HCSader73 posted:C W Burfle posted:So the air loss must be internal, but where
There are "walls" inside partitioning off the the required chambers.
I've cut my own gaskets using blotter paper (is it still available?)
And I am fairly certain I've seen reproduction gaskets (try Train Tender)
I have never used a putty or other sealant. I also wonder whether you have excess sealant inside that has altered the characteristics of the chambers and passages, killing the sound.
Good points, C.W.! I did indeed replace the gasket with a new one from Train Tender. The sealant was applied in small amounts externally after (obviously) the backplate was secured. Applying the sealant has not altered the problem one bit.
I will take a look at the armature rotation direction. If it is spinning clockwise, then I will disassemble the bugger and start again from scratch. But by gum that whistle is gonna sound if I have to stick a bird inside it with electrodes on its behind.
Great idea...
