I'm sure that with enough money and hours my mechanics could figure out the cause, but maybe someone here has a clue. Here's the situation: my 1962 Hawk's brakes -apparently the fronts - are grabbing and not releasing all the time. It used to be a bit of a pain, but now the car shudders at highway speed and sometimes slower. The brakes were readjusted yesterday because the fronts were found to be too tight. Now it's worse and sometimes when warm the shuddering is almost violent when slowing down from 55 mph. ALL the brake hoses have been replaced. The fronts were done in 2006, which is probably less than 200 miles ago.
The hydrovac is rebuilt and the hoses for that have been replaced. Its performance seems to be sporadic. Sometimes the pedal feels normal and then hard a rock (that's when the brakes are dragging usually). I don't think the unit is bad, but something else is hanging up.
The front wheel cylinders are leaking and the brake shoes show uneven wear.
The brakes have always tended to drag, but the shuddering has only happened since the installation of the new (2nd time) master cylinder. It seems the problem is in the front only. Could it be sticking wheel cylinders? I'm planning on replacing them as soon as possible, as well as shoes AND return springs if I can get them. Can return springs look ok, but be weak and allow a sticky cylinder to keep the shoes more or less engaged? I'm pretty sure that in the multiple times (as in more than 8 times this car has been in for brake work) the car has been worked on the steel brake lines have been inspected. This car has been bled more than an obsessive blood donor!
I'm sticking with the stock setup because I don't have the money to get a Turner system and I want to keep it stock.
The hydrovac is rebuilt and the hoses for that have been replaced. Its performance seems to be sporadic. Sometimes the pedal feels normal and then hard a rock (that's when the brakes are dragging usually). I don't think the unit is bad, but something else is hanging up.
The front wheel cylinders are leaking and the brake shoes show uneven wear.
The brakes have always tended to drag, but the shuddering has only happened since the installation of the new (2nd time) master cylinder. It seems the problem is in the front only. Could it be sticking wheel cylinders? I'm planning on replacing them as soon as possible, as well as shoes AND return springs if I can get them. Can return springs look ok, but be weak and allow a sticky cylinder to keep the shoes more or less engaged? I'm pretty sure that in the multiple times (as in more than 8 times this car has been in for brake work) the car has been worked on the steel brake lines have been inspected. This car has been bled more than an obsessive blood donor!
I'm sticking with the stock setup because I don't have the money to get a Turner system and I want to keep it stock.
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