Sierra rear drum brake cylinders

[K4KEV]

I am in the process of refurbing my sierra rear drums before fitting to uprights....lots of rust,dust and siezed bits so I decided to check out the price of a couple of brake slave cylinders.......for the price of a couple of pints I could have a new set delivered to my door....and yes you guessed it ....from ebay
£4.40 delivered for both cylinders, so no heating/cooling,WD40, mole grips, brake spanners,cussing.......just a couple of new bolts, it was a complete no brainer, some things are just not worth the hassle for the sake of saving a few quid here and there.
here is another cheapish set at just over £7
http://www.ebay.co.uk/itm/2905508147...#ht_666wt_1085

[Wynand]

I also chuck the old ones away in lieu of new ones...

Im in a fortunate position to buy spares directly from the importers for my business and paid ZAR32 (2.60 pounds) each and going to the spares retail outlets a rebuild kit cost more than that per unit! If the sleeve is pitted or worn, one is pissing against the wind trying reconditioning it.

[brainbug007]

Wasn't there something around not using sierra cyclinders though in favor of slightly larger ones(21/22mm rings a bell) off something like an escort to get the brake bias right?

[davedew]

If you are using the original sierra setup like Gus & Adrian did, then you have to go from a sierra wheel cylinder to a smaller escort one.

Attached is a link to the page on Adrian's website which explains it all.

http://www.tamarisktechnicals.com/pages/iva.html

I think this only happens when using the larger rear drum setup from the 1.8 & 2 ltr cars.
I believe the 1.6 sierra had smaller rear drums and therefore smaller wheel cylinders.

HTH

[K4KEV]

Thanks for pointing that out Dave....thankfully it is the 1.6 one I am using so should be ok.....phew

[ayjay]

You can always fit the pressure balancing gizmo if like me you have the 1.8cvh.
I'm waiting til it has an MOT before deciding on this option

[K4KEV]

Hi AJ apparently you are not allowed to use the brake proportionating valve for the IVA, which I find rather odd since it was part of the original vehicle.

[ayjay]

DOOOH!

[mark]

Mine and a couple of others passed iva fine with the larger drums

All my brakes were totally new and well beddded in