DLauze 0 Report post Posted May 19, 2022 My 98 276 with twin 4.3's Port motor runs around 140 all the time, going slow or at speed. Starboard motor gets hot when running slow , around 200, cools down at speed. I put a new 160 thermostat in it and it still get's hot. Impeller in the raw water pump is good. Any Ideas as to why or a fix? Thinking about just taking the thermostat out and see how it does, pro's and Con's Thanks for the input Share this post Link to post Share on other sites
