After some poor brake performance at the track a few weeks ago, I decided to upgrade the brake pads and the fluid. Have changed pads on a previous car with no dramas and read through the articles section on changing fluid and pads, it looked easy enough so i thought I would do it myself.
Pad change was no problem and the fliud replacement seemed to go ok, except now my brakes have no pressure at all. I drove the car in my car park, it hardly stopped and there was a grinding feeling coming through the pedal when i really pushed hard, basically when the pedal was on the floor.
I bleed both nipples on each caliper, in the correct order, then did it again, it made no difference. I cant seem to work out what is wrong. Would really appreciate some advice.
can you get a high pedal when you pump it up ? will it stay high or does it sink ?
Pedal comes up, if you pump the brake it does build pressure, but disappears and isn't enough to brake the car strongly.
will the pedal hold psi or does it sink ? go back over your work and make sure the pads are correct then rebleed with a power bleeder
Thanks for your help.
I rang my independent porsche mechanic, said he'd come around after work and check it out for me.
I showed him what i did and he basically said the "one man brake bleed kit" i bought to pierce the nipple was letting in air and that i was better off using a plastic tube to cover the nipple completely. We bleed them again and problem solved. Brakes working fine.
But get this, when he finished I thanked him greatly for coming after work (this was about 8 at night) and told him to send me the invoice and he said dont worry about it, all part of the service. I couldn't convince him otherwise.
That's what i call great service.
I'll give him a plug even though there are only a few aussies on this site, if you're in Victoria, NINE PLUS are well recommended.
a happy ending...and thanks for getting back on the fix
It may be a good idea to show you're appreciation by dropping of a six-pack of something next time you're in the area.