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Old 02-27-2007, 10:57 AM
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Brakes sticking

I have a '40 chevy with mustang II front disc brakes, a 10 bolt gm rear with drums, and a under the floor brake pedal with power brake booster, and a remote reservoir (still mounted under the floor). The brake pedal has residual valves.

I drove the car two weekends ago for about 30 miles...got it up to around 70 with no problems except when I'd stop I would have to pull my brake pedal up about two inches to take the brakes all the way off. I think I need a spring on it.....the brake pedal has a lot of adjustment features maybe it's something I need to adjust out.

I drove the car last weekend and it would top out around 50mph and seemed like the brakes were on....after about 15 miles the car would do 35mph. At this time the pedal was getting a lot harder to push as well. I stopped and the right rear drum was boiling out smoke. I let the car cool off for a couple of hours. I figured the ebrake was on (just the cable ran, no handle yet) so I pulled the cable (about 1/4" movement) and took the car for a drive.....car braked fine. The pedal felt like it was back to normal (brake was hard to push when hot). I got home after about a 15 mile drive and I put the car in neutral and tried to push it...It went about 5 feet back then it wouldn't move.

I jacked up the back of the car and the wheels turn freely. I took of the drivers brake drum, and the pads are glazed over and pretty worn now. Everything was new as of a month ago.

Could my pedal just need adjustments? bad master cylinder? e brake stuck?

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Last edited by RodFather; 02-27-2007 at 11:03 AM.
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Old 02-27-2007, 12:13 PM
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You definatley need a return spring on that pedal. It needs to move freely throughout it's travel, without binding or touching anything. When the pushrod is in the master you should have just enough freeplay to feel it. I set mine up to about .030" max

Now you probably need new brake shoes and pads.
If they are heated until the point they are cracked and glazed, then they are done.

Check your drums and rotors for blue spots, heat checks, (looks like galling ) and out of roundness.

Driving the car until it wouldn't go over 35 MPH is a sign that you heated up those brakes so bad that you may have done some damage. Check your front wheel bearings and cjhange all of your brake fluid also. It probably boiled.

You need to do some serious checking before you put your car back on the road. Maybe get someone with more automotive experience to check out your car while it is apart so you don't miss anything..

Hope this helps,
Mikey
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