changed brake fluid today and rear brakes doing nothing

[andybutlers]

hi i have changed all my brake fluid today and put castrol super response in. Whilst the car was in the air i decided to hold the brake pedal down and try and turn the rear wheels the wheels spun freely except when i pushed the compensator valve up by hand. (no spring fitted) i have heard they dont have these fitted as its a cup but the brakes do literally nothing at all and the brakes are completely useless. can i fit the valve off a normall 172? cheers

 

[Fred@BTM]

they're not supposed to do much, renault made them that way deliberatly (insert joke here)

 

[c__w]

If it was in the air with the wheels drooping then a loading sensitive compensator would mean the rears wouldn't have much braking effort like you've found?

Assume a load on it by put it back on the ground or activating the compensator and it has then added effort.

 

[Fred@BTM]

^how does that work on a cup then???

 

[andybutlers]

even on the drive home i drove really hard on the brakes. The rear discs were freezing cold and rusty but the fronts were really hot

 

[Fred@BTM]

^standard

 

[Scrooge]

renault are dogshit lol

 

[andybutlers]

can i fit a compensator off a 172?? or i may as well take the rear discs and calipers off to save the weight for the track lol

 

[bmh.01]

There isn't a compensator on a 172, it uses EBD instead.

 

[andybutlers]

can i do anything to get them working?

 

[Fred@BTM]

fit a proper bias valve

but as a wise man once said, "why f**k with perfection?"

 

[andybutlers]

how easy a job is that bud,trust me if it was anywhere near perfect i would leave it but honestly the car has shocking brakes to the point where it just wont stop at junctions

 

[Fred@BTM]

that's nowt to do with the rears then

you'll need new brake lines, incar adjustable bias valve etc etc etc, easy if you're handy