Brake Fluid Flush

[latvius]

Hmmm...good info - thanks! Definitely cheaper than buying all the other stuff!

 

[BeenChevy]

If you already have air in your caliper or lines, then your best bet will be pump it out in that case. Fill your cup with brake fluid in advance, submerge your bleeder tube, crack the bleeder and then slowly depress the pedal to the floor. When you let the pedal up re-check your master fluid level and bleeder tube - make sure no additional air bubbles near the bleeder. Also if you end up replacing the bleeders spend your brake bleed money on speed-bleeders. They have a ball-bearing that allows you to crack and pump fluid out and not let air intrude. Just be sure you seal them up before they corrode.

 

[thompsoj22]

Correct. Open the cap on your master, connect your tubing to the bleeder barb and crack it, and let'er run out. If your length of tube is long enough to reach down into your 'solo' cup and you want to feather the peddle a bit you can, just pour a little fluid into the bottom of your cup as not to suck air into the system.. really though once the tube fills with fluid, no need to pump. Allow the old to come out until clean, keeping an eye on the level in your master and work your way from the caliper furthest from master to the closest..

Wholly crap!!!!! if this method works im all over it. it seems like it should because by not pumping the pedal there is no risk of drawing air into the system!. I wish i would have tried this 40 years ago!!!

 

[BeenChevy]

It does work. The fluid creeping down the tubing from your bleeder is evidence that air isn't being drawn in and enough negative vacuum pressure is held. As the reservoir is drawn down and filled with new fluid old is being expelled. After years of doing this on multiple vehicles at an annual rate for the past ~4 years; fluid is clean and brakes have maintained good feel. Now I could see an argument that you may not be "flushing" contaminants from the calipers entirely by not actuating them but i'm satisfied.

 

[latvius]

So how long does it take doing this method?

 

[BeenChevy]

I do all 4 at once within a couple hours..

 

[ezstriper]

we have a air powered bleeder that pulls the fluid down thru the bleeders, work the best I've ever seen..

 

[BeenChevy]

That sounds slick. Reasonably priced? Solo cups and tubing is still pretty affordable.. time and effort is not.