Errrrm caliper adjuster???

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johnd
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Errrrm caliper adjuster???

Post by johnd » Thu Jan 06, 2005 1:19 pm

Went to undo the 5mm allen head thing and what apeared to be oil started to pour out so tightened it again. Any ideas? Might just be water I suppose?????

Cheers

John
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Murf
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Post by Murf » Thu Jan 06, 2005 1:32 pm

:shock:
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rpruen
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Post by rpruen » Thu Jan 06, 2005 2:17 pm

Unfortunatly it's likely to be brake fluid.

Not a particularly good sign.

I'd say it's a good idea to invesigate further.

Richard
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chris1roll
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Post by chris1roll » Thu Jan 06, 2005 3:47 pm

Seals in the Caliper is knackered.
It was brake fluid coming out.
Seems to be a relatively common problem, I've seen it a few times.
Looks like you'll be having to replace the caliper, unless you can get it reconditioned, but that would leave you without a car.
Had: 1989 ES with added boost, and terminal windscreen cancer :(
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johnd
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Post by johnd » Thu Jan 06, 2005 4:31 pm

:shock: ....hmmm not good! Brakes are working fine though with no visible leaks. Could it just be a leak around the adjuster itself?

I am trying to undo the right allen head bolt aren't I? I notice that there is a 7mm bolt in a rubber sleeve, under a rubber bung aswell. Whats that one for?

Now where was that thread again on fitting 240 four-pots????

Cheers

John
Citroen 2CV, lowered on 12" Wooden wheels, performance 1cm exhaust, stabilisers & chemical toilet in drivers seat

94 480 Turbo - now the missus's car!

Judas's car!! - 292BHP Celica GT4....I couldn't help myself!!

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Post by chris1roll » Thu Jan 06, 2005 5:04 pm

Thats the right one you are doing.
The ones in the rubber sleeve are for removing the caliper from the car.

The brakes will work as they are, but if the seal around there has gone, its likely the others won't last much longer, if it was me i woud change it right away, don't take chances where the brakes are concerned.
Had: 1989 ES with added boost, and terminal windscreen cancer :(
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Post by mogge » Fri Jan 07, 2005 5:25 am

Hi!

If there is a leak by the adjuster thats no problem, it is the sealing round the adjuster thats broken (o-ring in swedish) If the allen head sealing holds thight it´s no problem!

/Jonas
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Post by bbf » Fri Jan 07, 2005 9:26 am

i'd say so, but you'll also have to to flood the earea betwen adjuster and alen head sealing so there's no air in it.
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Murf
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Post by Murf » Fri Jan 07, 2005 10:13 am

o-ring in swedish
let me translate it for you:

o-rIng :lol:
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Post by mogge » Fri Jan 07, 2005 10:14 am

Hi!

I´d say you dont. Probably the sealing isn´t totally wasted so fluid will slowly run to the adjustment space. But i dont think it will impact on the brake handling.

/Jonas
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rpruen
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Post by rpruen » Fri Jan 07, 2005 12:52 pm

This is a part of the brakes, don't take the chance that it may be ok. Change it, because if it does fail you may end up hurting yourself or someone else.

I also agree with whoever said the air in the adjuster part may get into the braking system. If you can squeze fluid in, then the air can also go the other way, it's got no where else to go (unless something else is leaking as well).

Richard
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Post by mogge » Fri Jan 07, 2005 4:39 pm

Hi!

Well well, you have a point there!

But the price of the calipper and the gain is not worth it, air will not return to inside the calipper, air will stay att the highest level.

It is possible to change the oring, see www.480center.com /topics / chassie /renovera bromsar (page down at moment)

/Jonas

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John mate!!!!!!!

Post by catgroom » Fri Jan 07, 2005 5:29 pm

oh and John,I posted about the 240 4-pots a few months back.DBS from memory informed me that due to measurements/fabricating involved it was far from viable mate!

I was pissed off too!!!!!!

and yeah the calipers?Change it big boy!!!!!!!! :D
I'm No Longer Here :(

http://www.volvo-480-europe.org/forum/viewtopic.php?f=19&t=34359&start=20

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Post by Murf » Fri Jan 07, 2005 6:01 pm

this is probably going to sound stupid but ages ago i read about a guy with a mk2 granada who wasnt impressed with his brakes (obviously, it being an old Ford!)
he rigged up a PAS pump as some sort of mega brake booster (instead of the servo) apparently the effects were amazing and still retained all the brakes feel.

anyone know about this sorta stuff and want to comment whether this would be viable?? :D
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Post by mogge » Fri Jan 07, 2005 6:44 pm

Hi

Here the right link http://www.480center.com/servlet/user?a ... cle&id=317

Sorry, it´s in swedish.

Murf, your right, foor an example AUDI used the powersteering as booster for the brakes. (you get even pressure, and higer) so you inly need the valve to install it.

Catgroom, i agree, real racecars have solid brakecalippers, they dont bend when brakeing as the standard flooting one does (but these are simplier and cheeper)

/Jonas
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washers

Post by felyx » Mon Jan 17, 2005 3:22 pm

i'm sure if the 7mm allun key caps have bronze wahsers on them then it is designed to keep fluid in behind just like the oil sump washer etc.
cheers felyx
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Post by chris1roll » Mon Jan 17, 2005 6:40 pm

I think its more likely to be to keep water and shit out.... One car we found had plastic bolts instead, probably because the allen bolts seize in.
Had: 1989 ES with added boost, and terminal windscreen cancer :(
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Post by MrE » Fri Feb 25, 2005 11:29 am

Chris, if you remember my car had yellow plastic screw in caps that looked factory fitted. I assumed they changed the design as the caps own seize in. I had brake fluid leak from the adjuster on one of my rear calipers, annoying as i'd only just painted them, found a spare caliper, quick swap and bleed...job done and peace of mind.
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Post by chris1roll » Fri Feb 25, 2005 5:07 pm

still does on one side.

Conclusion, it isn't designed to be a fluid seal!
Had: 1989 ES with added boost, and terminal windscreen cancer :(
[img]http://img.photobucket.com/albums/v477/chris1roll/forsignature.jpg[/img][img]http://img.photobucket.com/albums/v477/chris1roll/Polished.jpg[/img]
The voices in my head might not be real, but they have some pretty good ideas..

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Post by MatBat » Fri Feb 25, 2005 6:46 pm

heh my turbo just failed her MOt on one thing.

-----fluid leaking from adjuster.------

Have now replaced the caliper so will ge a fresh MOT tomorrow :D

Then need to wait until Monday to get tax :(
1996 Mini Classic 1275.

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