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The clutch resovoir isn't separated at all >>>
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Posted by Kyle [Email] (more from Kyle) on Wed, 8 Jan 2003 10:29:11 Share Post by Email
In Reply to: Re: large pocket of air>>>, Brian, Wed, 8 Jan 2003 02:23:26
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I just flushed my system and I know for a fact that the level in all compartments in the reservoir drops equally as you remove fluid, because I siphoned the fluid from the main compartment and the fluid in the other compartments dropped too.

The air pocket can be effectively hidden in the brake system. When the air is trapped in the accumulator, the hydraulic pump just compresses it, so it wouldn't affect braking performance the same way that it affects the clutch when the air is sitting in the reservoir. The front brakes are NOT directly connected to the accumulator under normal braking. The front brakes are operated directly from the tandem master cylinder.

You should really bleed the WHOLE SYSTEM, at the VERY LEAST the rear brakes in order to solve this problem.

The correct procedure for bleeding the rear brakes -
Turn on the ignition switch but don't start the car. Have an assistant hold the brake pedal to the floor. Open a rear caliper bleed screw and let fluid flow. As soon as you open the bleed screw, you will hear the hydraulic pump activate and the fluid will continuously flow until you close the bleed screw. The pump will run briefly after you close the screw in order to pressurize the accumulator. The volume in the resovoir will be reduced by exactly the amount that is removed at the rear calipers. Therfore, you can fill the reservoir to the very top and simply bleed the rear calipers until the level falls to the MAX line again.

I think if you do this, you will find a large quantity of air flowing out of the rear calipers. This, assuming that you bleed the system when the air is in the accumulator and not the reservoir.

Go ahead, give it a try, you've got nothing to lose.

-Kyle

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