Master
I swaped my solid disks on the RRC today to ventilated ones, had to change the calipers too and new pads. The calipers are old, the pads and rotors new. Bled it all out, had a drive expecting it to be much more grabby, but its fairly soft. Very easy upgrade and cheap too.
Does anyone know if new pads and rotors can be soggy? or perhaps they need to bed in a bit. What I didnt do was bleed all the brakes from the rear to the front again.
Bleed your brakes properly ... Did you use the "1 man bleed bottle" method? ...Originally Posted by F4Phantom
If there bled properly and it's still spongy .... then check the "proportioning valve" is not buggered ... (valve does the 60/40 split to your brakes) ...
Cheers
Mike
Master
no I have never used that, I do the "dad sits in drivers seat and depresses the brake while I get brake fluid in my eyes" method. I start at the rear near side and then far side then the front the same, but today I just skipped the rear and bled the front only.
ForumSage
See... Fathers *can* be useful at times !
Very old school .... But a great "father & son bonding" thing to do
Less painful using this .....
Repco have them for about $15
Cheers
Mike
Wizard
Cant see by your post if you have ABS brakes, if so you need to follow the long winded ABS bleed procedure.
Master
no I dont have ABS and I should report that the brakes were what I could describe as slippery, and after a few days of driving are now working well. In fact its the most amazing upgrade, the car has so much stopping power.
YarnMaster
If your using AP Racing 4 spot calipers as used on the later ABS equipped RRC's, these actually have two supply inputs meaning you need two lines in, one is for the hydraulic pump powered circuit, the other is for the static circuit.
Both bleed nipples need to be done in a particular order to make sure they're bled properly which may be why it's spongy, the other is that going from 2 spot to 4 spot calipers in some cases needs a bigger master cylinder to cover the extra volume of 2 more pistons and account for the surface area of the pistons to create the braking force on them.
Bleed format is generally the two lower ones first and then the two top screws.
Cheers
Andrew
Sent from my backyard TeePee using smoke signals.
Master
thanks for that, there are two lines, but the old calipers also had two lines so no change. But it has three bleed nipples, I bled all three and that worked. I cant remember if I did it in order, but the brakes are firm now, I think the pads need bedding.
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