Re: volvo penta 5.0 gl overheating
I know my volvo does not like to pump water off of the muffs. I dunked it in the river, on a week day evening, when the launch ramp wasnt busy. Fired it up, pulled the outlet hose off the pump. and almost filled the bilge with the amount of water it was pumping! Reconnected, and never went over 130deg. My original overheat problem was a thermostat corroded shut, and a water outlet on the drive that was corroded where the hose connected. Mine is older than yours, so I am not sure if your out drive has a water outlet. If it does, I would check it for corrosion, plus I used aviation sealer at all the hose connections to make sure the hoses sealed. Considering your raw water pump is on the crank, I assume you do have a water outlet on the drive. Good luck, and keep us posted!