I'm still getting used to the cleaned out engine.
My raw water cooled used to run at around 180-190 with frequent spikes, back off the throttle and it would cool right down. Now it stays pretty solid at 155-165 except a MAJOR spike a week ago. I limped the last .5 mile of a 30 mile delivery (wow was that lucky!!) and when I went back to troubleshoot it was fine. I figure after all the cleaning I did last winter a piece of scale wedged somewhere unfortunate (manifold exit?) and settled again when it was shut down for a while. I'll continue to watch the gauge - and for steamy exhaust.
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