Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: supersaw on 06 February 2012, 17:17:27

Title: Omega B 95' rear brakes doesn't work
Post by: supersaw on 06 February 2012, 17:17:27
Hey Guys ! ;)

the car: omega 2.0 16v, 1995.
The problem: rear brakes doesn't work and my rear disk brakes are very rusty.
When I push a brake pedal my brakes works only when my pedal is on the bottom (sorry, I'm not english native) and my whole braking performance is low. I pressurize my brakes (to ensure to have no air bubbles in the brake system), so my front brakes pressurize OK, I discarded brake liquid with some air bubbles in it. Now, on the rear end, my brake liquid doesn't discard. Brake liquid has no leaks.
So, I'm suspect that my master brake cylinder has a failure and thee brake liquid don't flow to the rear end.
I'm right ? Thanks for your help in advance.
Title: Re: Omega B 95' rear brakes doesn't work
Post by: jonathanh on 07 February 2012, 13:30:54
it could be a number of things

1 master cylinder

2. air in the brake lines ( which I doubt as you have pushed new fluid in)

3. a failing flexible hose ( which expands when the pedal is pushed meaning that no pressure gets to the rear brakes)

4. seized rear calipers - meaning they do not move.

suggest

A inspecting flexible hoses when someone applies the brakes - this will help eliminate 3

B  try slowly pushing the piston back in, but do it carefully - if there is a lot of resistance then suspect a seized piston - replace with new or refurbish.  this deals with 4

C you don't think you have air in the system ( but there can be air locks in the ABS unit.  If in doubt bleed again to be certain

D then strip the master cylinder and refurbish/replace

HTH



Title: Re: Omega B 95' rear brakes doesn't work
Post by: adey2 on 07 February 2012, 14:09:36
i had this on mine, turns out the rear pads had rusted solid to the caliper, changed pads and cleaned all crud out around pads, now work perfect
Title: Re: Omega B 95' rear brakes doesn't work
Post by: freecall666 on 08 February 2012, 04:50:34
clean every thing up and do the check list in maintenance.
also check the disc thickness against the recomended thickness.
Title: Re: Omega B 95' rear brakes doesn't work
Post by: supersaw on 08 February 2012, 07:13:04
Thanks guys ! I will check :y