Another cause of nosewheel shimmy

>We have a shop that's proved that shimmy isn't inevitable in Cessnas, as
>other shops have tried to tell me in the past.

The cures of nosewheel shimmy in Cessnas ought to be well known but are
apparently not. You only start with the shimmy dampener and wheel balancing.
Equally important are torque link shimming and steering collar shimming. When
all of these are properly attended to there will be no shimmy.

>Turned out
>to be water in the wheel, trapped between the two halves and acting like a
>wheel weight.

Now that is unusual.

John Dupre'

>I installed the new Lord shimmy damper and have been pleased. Made no
>other adjustments other than the shimming of the damper when installed.
>

That is great but remember that the damper only dampens it does not cure
shimmy. So you still have shimmy going on but perhaps at a lesser magnitude
but all the things that wear and cause shimmy are still wearing.

John Dupre'