2002 Optimax 225 (#0T482478)
Motor was starting to overheat at idle and low speeds. It's happened before about 2 years ago and it was a blown pump gasket. Took it apart and it had gasket blown out again. The bottom edge of the impeller was also melted a bit. When I replaced the base plate I noticed that the carrier had actually come up about 1/16th (guessing) of an inch or so which I assume caused the impeller damage. Tapped the carrier back down and replaced everything with the Merc 817275A5 pump kit. All seems to be good now. What could cause the carrier to come up against the bottom of the pump? Should I be looking at another possible problem?
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