I have a 3.7mercruiser 190 hp and the engine got rebuild 2 year ago. Oil is HD 40. Engine temp is 160 F. I get the problem after 1 hour on the water
My problem is that I am loosing my oil pressure in idle, when it is a hot summer day 100 F and the water is over 80 F.
At idling (600 rpm) I...
