First post and long time viewer.
Always seemed to find the answers on prior thread. I have been trouble shooting an overheating problem on my OMC Cobra.
I replaced raw water pump....needed it, engine driven pump, checked flow to the raw water pump which was good and back from the engine out to the pump also good.
I have good flow to the exhaust manifolds and see good water flow leaving the exhaust bellows.
I pulled the Thermostat housing and am ready to replace the thermostat.
HERES THE QUESTION. While inspecting the housing I noticed that in the raw water inlet passage....while looking in the large water port... below the thermostat is a hole.
Is there supposed to be a bypass inlet to the engine below the thermostat or has my housing rusted out?
Always seemed to find the answers on prior thread. I have been trouble shooting an overheating problem on my OMC Cobra.
I replaced raw water pump....needed it, engine driven pump, checked flow to the raw water pump which was good and back from the engine out to the pump also good.
I have good flow to the exhaust manifolds and see good water flow leaving the exhaust bellows.
I pulled the Thermostat housing and am ready to replace the thermostat.
HERES THE QUESTION. While inspecting the housing I noticed that in the raw water inlet passage....while looking in the large water port... below the thermostat is a hole.
Is there supposed to be a bypass inlet to the engine below the thermostat or has my housing rusted out?