HELP ASAP - 77 T/A Master Cylinder and Prop. Valve Question
I gotta do some emergency repairs on my freinds 77 trans am, AGAIN in the sears parking lot, AGAIN. lol
A while back, the pedal was hitting the floor, i replaced the master cylinder, bench bled, etc. Ran good for a while, he went to work, came out and no brakes. Weird. Pedal goes right to the floor again.
So today, i went a took a look at it, bled all 4 wheels around and still.. to the floor.
Im thinkin the master cylinder (bought from autozone) is defective, or i didnt bench bleed it right, or something entirely else is wrong.
I read around about having to press in the proportioning valve, ***. I have no clue as to push it in, is it the round cylinder thing or the tiny hole on the cylinder thing i have to push in? A website stated to use a c-clamp but i couldnt get a c-clamp to even fit in that area TO push it in.
What are the chances of the proportioning valve being the culprit?
Thanks for any help!