Technical Tips > Brakes, Suspensions, Steering, Wheels & Tyres

Bled new Wilwood brakes but still spongy pedal

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jimandemma:
Took the proportional valve out as thought the switch had locked it out, nup, centered (well, didn't hear a click when I removed the switch). I'm going to get a new one anyways.

jimandemma:
Looking like the proportional valve piston is stuck. Took it apart today and could not move the piston. In the picture it looked centered, but have found that the switch pin is supposed to sit in a divot. When looking down the switch hole, you can see the shaft of the piston, not the divot. Must have done this when bleeding using the pump and hold method. Also found out that a bleeder tool is to be placed into the switch hole to stop the piston moving during the bleeding process. New one on the way, will keep everyone updated on the 'saga'. Jim

Vettech:
You look like becoming the clubs brake expert!!!!!!...

bfit:

--- Quote from: jimandemma on March 26, 2018, 07:53:50 PM ---Looking like the proportional valve piston is stuck. Took it apart today and could not move the piston. In the picture it looked centered, but have found that the switch pin is supposed to sit in a divot. When looking down the switch hole, you can see the shaft of the piston, not the divot. Must have done this when bleeding using the pump and hold method. Also found out that a bleeder tool is to be placed into the switch hole to stop the piston moving during the bleeding process. New one on the way, will keep everyone updated on the 'saga'. Jim

--- End quote ---

Progress , BUT  wait till it’s actually working before the party.

jimandemma:
No party yet until all is working for sure.

Am an expert in these brakes now though, plus have every possible tool to do the job as well now.

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