bleeding master cylinder problems
09-09-2015, 12:39 PM
#21
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glad to hear it's working.
fwiw, you don't need to bench bleed mc's, all it does is provide an opportunity for dirt and junk to get into the mc.
what i did was bolt everything up in the truck, pump the brake pedal, then use a 2x4 that was long enough to hold the pedal down, from the front seat.
put rags under the mc, then crack the brake lines to bleed it off, pump and prop again, etc.
obviously easier if you have an assistant instead of a 2x4 :-)
fwiw, you don't need to bench bleed mc's, all it does is provide an opportunity for dirt and junk to get into the mc.
what i did was bolt everything up in the truck, pump the brake pedal, then use a 2x4 that was long enough to hold the pedal down, from the front seat.
put rags under the mc, then crack the brake lines to bleed it off, pump and prop again, etc.
obviously easier if you have an assistant instead of a 2x4 :-)
Brakes work great now! I had a worsening pulsation and a bad brake noise coming from the drums when my high school auto shop installed basically the cheapest brake parts we could find locally a few years ago. That is what started my brake system overhaul in the first place. When I went to bleed the brakes after I installed the wheel cylinders, I went to top off the MC and that is when I noticed the leak out of the back of the MC. Now the brakes are so smooth and quiet with all new Toyota (Aisin) hydraulic components, Toyota pads, rotors, shoes, drums, and other hardware.
Last edited by old87yota; 09-09-2015 at 12:44 PM.
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