03-11-2008, 04:23 PM
If your grommets are worn I would replace them. They isolate the frame of the tuning condenser from electrically contacting the chassis. I had a set of worn grommets on a 51-932 and while it didn't cause the drift as in your case, it did cause the audio to become distorted, much like it was a bit off station and overloaded sounding. You should be able to take a quick resistance check between the chassis and the tuning condenser to see if in fact they are worn to the point that the condenser is making contact and possibly causing your issue.
