Question on brake bleeding...

[jcboy]

why are you bleeding it on the master cylinder end? the air inside the lines will still be there if ever. bleed it on the end of the line near the brake cylinder/wheel you serivced, do what 's called "pump-pump-pump-stay".

HTH.

[Geoff Peace]

Originally Posted by jcboy

why are you bleeding it on the master cylinder end? the air inside the lines will still be there if ever. bleed it on the end of the line near the brake cylinder/wheel you serivced, do what 's called "pump-pump-pump-stay".

HTH.

This method was fine years ago. Do it on amodern car and the master cylinder piston will travel too far and the seals will be ruined. It has been known for the seals to be turned inside out by pump bleeding brakes. Either a pressure bleeder on the master cylinder, or vacuum at the wheels is the only safe way now.
Regards Geoff Peace.

[esse10]

You can still bleed them the old style as long as you know what you're doing and have good communications between yourself and the fellow doing the pedal pumping. The way you would move the master piston too far is if you keep pumping while the bleed valve is still partially opened, good communication and one pump and hold at a time works pretty good. Done that many times in all my cars, my 2 cents on this......