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Long story short, I decided to go for broke and change out the two
front rubber washers/ O rings in my pitot tube in the tail of my ASW-20B. Years of dry pitot tubes going in and out had taken their toll on the washers and they were starting to leak. Reminder to all - lightly grease your pitot tubes so they keep the internal washers happy. OK, the front washer is easy as cake to replace. It is only about an inch into the tube and took less than 60 seconds to fish a new one into place. The tube by the way is the diameter of a pencil. Real fun to work in and try to see what you are doing with a small flashlight...not! The back washer has been a real joy so far. It is set back about 3-4 inches and there is a groove in front of where it is supposed to go where the hole to the TE line is. As I said in the title, I am about 8 hours now into trying to fish the new O ring back into the groove it needs to go in. I have a thin metal probe with a small 90 degree hook at the end that works well enough. I can eventually get a piece of the O ring to seat into the right groove but pushing the rest of the O ring into the groove has proven elusive. Anyone else had any success seating a new washer/o ring? I figure it has to work in the next 20 or so hours of trying - LOL. Thanks for any tips or tricks. Bruno - B4 |
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