We had just left Kingston Marina and were motoring east past the scenic Kingston waterfront to begin the trip back to Toronto. I headed down into the boat for some reason (stereo? chart? sunglasses?) when I heard a very faint high-pitched whine for a couple of seconds. I dismissed the noise but immediately began to smell something burning.
As every sailor soon learns, ignore unusual sounds, smells, or vibrations on a boat at your peril. If the noise didn’t trigger a response in me, the smell certainly got me busy.
I lifted the step and peeked into the engine compartment and didn’t see anything amiss – no flames, no billowing smoke. I took a second look and realized that the alternator wasn’t turning but the belt wasn’t broken. Alt seizure? I immediately shut the engine down to take stock of what was happening. It turns out the belt was toast, literally. It was crisp, hard and smoking. It was so worn out that it wouldn’t turn or flex.
I think the noise was the alt spinning down.
I did a quick replacement as we slowly drifted towards the rocky shore, past a few sailing dinghy’s and stand up paddlers. I put on a Genuine Yanmar 25132-003700 (old part no# 128670-77350). We were back up running in 5 min, I think Rufus was impressed.