I have a 150 hp mercury saltwater. What should the running temp be at 4000 rpms?
W wjryan9 Recruit Joined May 28, 2012 Messages 1 May 28, 2012 #1 I have a 150 hp mercury saltwater. What should the running temp be at 4000 rpms?
O oldman570 Lieutenant Commander Joined Mar 25, 2011 Messages 1,615 May 28, 2012 #2 Re: Temperature I belive the water temp should be around 145 and the head temp near the same. If it runs higher you should check the popit valves and thermostat. Salt water dose bad things to motors if not flushed out proply after use. Oldman570
Re: Temperature I belive the water temp should be around 145 and the head temp near the same. If it runs higher you should check the popit valves and thermostat. Salt water dose bad things to motors if not flushed out proply after use. Oldman570
