scottfromiowa Posted April 12, 2010 Report Posted April 12, 2010 I often don't use flaps on take off when flying alone in my '66 M20E. On a recent flight I went to pump in flaps on short final and pump was loose (no pressure). Landing uneventful and had braking action on roll-out. Mechanic pulled belly panel and replaced 0-rings in master. We really had to work forcing hydraullic fluid into reservoir to get flaps to function... Here is my question...I have now flown three times following the O-ring replacement and during pre-flight I have had to do a couple of pumps to get pressure...and then the flaps do their normal four stokes to lower full flaps. Anyone else have this. I previously had immediate pressure and two strokes to 1/2 flaps four to full. Thoughts? Second question...Plan to replace tires and brake pads at annual. What is involved in doing seals for brake master cylinder? Where is it/are they (one or two)? Thanks in advance for the "free" education. I know the brakes and flaps share the same hydraullic system...Also How big a deal to change brake lines (exposed on gear) These are OEM and I believe some leaking occuring here... Scott Quote
carusoam Posted April 12, 2010 Report Posted April 12, 2010 http://www.mooneyspace.com/index.cfm?mainaction=posts&forumid=1&threadid=719&postid=10093&page=1 Scott, Strange thing, I just gave a response to similar issue on the above "brakes" thread. Have a look, let me know if it was helpful.... Access to two brake cyllinders and flap pump is available by removing the belly panels under the cabin. I found the brake lines to be in good condition. They are mostly metal tubes. The supply side of the pumps seem to be lower pressure rubber.... -a- Quote
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