Quote:
Originally Posted by DanEC
He's referring to the auto-valve bleeder screws. They have a one way valve in them to prevent air from getting back in the calipers. To use them you loosen them slightly, hook up a bleed hose to a can and then start pumping the brake pedal. When the pedal is pushed it forces fluid past the relief valve and as soon as the pedal is released the valve shuts - so you can pump all you want as long as fluid is in the reservoir of the MC. You don't need pressure or vacuum bleeder pumps.
They are how I finally got my ERA bleed out. But I thought back in the early part of your thread that you had these on your calipers ???
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I have them on the rear calipers (GM Metric) and they are clean and work really well. The Sierra's have 1/8" bleeders, I could not find speed bleeders to fit the calipers. I take that back, I just found a 1/4-28 speed bleeder that fits in the 1/8" NPT housing.