In a message dated 96-09-19 02:19:06 EDT, you write:

>
> BTW, the same vendor at the flea market also had an air motor out of
> a Gulbransen for sale -- it had little metal pistons instead of
> pneumatics.  Is this normal with Gulbransens?
>
>

Most Gulbransen air motors I have seen have a group of three bellows
with the center decks as movable attached to the cam shaft.  Is anyone
familiar with the pistons?

SKG