So. I got a 93 Rx7 from a friend of mine. The front calipers stick after about 10-15 minutes of driving.

Only the fronts. I've never heard of this before. Any idea's?

 

The brake booster hose can do some funny things.

You should be more specific though...

Are you saying the brake pedal gets stuck down and the brakes stay on?
Or do the brakes stay on and the pedal comes back to normal position?

Or when you say they stick - do they get heavy? i.e no power assist braking?

 

Sorry about the whole not being specific bit. The front brakes just stick. As in they lock up. As for the pedal action, I dont exactly remember, I just got the car back after a year and a half of it sitting at a friends house. I guess I'll go re-assemble and lube everything up so it can go. More later.

 

Check the soft lines going to the front calipers. They can get either clogged, or deteriorate and collapse internally, meaning the fluid will be able to be forced to the caliper, but pressure will not be able to be bled off.

 

I'll check that out when the new brake lines get here, I thought that that might be a problem, ordered some braided stainless lines a few days ago before the car arrived.