OK, I will look into it a little further. There was a lot of corrosion inside of the thermostat housing. I may need to really clean the sensor and try that direction. Thanks again
Ok went to Oreilly Auto Parts and bought IR temp gun. Took boat out and ran her for a good full hour and still running right at 169 - 170 on gauge. I shot the top of the thermostat housing several times and it was around 144 to 145 every time. I shot the manifold on top of the engine and it...
1995 Sea Ray 220 open bow with Mercruiser 5.7 carb Alpha 1 Gen II / 200 original hours in fresh water boat that is new to me this season.
> Test drive and 1st trip out on lake were pretty short trips and boat operated as should. I did not pay a lot of attention to temp, but I recall it...
I just thought it was weird that they they offered me either and said that Mercury said I could use either. Is there any advantage/ disadvantages to running 20 degrees hotter?
Well, I replaced the thermostat but I did not clean out the housing very well as I was in a pinch. There was lots of corrosion down in there. I am an open cooling system. I will take the housing back off and see if I can clean it out a little better. I did notice lots of corroded pieces of...
I replaced the Thermostat but I did not clean out the housing very well. I was very corroded and had lots of gunk down in there. I will pull it back off as I still had the same problem after installing the new thermostat. It wants to run at about 169 degrees and I currently have a 142...
Thanks for the direction. They did provide me with an invoice, they charged the seller $454 for the install of the water impeller and $199 for the overall mechanical / safety inspection. Would the thermostat cause this? By looking at the bolts, it has never been replaced. This is a fresh...
1995 Searay 220 Mercruiser 5.7 Alpha 1 ( only 200hrs ). 2nd time out on the water and boat has started to overheat at idle. As soon as you start to up the RPM -it will cool right off and runs fine. As soon as you start to idle, the temp will slowly start to overheat. The boat had set for two...
