular
20 Year Member
iTrader: (19)
 
Joined: Mar 2003
Posts: 28,233
Likes: 14
From: In the Doghouse
Default

so many good guides on here on how to paint your calipers correctly


And now for a guide how NOT to paint them

http://www.wikihow.com/Paint-Brake-Calipers

See if you can spot the obvious mistake and talk about overspray
Reply
Old May 8, 2013 | 08:50 PM
  #26  
Kwik's Avatar
Kwik
Scooby Regular
iTrader: (10)
 
Joined: Feb 2007
Posts: 6,140
Likes: 0
From: Gone Dark
Default

Reply
Old May 9, 2013 | 02:02 PM
  #27  
jaygsi's Avatar
jaygsi
Thread Starter
Scooby Regular
15 Year Member
Liked
Loved
Community Favorite
iTrader: (46)
 
Joined: Apr 2007
Posts: 14,530
Likes: 258
From: uk
Default

Oh dear. I've seen the video before though and was thinking of giving it a try
Reply
Old May 13, 2013 | 08:28 PM
  #28  
Kwik's Avatar
Kwik
Scooby Regular
iTrader: (10)
 
Joined: Feb 2007
Posts: 6,140
Likes: 0
From: Gone Dark
Default

How are you getting on Jay?
Reply
Old May 14, 2013 | 11:14 PM
  #29  
jaygsi's Avatar
jaygsi
Thread Starter
Scooby Regular
15 Year Member
Liked
Loved
Community Favorite
iTrader: (46)
 
Joined: Apr 2007
Posts: 14,530
Likes: 258
From: uk
Default

Getting there, just waiting on parts, decided to paint with VHT spray cans. Will update soon
Reply
Old May 14, 2013 | 11:19 PM
  #30  
GIBZY's Avatar
GIBZY
Scooby Regular
iTrader: (4)
 
Joined: May 2011
Posts: 1,472
Likes: 0
From: Merthyr Tydfil, South Wales
Default

Reply



All times are GMT +1. The time now is 03:28 PM.