John,
With it stuck in the closed position (no heat coming up), are you only having driveability issues prior to the engine reaching normal operating temperature?
The reason that I ask this is because having it stuck in the closed position is far superior to having one stuck in the open position (heat coming up).
I am not questioning your highly prized, extravagant solution (I had the privilege of viewing it in person). I am trying to wrap my head around how a stuck-in-the-closed-position flapper would cause icing once normal operating temperature was reached. If that were true, then all 216s would ice up once operating temperature was reached.
I think that I read somewhere that a lean carburetor will increase the chance of icing. Since climatic conditions need to be just right for icing to occur, one may go a long time without experiencing it even if the carb was set up too lean.
Out of wind now. Feel free to tell me to just shut up, just don't call me Fatso.
Carl
Last edited by 52Carl; 04/03/2016 2:32 AM.
