Omega Owners Forum
Omega Help Area => Omega General Help => Topic started by: markfree on 22 August 2010, 19:34:43
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As above - tried all day saturday to remove but gave up in the end.
It's the inboard o/s pad which has stuck causing the caliper piston not too operate as the outboard pad is nearly worn down to it's limit - anyone had this problem?
Don't really want to take the caliper off as the brake pipe union to caliper nut is seized in solid and I would almost certainly round the nut if I persisted in un-doing it.
Any solutions to this problem would be appreciated :y
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Sounds like I am kinda quoting the obvious but...
Confirmed that yopu have tried clever application of levers, clever clouts with a lump hammer etc? I know there is a slide hammer type affair that hooks into the locating pin holes that may allow the pad to be released but, that said, i find its better to ensure the pad/piston is levered back at least a wee bit, before trying that.
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As above - tried all day saturday to remove but gave up in the end.
It's the inboard o/s pad which has stuck causing the caliper piston not too operate as the outboard pad is nearly worn down to it's limit - anyone had this problem?
Don't really want to take the caliper off as the brake pipe union to caliper nut is seized in solid and I would almost certainly round the nut if I persisted in un-doing it.
Any solutions to this problem would be appreciated :y
without taking the caliper off, all I could suggest is Plusgas/similar on the contact point bewtween the pad & the caliper, let it soak in for as long as you can ....... then beat the living **** out of the pad using a drift & big hammer ;D ;D ;D ;D
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I know there is a slide hammer type affair that hooks into the locating pin holes ....
;) :y :y
(http://i23.ebayimg.com/03/i/000/ae/06/6276_1.JPG) (http://cgi.ebay.co.uk/Girling-Disc-Brake-Pad-Slide-Hammer-Puller-/190303255668?pt=UK_Hand_Tools_Equipment)
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Don't see why you have to undo the bake pipe union to take the caliper off.
:-?
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I know there is a slide hammer type affair that hooks into the locating pin holes ....
;) :y :y
(http://i23.ebayimg.com/03/i/000/ae/06/6276_1.JPG) (http://cgi.ebay.co.uk/Girling-Disc-Brake-Pad-Slide-Hammer-Puller-/190303255668?pt=UK_Hand_Tools_Equipment)
cheers Andy. never had to use one yet, always managed to lever and 'persuade' recalcitrant pads to break free eventually.... ;)
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Don't see why you have to undo the bake pipe union to take the caliper off.
:-?
i certainly wouldn't as I think it creates undue strain on the pipework when you are fiddling with the non moving pad. Alwats better to have it afixed to the solid hub, in my experience....
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cheers Andy. never had to use one yet, always managed to lever and 'persuade' recalcitrant pads to break free eventually.... ;)
Niether have I ..... I've done the same as you. But I have seen a slide hammer extractor. :y
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BFH and a drift to persuade it to move.
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BFH and a drift to persuade it to move.
[size=18]SAMMY!!!!![/size] Come hither.... :D
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Don't see why you have to undo the bake pipe union to take the caliper off.
:-?
i certainly wouldn't as I think it creates undue strain on the pipework when you are fiddling with the non moving pad. Alwats better to have it afixed to the solid hub, in my experience....
Maybe I was just lucky then. New discs and pads on front and new pads and shoes on rear and not a drop of fluid spilled. All four calipers were removed, I was of course aware not to strain the rigid pipes.
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BFH and a drift to persuade it to move.
[size=18]SAMMY!!!!![/size] Come hither.... :D
The Gnome's favourite tool. Slap on of course though. ;D ;D
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Silly question but you have unscrewed the reservoir lid? Years back I spent an eon trying to compress a piston on a MK1 granny, I hadn't undone the lid and the fluid was under pressure against the air in the top of the reservoir. Unscrew lid and it pushed in by hand ::)
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Cheers for all the replies :y
A few mis-conceptions I will clear up :-
I mean't remove the caliper away from the car and put it on a work-bench. I had the caliper off and tried levering pad out but ,as h21 said, was putting too much strain on brake-pipe.
Don't want to use plus-gas as I read on here that oil-based products can rot the rubber seals.
Used a chisel to try and lever out but wouldn't move - caliper piston seems ok (not seized).
Anyway my plan of action is as follows :-
Plan A
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Buy the slide hammer affair that Andy B wrote about - thanks for that :y
If that fails
Plan B
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Hacksaw thru the brake-pipe - get the caliper on the bench and sammy the pad out.
That leaves me with the problem of the rounded brake-pipe union nuts - hopefully a nut splitter will do the job and get them off without damaging the threads; then fit new brake-pipe.
If plan B fails :-
Plan C
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Dump it at nearest garage for them to fix :'(
Anybody got an alternative to Plan C :question
Anyways thanks for all the suggestions - I'll let you know, in due-course, which plan was successfull :y
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Still recon that clever use of a screwdriver or lever between pad and disc to push the pad back against the piston would work. Movement inwards/outwards (axially) will gradually get the pad moving. Once started, leverage between the hub and pad (i.e. fore and aft or car front to back) will get it free from the caliper.
repeated applications of movement in opposite directions will get the deed done such that you should be able to exert levereage via a screwdriver or long pin punch type implement between the pad pin mounting holes and the disc itself to ensure the pad gets moved out from the caliper to enable it to be replaced.
As others have said, not had to resort to a pad puller as yet, perseverance id certainly the key.... :y
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Not sure how much space you would get or if it would work but how about remove the outboard pad, loosen the caliper bolts to half way then push the caliper back so that you create a space between the inboard pad and disk. Now hit it with a hammer! But seriously try hitting the pad back away from the piston rather than trying to remove it straight away (you would have to push against the caliper wile you hit it), you're trying to break a rust line along 2 full edges, by hitting inwards you are only trying to break a small portion of rust.
I spent 3 hours removing a drum today i'm now an expert on rust removal :)
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Not sure how much space you would get or if it would work but how about remove the outboard pad, loosen the caliper bolts to half way then push the caliper back so that you create a space between the inboard pad and disk. Now hit it with a hammer! But seriously try hitting the pad back away from the piston rather than trying to remove it straight away (you would have to push against the caliper wile you hit it), you're trying to break a rust line along 2 full edges, by hitting inwards you are only trying to break a small portion of rust.
I spent 3 hours removing a drum today i'm now an expert on rust removal :)
I tried the above but ended up removing the caliper. You need to support it though if not removing the brake pipe.
I managed it without putting stress on the pipe. My inboard rear pad had seized in, both sides due to the estate being laid up for a few weeks in winter. There's plenty of crud that builds up in there, on the edges of the pad backplate. You need the caliper out really to give it a good clean in there, once you get the pad out.
Mick :y
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When I got my first Omega the inboard pads had rusted into the rear calipers. I am not absolutely certain of the sequence of events now but when I took it for an MOT I can remember the tester endeavoring to achieve a satisfactory rear brake test.
After pressing the brake pedal HARD a few times on the roller test rig (with engine running) a cloud of rust dust enveloped the rear of the car and normal(ish) braking was restored.
I don't know how the wheelbearings coped but it certainly got the pads moving ::)
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Well I'm sure you're all dying to know which plan worked - well it was (trumpet fanfare)...............................Plan A
The slide hammer puller worked a treat but totally destroyed the pad :'(
Certainly well worth The £10 I spent on it - saved me alot of grief.
Anyways thanks for all the advice. :y
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Well done. You can get your tenner back by hiring it out
to others. :) :y
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Well done. You can get your tenner back by hiring it out
to others. :) :y
Anyone can borrow it for free if they want - won't be needing it for some time, I hope, as I have new pads all round. :y