fiestaturbo.com

[dee_RS_2ltr]

Hi guys, i bought brand new drilled and grooved discs and pads from black diamond for the rear of my fiesta as it has rs2000 set up on the back. got fitted bout week or 2 ago and now they're squealing like pigs in heat when they hot and sometimes when i brake the passenger side one locks up!! which causes a few brown trouser moments

what could be causing this???

cheers, damien

[dee_RS_2ltr]

ive just done a search on this and a couple of other people have had the same problem. ive heard 'load apportioning valves' being mentioned. mine has been lowered and the rear bench taken out because i have a rollcage in the back now. Also when i go round corners and brake this tends to lock up the passenger rear brake and the car sort of skips and bounces around the corner unless i come to a stop or take me foot off the brake. By the way im not doing stupid speeds, has happened at 30mph, could anyone help me with some info cheers?

[sailorbob]

Sounds like you got too much braking force on the back end, some cars have an inertia type rear brake compensator fitted (eg 205 GTI) which is basically a ball bearing on a spring to cut the flow of fluid off. By adjusting the angle this sits at you can alter the rear braking characteristics.

[dee_RS_2ltr]

would a normal mechanic be able to sort this or would i have to take it to a garage take deals with brakes?

[sailorbob]

A normal mechanic should be able to sort this out but adjusting a compensator for a non standard set up it pretty much a case of tweak it a bit, try it, tweak it a bit, try it etc. May be putting the car on a brake tester to see what proportion front to rear there is might work.

[heeman10]

If the car's lowered, wouldn't the load apportioning valve on the rear beam adjust for more rear bias? I don't have such a valve, but the FRSTs did, and possibly XR2is? As sailorbob says, get it on a brake tester and see what it's doing.

[dee_RS_2ltr]

ok cheers guys, i'll do that then.