If you do a repair on the caliper or install new pads, be aware the piston screws in to retract rather than being pressed in. The parking brake lever on the caliper operates a screw to press the pad against the disc
Not meaning to argue but are you serious? If you want a Vette or some other car, please don't destroy an original, the Reatta was never meant to be a hot rod, but an older gentleman's car for comfort and style. As a purest, my reaction to your question is...UGH!
I am a bit confused? If the pump is running, it should be draining the reservoir. Is the fluid level in the reservoir at the proper level when the ignition is off and the brakes are pumped 25 times to release all the fluid in the accumulator? Does the pump ever shut off and do the red and amber brake warning lights go out upon starting? Pull the electrical connector from the pressure switch and check for fluid in the connector indicating it has failed. My experience has been the switch is very reliable unless it is leaking
Hi! I also have an '89 Reatta coup in black and tan. Unless you really need to sell, you might consider keeping yours and enjoying it for some time as out of some 200,00 produced, less than half are registered telling us all that values will rise. If you must sell now you're not going to get much more than in the low-mid 20's for it. They're unique cars and fun to own as I'm sure you already know but more of a special interest car.