Friends:
My 235 sings a constant musical note while running, when idling and running down the road. It is the same kind of sound you get wetting your finger and rubbing it around the rim of a glass. It is continuous and the tone and intensity stays the same regardless of engine speed. ! What is the cause? It is difficult to isolate to a specific part of the engine but seems louder on the distributor side. The only thing I can guess is the lip seal on the timing gear cover. I have no oil leaks.
Regards,
Joe
