Quote:
Originally Posted by sastanley
200°F is not too hot, but you are running out of margin much past that..most RWC'd motors are 150-170°F.
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200 is WAY too hot for a RWC engine. Anything past 140 and you get salt and mineral plating out at an increasing rate.
My current engine might maybe hit 140 if run hard for a long time in 85 degree water.
My old engine would start the year at 160-170 and get hotter every week it seemed. When it hit 200 or so I would acid-flush it and it would mostly go back to 160 until the corrosion got too bad one year and that was the end of it.