Breaks Question
Thread Starter
Drifting
Joined: Aug 2002
Posts: 1,317
Likes: 0
From: Lancaster CA
Breaks Question
The other night I got on the breaks very hard, into the anti-locks, at high speed due to a stalled car in a dark runout at the track.
Afterwards I nursed it home using the 6spd to slow down with very minimal breaking to just bing it to a full stop when neccessary. I thought perhaps I blew a hose to a slave cylinder or the fitting came loose due to the pumping action of the ABS.
I can't find any fluid under the car and, with it running, if I hold the break down hard, it doesn't creep towards the floor like a leaky wheel cylinder.
It feels more like the piston in the master cylinder is not returning when you let off the break? Is that possible? The peddle feels very light for about 3/4 of its travel then it presents a more normal feel.
Ideas??
Thanks,
Steve, WCCC - CC2
[Modified by scool93535, 5:05 PM 1/30/2004]
Afterwards I nursed it home using the 6spd to slow down with very minimal breaking to just bing it to a full stop when neccessary. I thought perhaps I blew a hose to a slave cylinder or the fitting came loose due to the pumping action of the ABS.
I can't find any fluid under the car and, with it running, if I hold the break down hard, it doesn't creep towards the floor like a leaky wheel cylinder.
It feels more like the piston in the master cylinder is not returning when you let off the break? Is that possible? The peddle feels very light for about 3/4 of its travel then it presents a more normal feel.
Ideas??
Thanks,
Steve, WCCC - CC2
[Modified by scool93535, 5:05 PM 1/30/2004]
Le Mans Master
Joined: Oct 2000
Posts: 6,454
Likes: 700
From: Sausalito CA
Re: Breaks Question (scool93535)
One hard stop and you have a brake issue?
Well, look for oil at the calipers. Check the fluid level in the master cylinder reservior.
Could be air if all checks out so go for a bleed.
Perhaps some abs stopping test could be safely done.
Seems strange as these cars can abs stop all day long.
Well, look for oil at the calipers. Check the fluid level in the master cylinder reservior.
Could be air if all checks out so go for a bleed.
Perhaps some abs stopping test could be safely done.
Seems strange as these cars can abs stop all day long.
Le Mans Master
Joined: Dec 2000
Posts: 9,891
Likes: 1,829
From: Hot Springs AR
Re: Breaks Question (scool93535)
It could also be a stick caliper that is now cocked slightly. That can allow the piston in that caliper to be pushed back by the rotor, and you've got to push it back to the rotor disk before you can start braking.
Easiest thing to do is pull the calipers and clean/grease the slide pins. Then I'd bleed the brakes and see where you are then.
HTH, and have a good one,
Mike
Easiest thing to do is pull the calipers and clean/grease the slide pins. Then I'd bleed the brakes and see where you are then.
HTH, and have a good one,
Mike
Thread Starter
Drifting
Joined: Aug 2002
Posts: 1,317
Likes: 0
From: Lancaster CA
Re: Breaks Question (Kenny94945)
One hard stop and you have a brake issue?
Could be air if all checks out so go for a bleed.
Perhaps some abs stopping test could be safely done.
Seems strange as these cars can abs stop all day long.
Could be air if all checks out so go for a bleed.
Perhaps some abs stopping test could be safely done.
Seems strange as these cars can abs stop all day long.
The fluid level in the master seems to be a little lower, maybe an 1/8 of an inch. I like the bleading idea, I'll check it out.
Thanks for the ideas.
:cheers:
