Register Login
Lamps by Post - For all your lighting needs
Reply
 
Thread Tools
Old 21-12-2013   #1
Join Date: Dec 2013
Posts: 2
Thanks: 0
Trader Rating: 0
United Kingdom 
Rear brake caliper sticking

Hi everyone,

For about a month the passenger rear wheel has been making a metal on metal noise when hot and my alloy wheel and brake disc are really hot after about 10 miles or so of driving.

I took it to a garage who said the brake caliper was stuck and they took it apart cleaned it and then put it back together. A week later and it's doing it again. I don't know a lot about cars and don't want to pay for things I don't necessarily need to have done. Do I need a new caliper? I can't bear the noise any longer.

Any information or advice would be appreciated. My car is a 2007 Fiat Stilo Blue.

Thanks.
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

tara23 is offline Reply With Quote Quote 
Old 21-12-2013   #2
Join Date: Feb 2007
Location: West Yorkshire
Posts: 1,689
Thanks: 147
Trader Rating: 0
Xen has donated!
United Kingdom 
Re: Rear brake caliper sticking

Its the easiest solution to be honest - that's what I ended up doing. You could go for a proper caliper refurb but when you can pick up a new one for less than 80 a side, I just decided to do that instead.

I did both sides just for even braking as I figured the other sides probably not working at its best either if one sides got to the point of seizing.
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

Xen is offline Reply With Quote Quote 
Old 21-12-2013   #3
Speed Reader of the Year!
 
Most Easterly Pandas's Avatar
Join Date: Aug 2007
Posts: 39,161
Thanks: 1220
Trader Rating: 2
Most Easterly Pandas has donated!
Bolivia 
Re: Rear brake caliper sticking

Yes you'll need the caliper replacing. Can either be brand new, or a reconditioned unit
__________________
Most Easterly Panda's - Panda'ing in East Anglia
Stockest of mk2 Panda Parts, PM for any parts requests
2 White Classic Panda Selecta's, 1989 Panda 750L,
2013 Toyota Prius Plug-In & 2009 Panda Eleganza
Most Easterly Pandas is offline Reply With Quote Quote 
Old 21-12-2013   #4
Join Date: Nov 2007
Location: south midlands
Posts: 815
Thanks: 52
Trader Rating: 0
850kd has donated!
United Kingdom 
Re: Rear brake caliper sticking

Two things . (maybe 3) Search this forum and you will find lots of entries on this issue.
To cut a long story short ........
Replace the caliper with a new one, (aftermarket or refurbished ones are very much cheaper - about 50-70 each - than a Fiat original). Check out, at least, the handbrake cable and expect too replace this too on the side affected at least. (Cost about 20) When you replace the pads make sure they slide easily in the caliper and use copper slip sparingly on the slides.
After this should last for years with regular maintenance to the pad slides.
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

850kd is offline Reply With Quote Quote 
Old 21-12-2013   #5
Join Date: Feb 2007
Location: West Yorkshire
Posts: 1,689
Thanks: 147
Trader Rating: 0
Xen has donated!
United Kingdom 
Re: Rear brake caliper sticking

Worth pointing out I had the calipers of 3 or 4 times in the space of about a fortnight trying to 'rescue' them before I gave up and decided to just do it properly. Even after cleaning them up as best you can, they're just gonna end up stuck again a few days down the line.
Likes 850kd liked this post
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

Xen is offline Reply With Quote Quote 
Old 21-12-2013   #6
Join Date: Dec 2013
Posts: 2
Thanks: 0
Trader Rating: 0
United Kingdom 
Re: Rear brake caliper sticking

Ok I will get it replaced thanks for all the info the noise is so annoying I had to turn my radio up to drown it out :-p
Likes saw liked this post
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

tara23 is offline Reply With Quote Quote 
Old 12-07-2014   #7
Join Date: Jul 2012
Posts: 119
Thanks: 0
Trader Rating: 0
Slovenia 
Re: Rear brake caliper sticking

If anyone could comment on this it would be very appreciated

It appears that my rear right caliper is slightly sticking or at least so it seems. The reason I'm posting here is because it's not a straightforward problem - when the piston seized on my previous car it was clear what was wrong; the rear disc was very, very hot, it smelled like someone was using an angle grinder when you stepped out if the car and of you tried to push the piston back it it didn't really want to move.

