05-12-2010, 08:14 PM
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CC Member
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Join Date: Oct 2003
Location: Golden Isles,
GA
Cobra Make, Engine: Butler Cobra. 350 Chevy Engine, blueprinted, heads cc'd, ported, polished, manifolds matched, big valves, 1.6 roller rockers, TB Injected, mild cam, MSD crank trigger electronic ignition. TKO-600 transmission. XKE Jaguar rear. IFS by Fast Cars
Posts: 558
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Not Ranked
Also, if your master cylinder/reservoir is located below the height of the brake cylinders, the fluid can, and will drain back to the master cylinder retracting the pistons, thus increasing the gap between pistons/pads & rotors. So first pump you fill the gap and second pump you build full pressure.
If your condition is as above you can do one of two things.
1: change the master cylinder to one with a remote reservoir and mount the reservoir as high as you can in a convenient location. See my photo album.
2: You can put pressure residual valves in the brake lines as close to the master as possible. These little valves will maintain about 2psi pressure in the lines. In essence keeping the fluid where it should be, in the caliper.
If you have air in system you will have spongy pedal syndrome all the time.
Arthur
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