just recently picked up a boat that hadnt been used in a year. first thing before even trying to fire it up i dumped the gas tank and flushed it out. second i drained and refilled lower unit and then replaced impeller, housing and all seals. added gas and she fired right up in a few seconds and idled smooth. after about 30 second i felt cylinder heads and they were getting really warm so i shut her down and pulled lower unit to recheck pump and tube allingment. all looked good so i put the hose to the intake tube and had good flow out of bottom of cylinders as seen in this screenshot from my video.
next i put the hose to bottom of each cylinder(not at same time) and had the same kind of flow out of the other cylinder as i did when it was hooked to intake pipe. reinstalled lower unit making sure tudes were allinged and seated. fired her up and and same result as before. crankcase cover is cool but cylinder covers getting hot. heres the flow of left side while running.
and right side.
i have videos but it wouldnt let me upload them. so my question is. where should i start? possible blockage somewhere? i have not replaced the thermostat but i figured with the hoses pulled off bottom of cylinders its basically taking it out of the picture for now. any help appreciated.
next i put the hose to bottom of each cylinder(not at same time) and had the same kind of flow out of the other cylinder as i did when it was hooked to intake pipe. reinstalled lower unit making sure tudes were allinged and seated. fired her up and and same result as before. crankcase cover is cool but cylinder covers getting hot. heres the flow of left side while running.
and right side.
i have videos but it wouldnt let me upload them. so my question is. where should i start? possible blockage somewhere? i have not replaced the thermostat but i figured with the hoses pulled off bottom of cylinders its basically taking it out of the picture for now. any help appreciated.
