Well, I needed to put a new water pump seal in my 2010 800. After installation I filled the coolant level and started the engine. BIG MISTAKE I find out now. Temp shot up to 250 quick. shut engine off and went to google. Several peeps said to "milk" the upper and lower hoses to remove air. So I did. Restarted the engine added coolant milked the hose and temp shot up again. Shut engine off and back to google I go. Ah…… theres a bleeder on top of the head. opened bleeder and some air but mostly anti freeze. refilled coolant and started engine. Temp is fine but coolant coming from front cylinder pipe. Did I crack a head or blow a gasket. Im guessing head.