Reverse Brake Bleeding.

wildspirit97

It could be me, but that seems a bit more complicated than using a vacuum pump system like the Mity Vac or one similar I found at Harbor Freight for $15.

Apyle

I've seen this done on certain hydraulic clutch systems in cars before. I seems to work on them. Why not?

glider

It can be used on both systems with good results.

Meatball64

I've used this method in the past and it works pretty well.

Heatwave

Question: How much brake fluid (ounces, cc, ml, etc.) does it take to fill the front (dual discs) and rear systems on an '08 RKC?

Reason I'm asking: local farmers' co-op has these enormous large-animal hypodermic syringes that hold 2 ounces (60 cc) of fluid ... $1.49 ea. I'm thinking about attaching medical tubing to the syringe, plugging the free end onto the bleeder valve, and "injecting" brake fluid into the systems. It should be quick, clean, easy, air-free, and cheap.

Anybody see problems or shortcomings with this approach?

BOBFLHTC

I just installed Russell Speed bleeders this fall (they have a ball bearing to prevent backwash and are pretty reasonably priced) to the front and rear rotors. It was alot of work the first time since I introduced plenty of air removing the bleed screws but I am hoping it will make life easier next time and thereafter. All I should have to do is loosen them and pump the levers till I have displaced enough fluid.

TQuentin1

Nope. Sounds like a good approach. If you have to refill the syringe, just close the bleeder valve, refill the syringe, plug the tubing back on the bleeder, hold the syringe up above the bleeder until any air migrates up out of the tubing and up to the bottom of the plunger. Then open the bleeder and continue.

Note - make sure you start with a fairly empty reservoir!

TQ

fin_676

My syringe takes 100ml and its far more than i need to reverse bleed my front brake but i do have single disc and an older model as for suitable plastic pipe you can get it at the petshop used for fish tank air hose its also similar to the pipe used for car window washers you should be able to get it at a car parts store
warming the ends of the pipe helps it to stretch fit on to the syringe and the bleeder can be sat in a cup of hot water for a wee while or use a hot air gun
loosley fit the brake resevoir cover prior to the operation to prevent brake fluid splashing out
when you push the syringe plunger itll go easy for a wee bit then itll feel like a blockage thats the point at which you are trying to force past the master cylinder seals into the resevoir if you push hard at this point itll fold the seal and squirt out of the resevoir makes a mess if you using dot 5 but if your using a glycol based fluid its a very good paint stripper

Brian

Heatwave

Brian: So ... are you saying to hold steady pressure when you feel resistance on the plunger so that the fluid goes slowly but steadily into the reservoir? Don't press the plunger harder when resistance develops ... just hold steady pressure and let the fluid work its way thru the lines and into the reservoir?