Crabby brakes!

[ZoomZoomZoom]

Here was my setup:
New brembo blanks, porterfield pads, ss brake lines, POS brake master cylinder

POS brake master cylinder starts failing after about 2500 miles. Car starts pulling to the right during hard brakes. I notice twice the brake dust covering the PS wheel than the DS wheel. I replaced the POS brake master cylinder with an OEM brake master cylinder ($$!). Car still pulls hard to the right during braking. I've had sticky calipers on all my supras, but this doesn't appear to be a sticky caliper. The wheel doesn't get hot, the car drives straight, and the car always rolls freely. So, I'm thinking either the PS caliper is not retracting fully, or the DS caliper is being lazy, or there is something in the lines possibly from the failing POS brake master cylinder causing the uneven performance. Question is, where do I start troubleshooting at? Or just forget it and get two reman calipers..?

 

[IRACEMYCOPCAR]

id like to find out the answer also, if you figure it out let me know as my car has the same exact symptoms as yours.

 

[Poodles]

Calipers or ABS block as the master cylinder only has two lines, one for front, and one for rear.

I had the same symptoms and it was the slides...

 

[RiyadYar]

one caliper is not working properly possibly stuck open

 

[ValgeKotkas]

Mine pulls to the left while braking. My lower control arm bushings are dead.

 

[Guyana00]

I had the same symptoms and it was the slides...

I would have suggested to look at these as well. Could be an easy and cheap fix. I find they are neglected by too many people on all kinds of cars, not just the supras.

 

[toy fanatic78]

Proportioning valve maybe?Just a thought.

 

[adampecush]

prop valve adjusts front/rear bias, not left/right

 

[ZoomZoomZoom]

Calipers or ABS block as the master cylinder only has two lines, one for front, and one for rear.

I had the same symptoms and it was the slides...

Quit being a tease and give me some details here, Poodles! You know I'm clueless! I plan to tear this car apart next weekend and I'm sure it will involve removing both front tires and hitting something with a hammer.

DETAILS, please.

 

[Poodles]

The calipers float on two slides, one each at the top and bottom of the caliper. The top one is a blind hole and the slide is attached to the bracket, the lower one flaots in the caliper and the mounting bolt goes through it.

People service the brakes, fuck up the boots, water gets in, and it's seizes. One of my rears was so bad I had to put the bracket in the vise and twise the caliper back and forth to loosen it up and produce enough heat to get to to finally come out. Used tons of PB Blaster and cleaned the blind hole out really well and polished the shaft (giggidy), greased everything well and reassembled.

 

[tissimo]

+1 your calipers are to blame

 

[ZoomZoomZoom]

The calipers float on two slides, one each at the top and bottom of the caliper. The top one is a blind hole and the slide is attached to the bracket, the lower one flaots in the caliper and the mounting bolt goes through it.

People service the brakes, fuck up the boots, water gets in, and it's seizes. One of my rears was so bad I had to put the bracket in the vise and twise the caliper back and forth to loosen it up and produce enough heat to get to to finally come out. Used tons of PB Blaster and cleaned the blind hole out really well and polished the shaft (giggidy), greased everything well and reassembled.

Thanks for the details, Poo! :naughty:

(is it ok to call you Poo like IJ does?)

 

[Poodles]

np

 

[IJ.]

If for any reason you unbolt the Slider Pins make sure you use a drop of loctite when you reinstall them

Some muppet in my car's past didn't and I had a pin unscrew letting the caliper gouge the inside of the wheel.....

 

[Poodles]

I tried removing the top pin off the bracket...won't budge at all on mine.