Brake issues GC8.....Heeeeeeeelp.....
 

Lads I,am banging my head against a brick wall.....:confused::confused::confused:...
I have bled them once, twice, three times a whole litre has gone through the ressy and they are still taking one and a half pumps to lock the brakes on hard....it,s been a slow progressive fault I have had and it,s starting to P me off.......Heeeeeeeeeeelp.

Cheers

Nails

did you bleed the ABS unit?

What you mean lock them on hard??

brembos?
what order are you bleeding the wheels?
are you doing it solo?

[QUOTE=tuna;481336]brembos?
what order are you bleeding the wheels?
are you doing it solo?[/QUOTE]

Narr Tuna... stock

what order are you bleeding the wheels?
are you doing it solo?

[QUOTE=Mister Two;481333]did you bleed the ABS unit?[/QUOTE]


Cheers Mister Two
Did,nt think I needed too mate as the system has,nt been open to atmosphere,
on the last pad change I just pushed the pistons back, fitted new pads and re-assembled.

[QUOTE=tuna;481340]what order are you bleeding the wheels?
are you doing it solo?[/QUOTE]

Tried them front back, back front, left right, right left, passenger driver and driver passenger.........:confused::confused::confused:

[QUOTE=redlib;481335]What you mean lock them on hard??[/QUOTE]

To be very firm under foot.

are you doing it solo?

[QUOTE=tuna;481346]are you doing it solo?[/QUOTE]

Had the misuss doing the pedal thing and she was telling me that she was pushing all the way down to the floor..

[QUOTE=Nails;481344]To be very firm under foot.[/QUOTE]

what as in pump the pedal up after you bleed them? Always thought that was normal. does the pedal sink to the floor slowly wen you apply some pressure to it?

[QUOTE=Nails;481349]Had the misuss doing the pedal thing and she was telling me that she was pushing all the way down to the floor..[/QUOTE]

theres your problem?? you probably buggered the seal in the master cylinder. should only do half pumps when bleeding

I had the same problem with my GC8, even after a mechanic did them it needed doing again though mine were changed over so dry.
You haven't got a ratty hose that's expanding under pressure have you?

try this, after a quick search i'd review this thread for your bleeding order: [url]http://www.perth-wrx.com/vb/showthread.php?t=10887[/url]

[QUOTE=redlib;481350]what as in pump the pedal up after you bleed them? Always thought that was normal. does the pedal sink to the floor slowly wen you apply some pressure to it?[/QUOTE]

When driving and the brakes are applied, it feels a little soft under foot until you lift off slightly and re-apply the pedal for a much firmer feel, if that makes sense.

Sounds like air bubbles to me
bleed as per instructions in link on Tuna`s post above

[QUOTE=Rexy03;481381]Sounds like air bubbles to me
bleed as per instructions in link on Tuna`s post above[/QUOTE]

Cheers lads, I,ll give it another bash.

[QUOTE=redlib;481351]theres your problem?? you probably buggered the seal in the master cylinder. should only do half pumps when bleeding[/QUOTE]


Eh ?

I think he means that you should have full pedal pressure at about half pedal travel, then open the bleed nipple and the pedal should travel to the floor, hold the pedal there and close the bleed nipple.

If the pedal is going to the floor straight up, its leaking somewhere, and perhaps in the master cylinder and its seal.

I am also having issues with my brakes similar to the OP. Anyone recommend a place close to Wanneroo that has a vacuum pump to bleed the ABS?
Had this issue since doing my conversion nearly 3 years ago, and thinking it will be an airlock in the ABS as that was installed at same time.

Dunno if the ABS affects this, but on my bikes I leave the bleeders open and just pump fluid through into a clean container. That seems to get them to a point where I can start to actually bleed the air out after about 250mls have passed through. On a car it might take a whole lot more.