XA coupe, discs all round.
They don't work. Why the hell not?. They feel spongey, like they need to be bled. But I've bled them to death, changed the master cylinder for a new one, calipers are all freshly rebuilt, booster is working just fine.
The diff is a 9inch running XC rear calipers.
The master cylinder is the standard one for discs-drum setup (Covs and Repco both say that 4 wheel disc master cylinders are no different.)
I am not running a proportioning valve, or a residual line pressure valve in the arse end. As far I know the XC cobras didn't use an external proportioning valve (maybe it's built in the master cylinder), so neither am I - I'm jus attempting to replicate a system that works.
I haven't pulled the master cylinder apart, but it's like the rod isn't forward enough in the cylinder, if you know what I mean. I don't know a whole lot about brakes or the intricacies of how a master cylinder works and I cannot figure this out for the life of me.
The only thing is the handbrake isn't setup properly, but will be by friday. This should improve them but I doubt it'll fix 'em properly (the pads are still right on the discs, there's no gap, like the calipers aren't open execessively.)
I think I need to mess around with valves of some sort.
Anyone put 4 wheel discs on their falcon and had it work sweet?
XA GT Coupe
LC GTR Torana