careful with tightening the tee handles. if they are movable, and not corroded tight, they only have to be finger tight, not turned down with pliers. they tend to snap off.
there is, as doug said, an adapter and spring that goes between the pump motor shaft and the keyway on the pump assm. if that spring is missing,just use another one that fits. hwh can tell you what size. if the adapter is gone, its a major problem. more often than not, both are gone.
its often easier to buy another pump and motor assembly than to spend days looking for that part.
