I am thrilled to find this forum- I just got my first wake boat, it's a 2004 21i. (5.7 liter Marine Power). Been dealing with a mystery overheating issue, impeller has been replaced, had a mechanic backflush the raw water coolant system. The overheat is intermittent, will run the boat for several hours at normal operating temperature, then at idle it will overheat. I'm thinking to replace the thermostat next, any other recommendations?
I found this thread while shopping for the 143 degree thermostat recommended in the marine power original owners manual, I see I should replace it with the 160 degree stat. Anyone know where I can find this part by chance?
I found this thread while shopping for the 143 degree thermostat recommended in the marine power original owners manual, I see I should replace it with the 160 degree stat. Anyone know where I can find this part by chance?