C2 Brakes

[Al Williams]

[William C.]

Re: C2 Brakes

Assuming you have a pressure in the line (pedal is giving resistance), Since the left and right sides are connected via a single line from the front it should be relatively simple to (with a partner to apply pressure to the line) loosen the fittings one at a time from the rear junction block to the caliper to see where you loose flow. If it leaks when you loosen the line to the caliper, but you can't get flow thru the caliper then the issue is in the caliper itself. If you have a pressure bleeder to lightly pressurize the system it can be easier.

[Louis T.]

Re: C2 Brakes

Al,

I'm confused about your wording. Differentiating between steel brake line and flexible rubber brake hose, did you disconnect the hose from the caliper and provide suction/vacuum via the Mityvac to the hose, or did you disconnect the hose from the line?

If the former (and the vacuum resulted in no flow, then you should you disconnect the hose from the line and apply vacuum to the line (or just step on the brake pedal). If the fluid flows, then you have an internally-collapsed or otherwise obstructed rubber brake hose. Leaking isn't the only type of rubber brake hose failure, and if collapsed or otherwise obstructed, it would still hold vacuum. Other types of hose failure include bulging/ballooning under pressure, resulting in reduced braking from that wheel, and the type of collapse where the return fluid flow is restricted, causing a dragging brake.

Good luck!

Louis