Regal Engine Overheating

We have a new Regal, just little over a year old and warranty has expired after a year.  The boat has ran fine until just now when we were out on 4th July.  The boat ran fine then we were at approx 30-35 MPH and the engine overheated and sound went off.  Turned the boat off it started up and it was back down to 150-170.  It stayed there until we hit a speed of 30mph for less than a minute.  It overheated again.  Went to the boat store where we bought the boat and we thought it was the thermostat and the guy said no itís the impeller and we bought a new one and it did it again.  We put in neutral and run it and the temp goes down.  What could this be, could you help us?



Always put in a complete water pump kit. Most likely the plate or housing is warped and will not pump properly.




Please submit whatever questions you have to  All questions and answers selected will be displayed on this page as they come in.  Note: though all boaters are welcome, priority may be given to I.H.R. members.  Randy can not be held responsible for any advice given.  Though his information and expertise is second to none, he has no control over what you do with your boat.  It is up to you to boat safely and act responsibly, and his advice is only to be used as a guidance for your high performance boat/motor of which you are the one responsible for the risks involved.

Mark C.


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