" Have been plagued with overh
" Have been plagued with overheat problems for the past 2 years with a Merc. 150 Saltwater OB (2000). Have replaced temp. sensor, t'stats and had pump checked at dealer (says ok). I have removed both t'stats and run water thru the flush connection. Water pours from both openings. Started engine with ears on lower unit and ran for less than a minuite and water only comes from left (facing from ground at rear) t'stat opening. Water comes just to the bottom of right side t'stat opening but does not run out. Sensor is not shorted or grounded, so wiring is not the problem. Still goes off at plane speed "sometimes". Have run engine for hours at 3200 rpm with no discoloration of head, fouling of plugs, etc. Have I checked the engine properly or am I missing something? Since the heads are offset (left lower than right), I assume this is why water favors the left side when running with t'stats out? I am by no means an xpert. Please help! "
" Have been plagued with overheat problems for the past 2 years with a Merc. 150 Saltwater OB (2000). Have replaced temp. sensor, t'stats and had pump checked at dealer (says ok). I have removed both t'stats and run water thru the flush connection. Water pours from both openings. Started engine with ears on lower unit and ran for less than a minuite and water only comes from left (facing from ground at rear) t'stat opening. Water comes just to the bottom of right side t'stat opening but does not run out. Sensor is not shorted or grounded, so wiring is not the problem. Still goes off at plane speed "sometimes". Have run engine for hours at 3200 rpm with no discoloration of head, fouling of plugs, etc. Have I checked the engine properly or am I missing something? Since the heads are offset (left lower than right), I assume this is why water favors the left side when running with t'stats out? I am by no means an xpert. Please help! "