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Old 08-18-2018, 02:23 PM   #7
WHN
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Join Date: Mar 2017
Location: Connecticut Shoreline
Posts: 1,824
Default Re: Temperature Rises after shutdown

Quote:
Originally Posted by Baypac View Post
The truck was set up for touring and I have two thermometers..a motometer on the radiator cap and a temperature probe in the gooseneck. Both are pretty close on the temperature reading. I will leave the water level as is and see if the puking stops.

Thanks,
Once the engine is shut down, the heat generator is off. Hot spots around the block could cause some increase but the continued syphon effect should take care of most built up heat.

If your running 180 degree thermostats, they might not be fully open until 200 degrees. Water boils at sea level at 212 degrees. The higher above sea level you are, the lower the boiling point of water. The higher your temperature goes the more chance of boiling. Boiling water (now a vapor) in your block will not cool your engine. You need a fluid. Straight water cools better than anti-freeze.

Boiling water within your engine block could also cause oil flash on your cylinder walls and engine failure.
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