Probably stupid question. But reaching my wits end chasing this long brake pedal. Started last track weekend with good pedal, first day last session pedal started going long. Second day pedal was long the whole day. Freshly flushed with SRF before the weekend.
After the track weekend replaced with SS lines and installed brass caliper guide bushings. Flushed with full 1L of bottle of SRF using motive system, MC never ran dry. Pedal still long after this work, feels identical.
All I can think of to try next is caliper rebuild then MC replacement. I don't think its an MC problem. With the engine off I can pump the pedal and it gets hard. Maybe 1/2 inch of travel before it gets hard. Once you start the engine the pedal travel becomes *very* long. I would think that if the booster was failing then the pedal would get harder not softer.
Is there an interval everyone uses to replace the square cut seal in the brake calipers? Would a failing square cut seal cause a long brake pedal? I would think that if air was getting past the seal then fluid would also be getting past the seal, right?
After the track weekend replaced with SS lines and installed brass caliper guide bushings. Flushed with full 1L of bottle of SRF using motive system, MC never ran dry. Pedal still long after this work, feels identical.
All I can think of to try next is caliper rebuild then MC replacement. I don't think its an MC problem. With the engine off I can pump the pedal and it gets hard. Maybe 1/2 inch of travel before it gets hard. Once you start the engine the pedal travel becomes *very* long. I would think that if the booster was failing then the pedal would get harder not softer.
Is there an interval everyone uses to replace the square cut seal in the brake calipers? Would a failing square cut seal cause a long brake pedal? I would think that if air was getting past the seal then fluid would also be getting past the seal, right?
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