Master Cylinde Bleeding

[chevy4x4power]

Quick noob question yall, i apologize in advance. I got a master cylinder for my 78 jimmy from advanced.

To bleed it all i have to do is fill up both chambers with brake fluid, put both plastic plugs in where lines go. Then proceed to prime it until it is hard to push much further/ very firm?

Then attach to brake lines and it is good to go, correct?


Also, to bleed by myself just attache 1/4 inch hose to bleeder and run into container that is filled with brake fluid, correct ?

 

[diesel4me]

I have bled them just by bolting the master on,and by using the little hoses and fittings that come in the box with a new or rebuilt one,you can just pump the pedal to bleed it,after looping the little hoses back into the two chambers and keep them submerged under the fluid--I use a spring clamp or clothes pin to hold those hoses in place while bleeding it..about 10 pumps should push out all the air..

 

[dremu]

Quick noob question yall, i apologize in advance. I got a master cylinder for my 78 jimmy from advanced.

To bleed it all i have to do is fill up both chambers with brake fluid, put both plastic plugs in where lines go. Then proceed to prime it until it is hard to push much further/ very firm?

Eh, that's a start, but you'll still have air in the ports behind those plastic plugs.

I use one of these kits

http://www.amazon.com/Dorman-13911-Master-Cylinder-Bleeder/dp/B001SG8ZC0

(your local parts house should have them, either under the Help! name or something similar)

You find the matching fitting (on our trucks generally one 1/2" fine and one 9/16" fine), then the rubber hoses go from those into the reservoir.

This circulates fluid through the whole thing, makes bleeding it in the truck MUCH easier.

Then attach to brake lines and it is good to go, correct?

Also, to bleed by myself just attache 1/4 inch hose to bleeder and run into container that is filled with brake fluid, correct ?

Though it's possible, I loathe this method as it takes forever and I'm never convinced you get *all* the air out.

I've dinked with pressured bleeding and gravity bleeding and, well, I think every method known to man, and have settled on vacuum bleeding. Again, your local parts house should have a Mityvac or the like:

http://www.harborfreight.com/brake-bleeder-and-vacuum-pump-kit-69328.html

I find the HF cheapo lasts a coupla years and then wears out, fwiw, vs the Mityvac ones are supposed to be better.

This way you just sit at the wheel and pull until you get only fluid, and you're done.

I'm assuming you have a Chilton's/Hayne's type manual and know the basics (start at the wheel farthest from the master, work your way in), etc.

-- A