Can worn discs cause sticking?
Can worn discs cause sticking?
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R1 Indy

Original Poster:

4,475 posts

205 months

Wednesday 24th August 2011
quotequote all
Im getting a bit of sticking from my rear brakes. After a good run, i can feel the heat from a good half foot away.

After having a good look the discs are probably ready for a change, there is a nice big lip, and the pads are not far behind.

So could this cause the sticking? or will it be the calipers?

I also take it this will explain the poor fuel consumption?

The car is a 2008 Alfa 159, has done 80K miles.

limjamrace

857 posts

174 months

Wednesday 24th August 2011
quotequote all
More likely to be a seized or partially seized caliper or the mechanical handbrake system.
Maybe a not so good flexible hose or a kink of such in the solid pipe.
Could save yourself a lot of money for just going in for a brske check at the Kwik/Halfords sort of thing. A brake inbalance will show up any fault if there is one. Don't get drawn into any massive repairs that may not need doing though.
Come back on here with the results first lol!

Jimmyarm

1,962 posts

200 months

Wednesday 24th August 2011
quotequote all
limjamrace said:
More likely to be a seized or partially seized caliper or the mechanical handbrake system.
Maybe a not so good flexible hose or a kink of such in the solid pipe.
Could save yourself a lot of money for just going in for a brske check at the Kwik/Halfords sort of thing. A brake inbalance will show up any fault if there is one. Don't get drawn into any massive repairs that may not need doing though.
Come back on here with the results first lol!
Do not go anywhere near a kwik fit or similar.

Get the discs and pads changed, any good independent or specialist will be able to tell you of anything else is up at the same time as you have to take it all apart smile

limjamrace

857 posts

174 months

Wednesday 24th August 2011
quotequote all
Jimmyarm said:
Do not go anywhere near a kwik fit or similar.

Get the discs and pads changed, any good independent or specialist will be able to tell you of anything else is up at the same time as you have to take it all apart smile
No i mean just to use their rolling road brake tester...Changing discs and pads will nilly is folly.

Jimmyarm

1,962 posts

200 months

Wednesday 24th August 2011
quotequote all
limjamrace said:
No i mean just to use their rolling road brake tester...Changing discs and pads will nilly is folly.
Not if they are both at the end of their lives it isn't....


Dr Doofenshmirtz

16,534 posts

222 months

Wednesday 24th August 2011
quotequote all
The callipers just need stripping down (properly) and cleaning.
Don't let anyone tell you that you need new callipers!!
Any good mechanic can do this, or even DIY - it's not hard.

Worn disks won't cause sticking.

R1 Indy

Original Poster:

4,475 posts

205 months

Wednesday 24th August 2011
quotequote all
yes the disc/pads are definally getting towards the end of there life, but if its not them causing the problem, i would rather leave them for now and get the real issue fixed.

i hadn't thought about the handbrake?

but the wheels are caped in dust so its deffinatly caliper/pad related.

i might take them apart and see if i can see anything obvious.

just wanted to know if worn disks can cause the problem?

NHK244V

3,358 posts

194 months

Wednesday 24th August 2011
quotequote all
R1 Indy said:
yes the disc/pads are definally getting towards the end of there life, but if its not them causing the problem, i would rather leave them for now and get the real issue fixed.

i hadn't thought about the handbrake?

but the wheels are caped in dust so its deffinatly caliper/pad related.

i might take them apart and see if i can see anything obvious.

just wanted to know if worn disks can cause the problem?
It's the other way round, it's the problem causing the thin discs and pads, rear calipers allways sieze as they do so little work on a front engined car that they rarely get hot enough to boil off any moisture in them.
99% of the time it's the handbrake part that is siezed and they can be a ditch to strip and clean! well more like a bh to re-assemble laugh the piston part is fairly easy to strip and re-assemble though so hopefully it's there the problem lays ?
Of course you could be lucky and find they have a small drum and shoe setup inside the disc whixh are easyer to work on? sorry i don't know your car that well at all to be more specific frown