"SPONGEY BRAKES" ???? !!!!!
 

Hi ALL

Any advice here ! Have tried all sorts and my Brakes are still so Spongey with no real feel to them like i believe there should be !

Classic MY 98,4 pot calipers fitted (not the original 2 pots),Goodridge hoses,Discs+pads ok,BLED many times in correct order,fresh Brake fluid used ! no visible leaks anywhere.

Any further suggestions other than a Big Brake conversion upgrade.

Cheers
Duracell :cool:

did you fit the calipers with the bleed nipple at the top ?

Yes Bleed nipple at top...why is that wrong ?

no thats where it should be , you can fit them on with the nipple at the bottom which means you wont get a good pedal , could be the master cylinder worn

In addition to bleeding your brakes, have you also flushed new fluid right through the system..? If not then air might still be trapped. Pushing through 1 litre would be good, admiring the fresh colour as it comes out. Use more if necessary -- it's fairly cheap stuff.

Just to double-check, I take it the bleed nipples are being closed before the pedal is being lifted up (which would suck air in)..?

Jonts.

next job is to get a bracing bracket for the brake servo...

I assume you have replaced the pads?
Check how they are handling the heat, as the pad material can sometimes debond from the metal backing slightly, causing your foot to squish the pad material to the backing before any meaningful braking occurs.

Daz

Thanks for replies and advice.

Done all these things as suggested checked and re-checked.Discs are Tarox drilled/grooved as were Pads but have now put in some new EBC Red Ceramic pads purchased a while ago.Feels slightly better as obviously new pads but am going to look at fitting the Brake servo bracket.Failing that new Master Cylinder ?

THANKS
:cool:

From what you are saying I doubt the servo bracket will answer your problems though, the bulkhead movement is only about 5mm under very heavy forces (i.e stamping on the pedal without the vacuum assitance), But it will help slightly.

Have you checked your wheel bearings ?

If there's play in the bearings, then as you drive along the free play will allow very slight movement in the discs, pushing the pads out a small bit. The first time you poress the pedal, you'll use quite a bit of pedal just moving the pads back in touch with the discs and centering the discs again.

It's quite an easy test to perform - you simply press the pedal twice when braking in a straight line. If the pedal is a lot firmer on the 2nd press, then check the bearings/hub for wear and replace if necessary.

It's not unheard of for a bearing to have free play and be worn, without it making a huge amount of noise.

John