Thought about that one. The shaft turns with the knob and also goes in and
out. I was, at first hoping it was the knob.

I have recently started some instrument training and when doind timed turns
noticed quite a bit of discrepancy between the clock and the resulting turn
(over 20 degrees). While I may not have been spot on in maintaining the
turn rate via the needle & ball, there's no way I was that sloppy,
particularly since the error was similar with turns in both directions.

I'm just going to change it rather than fix it. Now the challenge is to
find a replacement that won't break the bank.

Thanks

Mike
"Dave" wrote in message
...
Ummm.. make sure the Knob is not loose and turning freely. We had the
same symptoms, loose knob slipped "in" on the shaft hard against the
panel, so could not push the shaft in to uncage the gyro, so it coud
not be "set". Slid knob back out to proper position on shaft, toghten
set screw, fixed..

Maybe?

Dave


On Mon, 20 Feb 2006 22:33:53 -0600, "mbremer216"
wrote:

Well, it looks like my directional gyro just went belly up. When I went
for
a ride today, the setting knob was very sticky, and then suddenly not
sticky
at all as it now rotates freely and doesn't feel like it is engaging
anything. The gyro card does not rotate with the knob.

I have a Cherokee with a heading tracking Autocontrol III autopilot.

What are opinions regarding having it rebuilt as opposed to replaced?

Thanks

Mike