Hi All,

Ive been playing about with the rear brakes on my IRS fury, trying to swap from drums to disks. I was given some very nice front disks for free (240mm) that had been lightened and that i was initially going to try and use them (pic below). I am using the Rally design adapters btw.



The problem is that its about 15mm off alignment with the centre of the disk...



Now, i have also have a couple of these from a Mk3 Escort (again 240mm), which i know need the hub to be turned down, which i can do on the lathe without much trouble. Weigh a lot more than the other disks though, so hoping not to use.



My current thinking is maybe get another hub spacer (gold bit in the photo below) and fit that between there adapter plate and the bearing carrier. This should then get the calliper inline with the centre of the disk and not need the hub turning down and using the heavier disks.



What do people think of this approach ? Any idea where i can get another couple of 15mm hub spacers from ?

Cheers
Tris

[Edited on 22/12/11 by Tris]

I thought the rear discs sat on the outside of the hub and were held on by the wheel and calliper, rather than how you have them.

Yes, thats how i have them at the moment. In the top picture i have the hub, then the disk, followed by a wheel spacer and then a couple of nuts. Disk always mates to the hub.

you could always make some differnt mounting brakets for the caliper

spacers for the ones you've got might work - but I doubt you can buy anything that'll fit


[Edited on 22/12/2011 by mcerd1]

The deep dish disc variety (Fiesta et. al.) is what you'll find on most uprights that I've seen.

Difficult to see the 'thing' in appreciation without having it my hands, but if it helps.... the lugs on the Sierra caliper are abbreviated when you use them on Sylva Riot uprights. Would that solve the problem here?

Before you get spacer made you might want to check whether the wheels will fit over the disk/calliper in the position that you have shown.

I battled for ages with this on mine (Phoenix, 13inch Revolutions).

There are also some other disks that you can use which are not as heavy as the Mk3 Escort but and have less dish and a slightly smaller diameter, which might be a further option. Finally, I did take a look at the brake parts catalogue when I was doing all this and found the Peugeot disks to be thinner (same wheel bolt spacing), but I didn't get any further than that as I was finally seeing light at the end of the tunnel.

brakesint website is quite useful

Tris,

May I ask another question? Why are you bothering? I'm not convinced that you'll save any weight. Unless you really don't like sorting-out shoes and springs from time-to-time, I don't see the benefit.

You may have guessed that I'm sticking with drums.

TC

Hi Tim,

Well its a bit of a few factors.. 1. i hate drums and those blasted springs, 2. i had the disks for free and fancied using them and finally the drums on the car which i brought looked well past their best and were slightly leaking.

I need to have a better look at them but i think i may end up getting a big block of ally and giving the milling machine a fair old workout.

Matt - yes thanks for that, going to tape the calliper onto the disk and see if i get any clearance problems (13" CXR's)

Cheers
Tris

As Tim says, why bother?

A good drum set up properly is a very efficiant brake


also just beacuse it was free, trying to bodge something up, might not be the best way forward (or to stop)

Steve

Its true - I won't be swayed - the drums are self modulating to a degree and come with an A1 handbrake to keep scrutes happy - plus, I am sure that it'll be lighter than a Sierra disc set-up.

But, hey - fit lead seats if you like - anything to slow you down.