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The weird thing is at 2000 rpm’s temp went to 169. I backed it off to idle and it dropped to 165 and then raised all the way up to 171 while...

Changed the thermostat, checked the idler pulley and the raw water impeller. I thought I had the impeller in backwards at first and changed it...

I dug out the old flax packing. There were two pieces one was destroyed and in tatters. The other was in decent shape, but I think I over tightened...

I had a guy in the boat tonight recording sound. When I shift from neutral it makes a sound. He said it’s coming from the back and thinks it’s the...

Checked the shaft packing, all good. I recall in the past overtightening the nut and it zinged on the shaft. I only hand tighten now to a slow drip...

I check the impeller a few times a year. All the 'fingers' are there and it seems to be pumping well. Temp stays around 160. Packing seal I adjusted...

You figure you run these engines at 3200rpm or higher for hours at a time. In the truck, at cruise speed, the transmission would drop to overdrive...

Got it. Thanks. I think I saw your post on the idler pulley and replaced 2 of 3 wheels last year. I did not realize there was a 3rd until I got...

It's the same 160* thermostat for a 6.2 ford 150 raptor truck. There is not a marine version. Also, check your idler pulley. Mine locked up and...

Your fill sensors need reset and/or calibrated. You are over filling and the sensors are not shutting them off. My 2015 didn't have these and you...

If it is random and happens at any engine condition, then most likely not engine related. When did you last replace your raw water impeller? Hard...

Do you happen to have the part number for the thermostat you bought? Mine got to 215 today and threw a code “ETC higher than expected stage 1”. I...

Try this. Shut it down and turn off the battery switch and let sit for 10 minutes. Turn battery switch to 1 or 2 not both. (My 2015 I would...