The engine is not heating up to prescribed temp.
The Temperature sending unit is a sensor that is surface mounted on the engine block screwed into bracket. NOT screwed into the engine block-very inaccurate way of measuring temperature-was told by Bomb that this is how it is done on the new engines and to check the water pressure gauge and idiot lights on master gauge.
This year I had the water pump replaced by my marina (non dealer), I do this every two years. water pressure is 89-10lbs at idle, but the temp of the at the thermostat housings was approx. 70 F ( I could put my hand on it).
What I have done: I dissasemble the pressure relief valve and rebuilt it-new spring, diaphram and rubbers seals, removed both thermostats, checked them in hot water and both open at the prescribed temp of 135-140-F.
Cleaned out the thermostat areas and reinstalled the thermostats.
I then closed off the hoses leading to the pressure relief valve (I removed each hose and plugged them. I ran the engine for 10 mins. The area near the thermostats warmed a little to touch but no where near 135 F.
I reconnected the pressure relief valve and ran the engine for 15 mins. The engine block did not get hot just warm to the touch again.
There was no debis in the cooling system and it was very clean (I freshwater clean afer each trip out).
HELP
The Temperature sending unit is a sensor that is surface mounted on the engine block screwed into bracket. NOT screwed into the engine block-very inaccurate way of measuring temperature-was told by Bomb that this is how it is done on the new engines and to check the water pressure gauge and idiot lights on master gauge.
This year I had the water pump replaced by my marina (non dealer), I do this every two years. water pressure is 89-10lbs at idle, but the temp of the at the thermostat housings was approx. 70 F ( I could put my hand on it).
What I have done: I dissasemble the pressure relief valve and rebuilt it-new spring, diaphram and rubbers seals, removed both thermostats, checked them in hot water and both open at the prescribed temp of 135-140-F.
Cleaned out the thermostat areas and reinstalled the thermostats.
I then closed off the hoses leading to the pressure relief valve (I removed each hose and plugged them. I ran the engine for 10 mins. The area near the thermostats warmed a little to touch but no where near 135 F.
I reconnected the pressure relief valve and ran the engine for 15 mins. The engine block did not get hot just warm to the touch again.
There was no debis in the cooling system and it was very clean (I freshwater clean afer each trip out).
HELP