I HAVE AN 89 BAYLINER 125 HP. L-DRIVE. I HAVE JUST REBUILT THE LOWER UNIT AND REPLACED THE WATER PUMP LAST YEAR. I HAVE ALSO REMOVED THE THERMOSTAT AND RUNNING WITHOUT ONE KNOW. I RUN GREAT AT WIDE OPEN FOR 15 MIN. BEFORE BUZZER GOES OFF. USUALY I CAN RUN ALL DAY AND POWER HEAD IS COOL TO THE TOUCH. IF I RUN BOAT WITH EXIT HOSE FROM THE BLOCK OFF IT PUMPS WATER LIKE A GARDEN HOSE (FULL BLAST.) I THINK AT SOME POINT WHILE I AM RUNNING IT STOPS. AND LEAVES THE BLOCK DRY. I ALSO KEEP THE BOAT IN THE WATER SO IT IS HARD TO WORK ON THE L-DRIVE. ANYONE HAVE ANY GOOD NEWS!
