MarkD
Member
Boat is 1990 Sea Ray with 7.5kw Quicksilver Generator.
This weekend I was on the hook and using the genny. Running about 1.5 hours when it suddenly stalled/shut down. At the time I had been running the forward air conditioning, water heater, charger, fridge etc. Basically a decent load on the unit. I immediately checked the sea water inlet, coolant level (it has an exchanger with antifreeze). All seemed ok. I pulled the front cover that exposes the carb and governor to see more.... I did find that the V-belt that attaches to the right side of the genny (when facing the front) linking the governor, sea water pump and (I think) stator, was shredded. The V-belt itself had 1/3 of the teeth missing but was still in tact and didnt break in half.
I used an emergency belt that I had to get things up and running again and restarted. The genny fired immediately up, but started to quickly over rev. I shut down again and looked around for more problems. A friend gave me a hand and we re-started and manually held back the governor at a point that it wouldnt over-rev the engine and I was again pumping water as usual. When he let go, the engine slowly started to rev up more and more. I checked the electrical panel and it showed something like 20 VOLTS. Not normal! We shut it back down and that was all for the day. My guess is that there must be some voltage regulator somewhere that interfaces with the governor telling it to rev up or slow down, depending on load. Since the voltage is low, maybe the governor is just doing its job and reving the engine up???
Any input as to what this could be and how to fix would be appreciated.
This weekend I was on the hook and using the genny. Running about 1.5 hours when it suddenly stalled/shut down. At the time I had been running the forward air conditioning, water heater, charger, fridge etc. Basically a decent load on the unit. I immediately checked the sea water inlet, coolant level (it has an exchanger with antifreeze). All seemed ok. I pulled the front cover that exposes the carb and governor to see more.... I did find that the V-belt that attaches to the right side of the genny (when facing the front) linking the governor, sea water pump and (I think) stator, was shredded. The V-belt itself had 1/3 of the teeth missing but was still in tact and didnt break in half.
I used an emergency belt that I had to get things up and running again and restarted. The genny fired immediately up, but started to quickly over rev. I shut down again and looked around for more problems. A friend gave me a hand and we re-started and manually held back the governor at a point that it wouldnt over-rev the engine and I was again pumping water as usual. When he let go, the engine slowly started to rev up more and more. I checked the electrical panel and it showed something like 20 VOLTS. Not normal! We shut it back down and that was all for the day. My guess is that there must be some voltage regulator somewhere that interfaces with the governor telling it to rev up or slow down, depending on load. Since the voltage is low, maybe the governor is just doing its job and reving the engine up???
Any input as to what this could be and how to fix would be appreciated.