Speed Bleeder question

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Jul 30, 2007 | 01:46 PM

bgames

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Instructor

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From: Naperville Illinois

Speed Bleeder question

For those of you with speed bleeders, how do you flush the entire system? Do you have to sit inside the car with the brake pedal depressed until the fresh fluid comes out at the caliper? If so, considering you are inside the car, how do you (a) know when the fresh fluid is coming out the caliper, and (b) maintain the proper level of fluid in the master cylinder?

Any advice would be appreciated?

Thanks.

Jason

Jul 30, 2007 | 02:03 PM

LoneStarFRC

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Quote:

Originally Posted by bgames

I slip a clear piece of vinyl tubing on the bleeder and run it down into a glass jar (glass for the weight) and start slowly pushing/releasing the pedal. After about 3 or 4 pumps I check the line to see if clear fluid is coming out. I also check the M/C to make sure it doesn't get too low.
BTW, I use a turkey baster to suck as much of the old fluid out of the M/C and fill with fresh before I start. It speeds up the process of getting fresh fluid into the system.
Remember: the speed bleeders have check valves in them so you can pump the pedal without sucking air back in.

Jul 30, 2007 | 03:11 PM

bgames

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From: Naperville Illinois

That sounds like the bleeding process. Is that the same process by which you flush the entire system?

Jason

Jul 30, 2007 | 04:22 PM

timemender

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From: Stark County Ohio

Quote:

Originally Posted by bgames

That sounds like the bleeding process. Is that the same process by which you flush the entire system?

Jason

Exactly. You must “flush” using the proper bleeding procedure so as to not draw air into the system.

Jul 30, 2007 | 04:36 PM

LoneStarFRC

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Quote:

Originally Posted by timemender

Exactly. You must “flush” using the proper bleeding procedure so as to not draw air into the system.

That's what speed bleeders prevent (drawing air) and you wind up replacing probably 90% of the fluid in the system. Using speed bleeders just prevents having to have two people unless you just want to. This technique replaces all the fluid in the M/C, the lines and the calipers.

In case you're thinking of flushing the entire system (including the BPMV) then that requires a Tech II scan tool and following the "Auto Bleed" process.

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