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Author: Subject: Identify disc and pad requirements
the_big_1

posted on 24/9/19 at 06:20 PM Reply With Quote
Identify disc and pad requirements

Hi guys,

I have sierra front and rear hubs and disc setup on my build.
I dont have any disc or pads from the other car etc. How can I identify what is needed or what sierra they came off?

Cheers all!

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mcerd1

posted on 24/9/19 at 06:56 PM Reply With Quote
there are only a few kinds for the sierra's

to try and make it easy have you got any pics / are their any large numbers cast into the calipers ?





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the_big_1

posted on 24/9/19 at 07:02 PM Reply With Quote
Hi ya,

I was hoping that was the case.

One front looks like P30
Other front looks like 29P

Rear looks like 0659/4

If that's no help, I could put pics up?







[Edited on 24/9/19 by the_big_1]

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ReMan

posted on 24/9/19 at 09:37 PM Reply With Quote
This may help a bit
https://www.locostbuilders.co.uk/viewthread.php?tid=205361&page=2

And this
https://www.autodoc.co.uk/car-parts/brake-calipers-10907/ford/sierra/sierra-estate-bnc





www.plusnine.co.uk
∙،. ˘≈ﺣ

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mcerd1

posted on 24/9/19 at 10:24 PM Reply With Quote
the gap in the carrier bracket is defiantly the wider one for a vented disc - so that only really gives you 2 options (excluding 4x4 or cossie's)


they can be either 260mm vented discs as found in the XR4, V6 or any 2wd one with ABS - these use calipers with ~60mm pistons
or 240mm vented discs - as found in all other normal sierra's (normally with drums on the rear) - these use calipers with ~54mm pistons


the numbers one the front calipers don't match mine (all mine are 260mm disc type) so there is a good chance that it the 240mm kind - but its easy to check the piston size and if you want to double check just cut out a 240 or 260mm cardboard disc offer it up



--------

the rears are just as easy - there is only 1 type of pad
there are only 2 types of caliper - for vented or solid discs - but vented ones are only on cossie 4x4's and granada 24v cossie's

on normal sierra's there is only one kind of rear disc 253mm solid

2wd cossie's use 273mm vented ones - the caliper is identical to the std sierra, but the lugs on the bearing carrier are longer (this setup also uses bigger CV joints and the 7.5" LSD diff)

4x4/Granada cossies use a 273mm vented disc again with longer lugs on the bearing carrier and the wider vented calipers


I have pics with sizes of the lugs for comparison that I can dig up if needed - but it shouldn't be hard to measure the space you've got to check which disc you need

[Edited on 24/9/2019 by mcerd1]

[Edited on 24/9/2019 by mcerd1]





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the_big_1

posted on 25/9/19 at 05:07 PM Reply With Quote
Hi guys,

Front disc looks like a 240mm, 260mm is to big and piston measures 54mm so any discs for a standard sierra will do, not cossy or 4x4 etc?

Great looks like a 253mm will fit, 273 way to big. So again, looks like a Standard sierra too? So all I need is standard discs and pads for a standard sierra?


Cheers,

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mcerd1

posted on 25/9/19 at 10:02 PM Reply With Quote
sound right

try looking for front brakes for an 1.8 OHC or 1.8 CVH without ABS - that should get you the right size


for the rear just look for the XR4x4 brakes - they are the same 253mm solid type, but they were the only kind ever fitted to the XR4x4's so it'll make it easier when looking through the catalogues...





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atomic

posted on 20/10/19 at 12:11 PM Reply With Quote
This is a good resource as they publish their tech docs.
https://www.bremboparts.com/europe/en

[Edited on 20/10/19 by atomic]

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