2004 288 Sunsation cooling
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2004 288 Sunsation cooling
I have a Sunsation that will not get to running temp. 525 efi merc. Rpm 4800 and water temp 150 oil temp 130. Ok we have replaced thermostat. What r the different size restrictor valves and can they be changed for different water temp
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Do you have it plugged into a scanner or are you just reading the gauge on the dash?
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Reading the gauge. But the Headers are staying ice cold. I read that mercruiser rec to plug lower water restrictors and adding a .406 restrictor valves on both upper restrictor valves. what do u think
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I believe the stock t-stat is 160, my 525s in my last boat ran about 150. The bulletin for the headers was to increase water flow through them, so they dont get too hot.
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Bo is back in the game! Was this running out on the Ohio this past week? I'm guessing the water temp is in the 40s. Even with closed cooling would the cold raw water running through the heat exchanger keep temps in a lower range than say 70 degree water?
Cooler is better than running hot for the headers but ice cold to me would be due to the cold water you're running in.
You're in the water early. I wouldn't restrict anything to bring up the temp. Once you hit LC and temps climb you'll be doing rework to take it back to where it was.
Cooler is better than running hot for the headers but ice cold to me would be due to the cold water you're running in.
You're in the water early. I wouldn't restrict anything to bring up the temp. Once you hit LC and temps climb you'll be doing rework to take it back to where it was.
Last edited by Sunny32SSR; 03-22-2016 at 09:07 AM.
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