I have a Westerbeke 70 hp diesel that should be running between 170 and 190 degrees but instead is only getting up to 150 degrees. What would cause a diesel to run cool? I changed the thermostat (operating temperature is 180), I checked the coolant level and even checked to make sure that the temperature gauge was working properly. No problems with any of them.
What are the consequenses of a cool engine? More
fuel being consumed?
I GOT AN ANSWER TO MY QUESTION FROM THE MECHANIC THAT I HIRED. THE WESTERBEKE 70 HAS A FLOWCONTROLLER AT THE END OF THE MANIFOLD. THE FLOWCONTROLLER HAD GONE BAD AND WASN'T ROUTING THE COOLANT PROPERLY. ONE SIDE OF THE MANIFOLD WAS RUNNING AT 175, THE OTHER 140, ALL BECAUSE OF THE FLOW CONTROLLER, WHICH THE WESTERBEKE DEALER SAID RARELY POSES PROBLEMS.
THANKS FOR EVERYBODYS HELP AND SUGGESTIONS. IT'S GREAT TO HAVE YOU ALL TO RUN THINGS PAST.