I have an 84 300d. I replaced the rubber brake lines and calipers a year ago. Everything has been great until recently. In the last week or so my pads have started dragging the rotors so that it sounds like I have a bird chirping inside of every wheel. It is rather loud and is defintely annoying as hell. As soon as you touch the pedal at all, the noise goes away. It also gets worse with heat, the first mile or two when I leave home in the morning, there is no chirping, but as soon as I have used the brakes a few times, the noise starts, and with repeated braking it gets louder and louder. I have cleaned the pins and the slots in the pads to make sure that dust isnt making the pads stick against the rotor so I think I have that possibility eliminated. The fact that all the brakes appear to be involved in this noise makes me think the master cylinder is failing to completely release the pressure to the calipers but I dont know that for sure. Any ideas and thoughts would be greatly appreciated. Thanks!

GLIDEHM

When you installed the pads did you make sure they would not bind in any way? I often take a little off the sides of the pads on my grinders so they will move freely in the caliper. It is not like any mc failure I have experienced.

Are you losing any fluid? if it were leaking into the booster I can imagine such a problem, perhaps.

Even thought the calipers are "new" I suppose they could bind. I would examine the pads and insure that they are wearing evenly on all pads. If one pad in a caliper is wearing more than the other that is a sure sign the other is binding.

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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.

I just replaced a leaking master cylinder. Before, I had a lot of squealing, mostly after the brakes were hot. Now the squealing isalmost non existant, just a little squeeking.

I'm not sure why this happened. Maybe due to lower hydrolic pressure?

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