Bleeding brakes

[fordrallycar]

I was chatting to a track car builder today about my brake woes & he said that when doing a complete fluid change & you have abs distributor block fitted you should be quite vigorous when bleeding because they can trap air the abs block
Has anyone else heard this
Paul

[grcossie]

I have changed abs unit in alot of different cars, and never been a problem. These have been dry when we got them

[fordrallycar]

I have changed abs unit in alot of different cars, and never been a problem. These have been dry when we got them

Ok fella thank you

[Mark Barber]

never heard of that mate

[scotram]

I've bleed many abs systems without problems but we always use a pressure bleeding system for brakes and clutches

[fordrallycar]

Cheers lads i did not think it was that F**king brakes

[Mark Barber]

have you got problems ????

[cossiedavid]

Did we not sort it mate

[Smart Tech Tools]

Paul what is the problem with the brakes ?

[paulk]

my fiesta had to have the abs pump purged while bleeding the brakes but never heard of this on older cars

[Sunnysidebb]

Some cars that have traction control have to run the abs pump when bleeding. My 911 Turbo is an example you run the pump with the diagnostic computer, However I have never had any issues with any Cosworth brake bleeding.

[fordrallycar]

The problem seems to be i get a good pedal then then it will go soft & i can lock the rears.The brakes worked fine at silverstone then small pipe split from the brake res this was replaced & new fluid put in
this is when the problem started
I had them re bled & air was in the system but the problem is still there so it can only be 4 things
1 Still air in the system
2 The pipe that was replaced
3 The front calipers are not working properly
4 Could the pads be glazed over

[Mark Barber]

I would say air getting in the system and probably from the pipe you have replaced
mark

[Sunnysidebb]

Did you use a pressure bleed kit.....Gunsons do one available at Halfrauds iirc ( ive had mine a long time) cheep and very effective.
I would be tempted to bleed the system again but spend longer doing it, make sure you get loads of fluid bled through the system. If its 4 pots you have on spend time making sure both sides of the calliper are completely free of any traces of air.

[Cochyn]

I would say air getting in the system and probably from the pipe you have replaced
mark

Second that, I doubt there's a problem with the brakes themselves since they were perfect before replacing the pipe. It takes time sometimes to completely rid the system of air, so get cracking and have plenty of fluid on hand to top up the the reservoir.