Need help,have old 20hp merc 200 runs good starts good but will not pump water thru the head therefore runs hot after a short time. Ireplace the impellerwho's in the leg by the way not on the foot like more modern motors, I've ran water from the flush port thru the head,also flush upright tube from pump to head. Any ideas where Ishould go next?
FiShNuT9
FiShNuT9