I have bleeded my brakes a couple of times now, and they work great a while, and then i feel that the pedeal is going more and more down to the floor, and when i bleed them again i got air again, and only at the front brakes(disc). How can the air get in to the system? I have no fluid leaks.

Thanks

------------------
Camaro RS 68
<A HREF="http://www.hyperwerks.se/rally-sport" TARGET=_blank>rally-sport</A>

I had the same problem. In my case it was a worn out seal in the master cylinder that let the air into the system. I swapped in a new one and i got a stone hard pedal. I think this happend when bleeding an old master cylinder and pumping the pedal all the way down, then the rust area of the cylinder (that in mormal use is never touching the rubber seal) will damage the old rubber seal, and there the air will go in...
Good luck!!

------------------
67 std/dlx (http://www.camaros.net/cgi-bin/xchange/xchange.cgi?search_and_display_db_button=on&db_id=411&exact_match=on&photo_size=full) coupe L-30/M-20, bolero red/parchment, project

When i press the pedal i can hear a little Pssst sound from the mastercylinder, so i guess youre right about that.

Is it worth to repair it or is it better to buy a new one?

Thanks

i would go with the new one, its worth the money and effort... rebuilding one might be more trouble.
again, good luck!!

------------------
67 std/dlx (http://www.camaros.net/cgi-bin/xchange/xchange.cgi?search_and_display_db_button=on&db_id=411&exact_match=on&photo_size=full) coupe L-30/M-20, bolero red/parchment, project

Thanks http://www.camaros.net/forum/smile.gif