Just leave the upper hose disconnected at the radiator nipple and start the engine. If the pump is working, you'll know it right away! I worked on a little Japanese 4 cylinder engine once that had a stamped sheet metal water pump impeller which had rusted away to less than half its original diameter- - - -mostly nothing but the hub was spinning with the shaft. The only complaint the customer had was "The heater doesn't work right!" Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt! There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway Love your enemies and drive 'em nuts!