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codingparadox · 10-27-2008, 04:26 PM

Someone once told me an easy test.

Press the brake pedal hard, and then hold that amount of pressure. If the pedal slowly sinks to the floor, it's a hydraulic problem (i.e. master cylinder is toast or you have a leak somewhere). If the pedal stays put, but it's deeper than you want, it means you have air in your lines.

I applied this test to my SM, found that the pedal continued falling. Changed my master cylinder. Sho' 'nuff, all was well.

10-27-2008, 04:26 PM	#4 (permalink)
codingparadox Newbie Elise Owner Join Date: Aug 2008 Location: Redmond, WA Posts: 91	Someone once told me an easy test. Press the brake pedal hard, and then hold that amount of pressure. If the pedal slowly sinks to the floor, it's a hydraulic problem (i.e. master cylinder is toast or you have a leak somewhere). If the pedal stays put, but it's deeper than you want, it means you have air in your lines. I applied this test to my SM, found that the pedal continued falling. Changed my master cylinder. Sho' 'nuff, all was well. __________________ 2006 Lotus Elise - SS Autocross 2006 Mazda RX-8 - For Sale! Buy me! 1992 Mazda Miata - Spec Miata Club Racer 1994 Mazda Miata - DD when I'm scared to take the Elise out 1994 GMC Suburban - Gets the Miata and Elise to their respective tracks http://akilla.net/pics/sig.jpg