1980 P30 Brake Failure

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1980 P30 Brake Failure

Home > Discussion Forum > Mechanic's Corner - Brakes

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All Messages in Thread	Author	Date
1980 P30 Brake Failure	Norm	7-5-08
My original problem was like many others here on the board. My front left wheel would lock up after hard braking. I purchased new flex brake lines for the front and preped for the install. Unfortunately when I started the RV to to pull into onto the carport the pedal went straight to the floor. I checked the master cylinder and the fron(large reservoir) was empty. So I topped it of and still no resistance on the pedal. I went ahead and replaced the lines but still have nothing on the pedal. Is this a MC issue. I was going to bleed the brakes but it feels like its not pumping at all. Could this be a bad MC????
Re: 1980 P30 Brake Failure	Norm	7-6-08
Update: After using a few choice 4 letter words I finally got the master cylinder removed. It appeared to have a minor leak on the side connected to the hydro boost. I put the MC on my work bench and cyled it with a screwdriver and only one of the reservoirs shot fluid out. Bad MC verified on bench test also. After a short trip to autozone for an $18 dollar purchase I began the install. Few more 4 letter words and it was in. After bleading down the brakes the pedal imediately firmed up. Road test was better thanexpected.
Re: 1980 P30 Brake Failure	rich	7-6-08
Great Job Norm I am glad it's fixed--- thanks for letting us know---rich in Va.