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Where the heck is my brake fluid going?!?

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Kjnastro

Well-Known Member
Joined
Feb 19, 2012
Messages
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Hey Gang,

I've exhausted all ideas. I need some help.

I have to pump brake fluid into my brakes about once every 3 months because they are bone dry. I do it the standard way - up from the bottom and purge the bubbles out the top of the cylinder.

I have standard Scott cylinders with new diaphragms and springs. Attached to those are Scott parking brake valves. At the other end are Groves. They'll run nice and tight (not too tight...) for 2 months or so, then get noticeably weak. I'll deal with it for a flight or two then go bonkers and fix it.

I have checked under the floorboards. I have checked the belly. The hangar floor is clean. I have no clue where the fluid is going, and I am getting really sick and tired of undoing the front sling every time I have to service.

I use the brakes to taxi (one or two tight turns) and for runup. Almost never on landing.

Any ideas?
 

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