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Overpressurizing Master Cylinder

jacknifetoaswan

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Hey everyone. I was just using my brand new Motive Power Bleeder to flush my brake system. I was keeping the system pressurized to 15 PSI +/- 2 PSI.

While I was doing the front passenger Brembo, the Bleeder fell off the shelf I had it sitting on, and the nipple that goes into the cap was damaged, letting air into the system. I looked at the bottle, and it was pressurized to 25 PSI.

I stopped there and cobbled together a new nipple, but I can't get a good seal, so I need to go to Lowe's to get some plumbing parts.

Anyway, some fluid leaked from the old nipple and the new. I've cleaned up everything I can find, though I'm sure there's some fluid inside the engine bay that'll drip out today or tomorrow or simply evaporate. RIP engine bay paint.

My worry is that I damaged the master cylinder by overpressurizing it. Anyone have any input?

JR
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NightmareMoon

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How many PSI do you think the master cylinder delivers to the brakes? Its got to be more than 25. You can stand on the brake pedal and its fine. I think you’re fine. Worst case it would leak at the pressure bleeder to cap seal, or the pressure bleeder lines would leak. I doubt you could hurt the car if you tried.
 
 




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