Omega Owners Forum - Replacement of rear brake pads...

Psychoca Senior Member Offline Posts: 716 Peterborough Gender: Drives: Omega 2.5TD Estate (chipped)	Replacement of rear brake pads... 06. May 2011 at 15:28 Just wondering, is there a special tool I need, or can I use my usual misuse of a G-Clamp???
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_Baggy

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Posts: 391
North Hants

Re: Replacement of rear brake pads...
Reply #1 - 06. May 2011 at 15:34

I do believe the piston pops back in the same way the fronts do as the rear shoes responsible for the handbrake are inside the disc where it slots over the hub assembly.
The wind back tool is only required for vehicles that use the disc pads themselves as the handbrake.

PS
Don't forget to unscrew the cap on the brake fluid reservoir, and apply the pressure from the G clamp slowly to avoid blowing seals back on themselves.

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« Last Edit: 06. May 2011 at 15:36 by _Baggy »

Who is General Failure, and why is he reading my hard drive?

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geoffr70 Omega Knight Offline Join the 3 litre club! Then the 10.5 l club woo! Posts: 1881 Sunderland Gender: Drives: 2000 f/l 3.0 Elite Saloon auto, 2000 f/l 3.0 MV6 Saloon manual, Dennis RS133 (occasionally!)	Re: Replacement of rear brake pads... Reply #2 - 06. May 2011 at 15:35 Psychoca wrote on 06. May 2011 at 15:28: Just wondering, is there a special tool I need, or can I use my usual misuse of a G-Clamp??? G clamp, with old brake pad
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Psychoca Senior Member Offline Posts: 716 Peterborough Gender: Drives: Omega 2.5TD Estate (chipped)	Re: Replacement of rear brake pads... Reply #3 - 06. May 2011 at 15:41 Thought I could, its just some have to be wound back on the rears for some reason...
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Marks DTM Calib Administrator Offline Ex Member Posts: 25671 Northern Hemisphere Gender: Drives: Astra J, Mum Bus, Dexta Tractor, 108 DMU wip	Re: Replacement of rear brake pads... Reply #4 - 06. May 2011 at 15:48 I always open the bleed screw as this a) Makes it much easier b) Changes the old brake fluid in the caliper c) Ensures mater cylinder seals are not damaged
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TheBoy Administrator Offline TBE has an MOT! Posts: 64817 Brackley, Northants Gender: Drives: 98 MV6, 03 Elite, 00 25, 89 ZX10	Re: Replacement of rear brake pads... Reply #5 - 06. May 2011 at 18:20 Remember the rears have 2 pistons, so 2 clamps required
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amba

Omega Baron

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Posts: 2151
Medway towns
Gender: male

Drives: 1998 2.5 Elite Auto saloon.Fitted with 3.0 cams and Irmscher Alloys.

Re: Replacement of rear brake pads...
Reply #6 - 06. May 2011 at 20:21

I find it easier to use the old pad, slightly slacken of the blead nipple to expell old fluid in caliper ,and push the piston back in with a wide jawed oil filter removal wrench.

Wide enough to reach around calliper and using the old pad and a small block of wood to avoid marking the back of the calliper ,just squeeze the clamps jaws togeter and the piston just pushes in.

Fit new pads and then couple of pumps on the pedal with the easybleed one-way tube valve attached to get new fluid into the calliper,top up master cylinder and jobs a good ,n.

Take it easy for first few 100 miles to get the bite back into the pads.

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Martin Imber Over Active Poster Offline LPG Omega V6 - Keyfobs Rebuilt Posts: 20110 Worcester Gender: Drives: 2001 Omega 2.6CD LPG & 3.0 cams	Re: Replacement of rear brake pads... Reply #7 - 07. May 2011 at 08:53 Marks DTM Calib wrote on 06. May 2011 at 15:48: I always open the bleed screw as this a) Makes it much easier b) Changes the old brake fluid in the caliper c) Ensures mater cylinder seals are not damaged I think he would be happy to have 2 headlights
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Martin Imber Over Active Poster Offline LPG Omega V6 - Keyfobs Rebuilt Posts: 20110 Worcester Gender: Drives: 2001 Omega 2.6CD LPG & 3.0 cams	Re: Replacement of rear brake pads... Reply #8 - 07. May 2011 at 08:55 I go through pads quite fast but never had a sticking caliper beyond needing to grease sliders on single piston jobs
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TheBoy Administrator Offline TBE has an MOT! Posts: 64817 Brackley, Northants Gender: Drives: 98 MV6, 03 Elite, 00 25, 89 ZX10	Re: Replacement of rear brake pads... Reply #9 - 07. May 2011 at 11:11 Martin Imber wrote on 07. May 2011 at 08:55: I go through pads quite fast but never had a sticking caliper beyond needing to grease sliders on single piston jobs Rears are more prone to seizing IME... ...kinda makes sense really
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tunnie

Over Active Poster

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Posts: 22520
London, W3
Gender: male

Drives: 2.2 CD (LPG'd) & BMW R1200 GS

Re: Replacement of rear brake pads...
Reply #10 - 07. May 2011 at 12:38

everytime i've come to do rear pads they have been stuck fast and needed the mouting bracket removed!

Jimbob pointed me to these:

http://www.machinemart.co.uk/shop/product/details/cht268-disc-brake-piston-sprea...

They really did the business on a seized piston.

Although I forgot to release the bleed nipple when pushing the pisons back in Embarrassed

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Do you break V6's as often as TheBoy? Then you need tunnie's towing services, recovery costs are just the humiliation of being towed by 2/3's of an engine

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