I wanted to give everyone an update on this… after many months of trying to trouble shoot the problem. I let the mechanics take a shot at it. They could not reproduce the problem at the shop and needed to run it on the water. After 10 minutes of use on the water, they found the problem. The whole right side of the motor was blown. Water stopped circulated on that side of the motor due to a rusty/clogged cooling port at the base of the block. The left side of the motor had the thermostat attached to it and was reading normal temperatures. Now it’s time for a new block.
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