i started this new thread so nothing gets confused. Thanks to all who’ve helped so far and here is where I’m at. Port side is all good now. Bad gauge or sender so I’m looking for the square type of VDO gauges with senders, 100 to 250 degree scale. If you know where to find the old style square gauge and The big problem still exists on the starboard side. Running at 225 degrees. Here’s what’s been done: Sea strainers taken apart and cleaned. Water gushes in when sea cock opened. New hose from strainer to pump. New circulating pump. Took apart raw water pump, bronze impeller and everything looks good. New thermostats. Salt/barnacle dissolving potion pumped through heat exchanger (I have to ask mechanic if they flushed the whole engine, I’m not sure). I finally took the kids and friends out for our first ride of the season and winter storage applications are already coming out. I just went slow to a local island and sat for the day. If anyone can think of anything else that could be the problem, I might be able to salvage my depression and get the family out on our yearly Block Is. Montauk etc. I’ve spent thousands so far and still have the temp issue. The reading of 225 came from both the mechanical gauge on engine and temp laser gun. Thanks for any/all suggestions!