Lwebb1952

Thanks for the Reply Randy. My 78 20 J didn’t have the set screw. To install, I ended up cutting about a 2 in oblong hole in the plastic duct at each location, aft the front deflectors at the two front deflectors at the front deflectors and on the side of the rear deflectors in line with the screw knobs. I installed the two washers above the damper, then made sure they were aligned with the hole with a appropriate sized Phillips screw driver, then pushed up the deflector assembly. I then used a wrench with tape, like you, to hold the 3/8 nut. The damper stops, which are screws, I twisted step back up into the duct, leaving just enough that I could still turn them back out with needle nose pliers after the deflector was installed. With the wrench I place , I used the knob to tighten the assembly, then used the needle nose pliers to twist the stops back out. On one of the deflectors I made the hole slightly too large where it slips on the knob. I was able to solve the issue by using an appropriate oRing size. Thanks for the lead on Plane Plastics as a source for the PMA deflectors!

Rrbeck11. How did you manage to install the new deflectors once the old ones were removed?

Did you sell this antenna yet?

The Century manual is not straight forward on this subject but the way it the system acts makes sense. Thanks. More troubleshooting to do on the pitch and altitude hold.

i heard a lot about these pins. What is the recommendation of tightening the female pins?

I have a 78 Mooney 20J with a Century III autopilot and electric trim. There is currently a problem with the pitch and the pitch and altitude hold, neither seem to work right in the air. But, separate from the problem, neither the Century III pitch or the altitude hold seem to work unless the electric trim switch is turned on. Is this correct, or should the Century III pitch functions work independent of the electric trim. Does the electric trim and the pitch servos work in conjunction when the autopilot is on? The electric trim switch in my case is on the pilot yoke, forward to trim nose down, back to trim nose up, and push down to disengage the autopilot. Thanks.