I had my pump bearings replaced by a machine shop and the pump shaft does not spin freely. It turns with no problem by hand. Is the shaft supposed to spin or should it be slightly tight?
The shaft should spim freely but not have any play left to right or up and down. It should be a perfect fit. If you have drag on the shaft then the bearings were not installed properly or damaged when installed.(nicked up or bent)
depends what you mean by up and down. up and down when the pump is mounted in the hull? or up and down when pump is standing on end on a bench. that is fore-aft play and is normal.