gravity brake fluid change over...???? does this sound right???

[jerryb]

I hear that an efficent method of completely changing brake fluid is to crack open all 4 valves and be ready to start filling the brake reservoir. Wait for a steady stream of new brake fluid..... this should drive the old fluid out as wellas bubbles. Close off each caliper and then finish using the normal pump and bleed procedure.

 

Does this make sense?? Or should I stick with one caliper at a time...starting from the furthest away.

[JMortensen]

I wouldn't describe gravity bleeding as "efficient". It works to get SOME fluid in the system if there was none previously, as sometimes it can be hard to get fluid through the lines in that situation. I wouldn't ever use it for a regular bleed.

[jerryb]

Thanx...as I suspected.....

 

 

I wouldn't describe gravity bleeding as "efficient". It works to get SOME fluid in the system if there was none previously, as sometimes it can be hard to get fluid through the lines in that situation. I wouldn't ever use it for a regular bleed.

[srgunz]

Jerry, I have done this many times and seems to work very well. However not as you describe. I do only one bleeder at a time. I do not understand why they would say all four at once as you suggest. The front and rear are independent of one another for one thing. Works well when you have nobody handy to pump the pedal too.

I gravity bleed my clutch every year. I consider it very important for good operation.

[jerryb]

Well ...I gravity feed my clutch yesterday and it worked great. It needed a real clean out!!

 

As for the brakes...I used the old fashion pump method with a bleed container. That way I can exchange the bulk of the fluid myself. Then I have my son help with finishing it off.

 

Thanx guys...