jb,
I wish I had experience with that pump, but what you describe (rotor turning & jamming all at once with no vanes installed) sure sounds like something foriegn got inside the motor or it could still be a worn out thrust washer. Try operating it while holding the motor vertical (shaft up) & then rotate 180 deg (shaft down) & operate. If it is the thrust washers that should tell you. They're cheap by the way.
Ric


Pond Boss Subscriber & Books Owner


If you can read this ... thank a teacher. Since it's in english ... thank our military!
Ric