prop synch

[Pete Somers]

The pot does give problems and the only way to check this is to replace it.
It does sound like either there is alot of play in the gearing or there is something wrong with the front pickup and it is not sensing the front prop RPM so the rear will hunt.
Do a check of the front pickup and a resistance check.
There is a separate book for the Cessna sync systems and contains all the info for checking out the system and the info on the test box.

Regards
Pete