What I have on my Stilo is different - rear right disc is only slightly hotter that the left one (if some braking was done) or a bit warm if I stop without braking and check the temperature. The temperature difference isn't that great - if I can touch the left disc I can also touch the right one, but I still feel the difference.

If I jack the car up the wheel on the left spins freely, but the one on the right stops after 3-4 turns. It gets weirder - when I was changing the pads and I had to rewind the piston, it moved with ease! I don't even have a rewind tool, just a homemade key that fits into the slots on the piston and then you turn it and push it in at the same time by hand - and it went in with ease.

Of course I also cleaned and lubricated all the parts with proper greases (sliding pins with silicone paste and copper grease for pads) so that's not an issue. I also checked that the piston creases are in line with the nipples on the pads and I even checked the handbrake mechanism which it works - I had my hand on the moving part on the caliper while someone was in the car pulling the handbrake and it releases normally.

Is there anything else I could check? The only thing that I think helped a bit was changing the caliper mount because the outer pad was a bit hard to get in on the old one, but it didn't completely solve the problem.

Thank you!
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

fruchty is offline Reply With Quote Quote 
Old 12-07-2014   #8
Join Date: Apr 2008
Location: North Scotland
Posts: 642
Thanks: 51
Trader Rating: 0
mhowse has donated!
United Kingdom 
Re: Rear brake caliper sticking

When you tried the handbrake and say it released normaly, if the wheel was still sticking slightly did you try tapping gently on the handbrake lever on the caliper with small hammer or tool to test if wheel spins more freely, if so then the lever is not releasing completely either due to sticking handbrake cable or sticking lever arm on the caliper to see which then detach cable end from caliper whilst caliper still fitted to brake mount/wheel on car and check caliper h/brake lever using hand if not release as should then this lever arm is sticking I usualy put few drops of lubricant on pivot point a couple of times each year and jiggle till working as they should as the lever arms are in a place to get gunked up with road muck.

If lever is working correctly and wheel spins fine without handbrake cable attached check what you can of the outer of the cable for breaks in the protection and check the cable can be pushed and pulled through the cable shrouding freely, then either replace or lubricate till free.

Also when you replaced calipers after cleaning and greasing did you set handbrake cable correctly by pumping the brake pedal with a heavy foot approx 20 times before setting the handbrake cables
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides


Last edited by mhowse; 12-07-2014 at 17:50.
mhowse is offline Reply With Quote Quote 
Old 12-07-2014   #9
Join Date: Jul 2012
Posts: 119
Thanks: 0
Trader Rating: 0
Slovenia 
Re: Rear brake caliper sticking

Thank you for your reply! I think I need a new caliper.

I took the wheel off and tapped on the handbrake lever with a hammer, but it didn't move any more backwards. When the cable is loosened you can also move it with your hand, so I guess it works.

Then I noticed that the inner pad I a bit closer to the disc than the outer and I gently pushed it back with a flat screwdriver - the disc finally spun freely. However, when you pull the handbrake and release it, the inner pad sticks too close (even though the lever and the cable come all the way back) - if I push the pad back again, the disc spins again. So I'm guessing something inside the caliper handbrake mechanism isn't working properly? Because the lever and the cable do return...
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

fruchty is offline Reply With Quote Quote 
Old 13-07-2014   #10
Join Date: Apr 2008
Location: North Scotland
Posts: 642
Thanks: 51
Trader Rating: 0
mhowse has donated!
United Kingdom 
Re: Rear brake caliper sticking

If you have not already tried , then giving the pad and mounting sliders a good clean ,and filing off slightly any rust visible, then little copper grease on where they mount in the pad slider, could be worth a try before spending on a new caliper as you noticed the pad was not releasing grip on disc, or if it is the caliper itself it could have a seal that is going bad that does not allow the piston to retract the slight amount it is supposed to after pressure applied to piston.
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

mhowse is offline Reply With Quote Quote 
Old 13-07-2014   #11
NobodyBlamesTheHappyGuy!
 
