Rear Brakes

[kmabo]

hi, is it easy to fit rear brake discs and pads on the galaxy.....mine need doing. ta. :unsure:

[chauf4]

Very easy.

 

Did my pads a couple of months ago but I have not changed the disc's.

 

You will need the caliper winding tool in order to do push back the winding caliper piston.

 

It's simply a case of taking the wheel off. Un-do the 2 bolts that hold the caliper in place, work the caliper off the disc, take the pads out, use the winding tool to push back the piston. Take the disc off (this bit I didn't do but if it's like the front there should be a retaining bolt/screw that holds it in place, un-do this and take the disc off) Then do everything in reverse to put it back together, except you won't need to use the winding tool again.

 

I know these instructions are a little basic but it is a very easy job with the right tools.

[JohnR]

It is a relatively easy job, but note that the calliper fixing bolts can be VERY tight! It is advisable to soak them in WD40 the night before. The front ones are even worse, needing a 27mm socket and long breaker bar to even stand a chance! Think the back ones just need an 18mm one.

[chauf4]

John, I've got no chance of remembering the sizes of the sockets, struggle to remember yesterdays dinner :blink: but you are very correct in saying they are hard to undo. I seem to remember having to create greater leverage to get the blasted things to turn. Edited December 20, 2007 by chauf4

[stevie m]

Hi kambo, I have changes my discs and pads in the last few weeks and its so easy to do. If I remember the retaining bolt for the discs is an allen key type. You will need a piston winding tool but I was sold one that didn't fit by my local parts shop. So I used a pair of long nose plyers. I had to apply a bit of presure when winding them back, so I refitted the calipers without the discs and did it then. A word of warning there are different type of discs and pads I think so make sure you get the right ones as sometimes even shops give them out wrong as i found out, they supplied me with the wrong pads and i had to wait a couple of days till they got new stock. I hope this has helped.

 

Merry Christmas Everyone

 

:blink:

[Beyond Help?]

It is a relatively easy job, but note that the calliper fixing bolts can be VERY tight! It is advisable to soak them in WD40 the night before. The front ones are even worse, needing a 27mm socket and long breaker bar to even stand a chance! Think the back ones just need an 18mm one.

You do not remove the mounting brackets when you change the pads, they are thread-locked in, that is why they are so tight. The brakes are of a floating caliper design, you remove the slider pins using a (7mm I think) hex headed key and lift the caliper off the bracket. Did you thread-lock your mounting bracket bolts back in? You should really use new ones as they are self locking, but thread-lock would suffice.

 

Sometimes a little knowledge can be a dangerous thing.

[JohnR]

"Sometimes a little knowledge can be a dangerous thing."

 

 

READ THE OP! He is changing disks as well. I replaced disks and pads all round when I did it, so HAD to remove the mounting bolts as he will. Replacing the bolts themselves is NOT required. They are coated with a threadlock compound from new which gives them the greenish colour. Use of Loctite threadlock (222 or similar) is well sufficient, and what most garages would do. Locking (single use) nuts such as Nylocs would be a different matter and should only be used once (as on the knuckles on the front wishbones for instance).

 

Before spouting as quoted above, make sure you know who you are talking to. I am a chartered mechanical engineer, with a PhD in machinery design and over 25 years of experience!

(www.CoalescentSolutions.co.uk)

 

John

(slightly offended!)

Edited December 21, 2007 by JohnR

[adrianf.]

Only slightly John, id never have guessed :blink:

[Beyond Help?]

I do apologies John, I was booking a service for someone and skimming through at the same time, and indeed your correct, the brackets do need to come off if your changing the rotors too.

[JohnR]

No worries! A couple of pints down the pub lunchtime and I'm feeling much better!

[mk2vr6]

BSc, PhD, CEng, MIMechE...... mmmm john at work earlier ... http://www.youtube.com/watch?v=QFQyib5ZQZY

[gregers]

so youve recently finished your apprenticeship then john :o :o

[JohnR]

BSc, PhD, CEng, MIMechE...... mmmm john at work earlier ... http://www.youtube.com/watch?v=QFQyib5ZQZY

 

Nah....that's just my evening job! :rolleyes: