pressure bleeding

[rede30]

i have a tool from snap on that screws onto the brake fluid Reservoir and then you can put air through the system when bleeding. i am sure you guys know what this is but i dont really know how to use it. could i hear some step by step coments you guys have. thanks.

Dustin

[RCWells]

Well, I have one as well (from BavAuto), but so far my results have been less than spectacular. I followed the directions but I think a step is missing somewhere. It seemed like I added more air into my system than what I possibly could have started with. End result is still barely mediocre.

Somebody that has one of these and knows how to properly use it, please chime in.

[nando]

how did you end up with air in the system? I have the same bavauto power bleeder, and it's physically impossible to pump air inside. once the fluid level reaches a certain point the whole thing depressurizes, way before you can put any air through.

Fill it with fluid, connect it to your resivior, pressurize. just make sure you don't go past 15psi. use a bit of vinyl tubing and a milk jug or something similar to catch the old fluid. then just crack open the bleeder valves (one at a time) and wait. it will take a while too, but it's just standing around and waiting and pumping the bleeder up every once in a while.

[RCWells]

I started with what I assume to be a bit of air in the system by the spongy pedal feel. As I pumped up the PB to 15psi, and began to bleed the fluid, a LOT of air began to come out. I went through a whole liter of fluid and then had to get more before I could get all the air out of all 4 lines. This CAN'T be right. I don't know where the hell all that air came from, if not from the PB.

I simply filled the PB with the fluid, attached the thing to the reservoir, then pumped it up to 15psi and began at the right rear of the car bleeding the fluid, all as directed. Still, even now, I have a relatively spongy brake feel.

What gives? Possible problems??

[nando]

well your pedal will never be rock hard, even with SS lines it can still seem a bit mushy. if you had a ton of air in your lines though it wouldn't be the power bleeders fault.

could also be a bad master cylinder or booster. try stepping on your brakes with the car turned off once, talk about a soft pedal..

[RCWells]

True, it may be as good as it's going to get. Maybe do the booster upgrade?

[nickmp0wer]

i think im gunna be doing that