Morty Mort's Avatar
Join Date: Jun 2003
Location: 69 North
Posts: 2,831
Thanks: 132
Trader Rating: 2
Morty Mort has donated!
Norway 
Re: Rear brake caliper sticking

Rust will build up between the anti rattle clips and the caliper metal. This prevents the pads to slide normally, and will not release properly when not braking. Remove the caliper, pads and clips and use a flat screwdriver to scale off the rust (use force). Fit the clips with copper paste, and refit the unit. If the clips are rusted, get new ones. The pads will now slide perfectly...

M.
__________________
jet blue. eibach pro system. omp bar. gsr in. supersprint out. hella eyes. phoenix gold watts.

member of the 5-door massive attack.
Morty Mort is offline Reply With Quote Quote 
Old 13-07-2014   #12
Join Date: Jul 2012
Posts: 119
Thanks: 0
Trader Rating: 0
Slovenia 
Re: Rear brake caliper sticking

I have cleaned everything, including the caliper mount completely numerous times but without any success really.
Everything is greased with copper paste also, and the sliding pins with silicone paste

The pads move with ease inside their mounts and the outer one retracts, but the inner one stays pushed against the disc.
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

fruchty is offline Reply With Quote Quote 
Old 22-07-2014   #13
Join Date: Jul 2012
Posts: 119
Thanks: 0
Trader Rating: 0
Slovenia 
Re: Rear brake caliper sticking

So I've changed my rear right caliper today and things are still not as they should be... I'm baffled to be honest.

Under heavy braking, the car pulls slightly to the right - you can clearly feel and hear (the tyre) that the rear right wheel is braking harder than the left one. I have bleed both so they are 100% without air.
When you jack the car up, the rear right wheel now spins nicely, but stops after a while because the pads are brushing against the disc which I think is normal - on the left side however, the wheel spins freely, as if the pads don't even brush against the disc. I have no idea why this is.

This is not all - when I went to adjust the handbrake (yes, I mashed the pedal 20 times before doing so in fact I even went for a test drive) I've noticed that only the right caliper grabs! When moving slowly and pulling the handbrake on grass only the right wheel draws a line, but not the left...
When the handbrake is released, you can push with hand forward the lever on the right side but not on the left - it's as if it's stuck, but it doesn't grab the disc... It's really bizarre.



One time last year I went about adjusting the handbrake and I adjusted it very poorly... After a few kms when I stopped the car, the rear left disc was glowing red (but not the right one - in fact it wasn't even that hot, so here's another weird thing (this was with the old caliper of course)). After that I slackened the cables and adjusted it better and everything appeared to be normal... Is it possible that I damaged the left caliper that time?
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides


Last edited by fruchty; 22-07-2014 at 14:59.
fruchty is offline Reply With Quote Quote 
Old 22-07-2014   #14
Join Date: Jul 2012
Posts: 119
Thanks: 0
Trader Rating: 0
Slovenia 
Re: Rear brake caliper sticking

I did some checks again just now and I think I'll have to order a new left caliper, too. The handbrake lever on the left caliper in very hard to move and moves a lot less than the lever on the right caliper (which is new) - I'm guessing this is the reason than only the right wheel holds when you pull the handbrake and since I can't even pass the technical inspection like this I'll just order a new one and hope that everything else will resolve itself with a new caliper.
__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

fruchty is offline Reply With Quote Quote 
Old 22-07-2014   #15
Join Date: Jul 2012
Posts: 119
Thanks: 0
Trader Rating: 0
Slovenia 
Re: Rear brake caliper sticking

Watching this video I think it's possible that the handbrake on the left caliper hasn't worked for some time now and this would explain why the pads aren't as close to the disc on the left side as they are on the right:

__________________
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

fruchty is offline Reply With Quote Quote 
Reply
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Posting Rules
You may not post new threads
You may not 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

Forum Jump
Similar Threads
Thread Thread Starter Forum Replies Last Post
(T) Rear Brake Sticking.... eddt1 Cinquecento / Seicento 32 01-06-2013 13:24
(G) Rear brake caliper Alex1985 X1/9 1 23-09-2012 15:41
(G) Sticking brake disc caliper unostar Uno 12 05-02-2011 23:10
(T) 1.2 rear brake caliper Ffoxy Stilo 6 01-06-2009 11:55
(T) Rear Brake Caliper the frog Multipla 1 25-07-2008 21:25