We have not posted her for a few weeks. Just like life in the “Real” world, time often moves quickly, even when moving slowly. Things that we want to do take precidence over things that we should do, and so, the blog goes stale.
We have had a bit of excitement aboard Alchemy, while on the mooring at Shroud Cay, about a week ago. I (Chris) woke up at about 2am, to the smell of burning plastic. I must have been dreaming before awakening, as I thought it was something external to the boat at first. But as I awakened more completely, I knew it was coming from aboard Alchemy. I got out of bed, and first checked the Ampere meter, which was showing more amps being drawn than it should have been in the middle of the night. I got a flashlight out, and when I turned that on, I could see a light mist of smoke in the cabin. Shit.
At that time, Gretchen woke up, and we went into emergency mode. I had already turned off the power to the boat, we opened up the hatches completely, and I started looking for the source of the smell and smoke.
Meanwhile, Gretchen got the cat’s carrier out, put them into it, and got them out into the dingy. She then left me (in a smoldering boat, she joked later) and took them over to Cupcake for safekeeping. I asked her later how she got them over the lifelines and into the boat, and she told me I just did it – had to.
The smell was strong, and my stomach started hurting very badly, so I would spend some time tearing through compartments, and then going out the companionway to get some fresh air. My thoughts were dark, thinking we may loose the boat, even though the smoke was very thin, and no open flames were found. We emptied the aft cabin, and then checked the batteries. No problems there. The smell was coming from the aft portion of the boat, no doubt, but where? It was quite windy, so the wind generator was turning briskly. I turned the stop switch to off, tied up the blades, and then turn the switch to disconnect. The smoke was getting thinner, the smell less pervasive. After a time, I was convinced that it was something to do with the wind generator, as it had not been that windy for quite some time, and we figured that some of the wiring, somewhere, had worn through enough to short out.
The cabin was livable once more, but the mystery not solved. We retrieved the cats, I got some sleep, Gretchen declared that she could not, so when stayed up. In retrospect, I would not be surprised that I breathed a bit of Carbon Monoxide, I did feel VERY tired, and my stomach was very painful.
In the morning, we started to trace the wind gen wires that were not accessible or easily seen at night, and found no damage. The engine compartment continued to smell badly, so Gretchen was spending some time looking more closely in there. She found some plastic wire loom that was partially melted, and asked me to look at it. It was then that I got a good look with the help of daylight and a flashlight at the area aft of the alternator, there was definitely something going on there. I could see that the cable going from the alternator to the batteries was charred for the first five inches out of the alternator. Bingo. So I disconnected that on the battery end, and then later, we pulled the alternator out, as it is VERY tight on that side of the engine, and it is almost impossible to see the back of the engine.
The back of the alternator has a plastic cover, and it was melted badly where the cable had been. There were also some smaller wires that had corroded connectors. More troubling was the fact that it was wet all over there, it was clear that water was the culprit, and had caused a short. I pulled the spare alternator that came with the boat. It was double bagged, and I had never gotten around to looking at it. As luck would have it, or more precisely because of the forethought of Tom, the previous owner, it was an identical alternator, so it would be a plug and play swap, more or less. I cut off the cancerous burned cable, with the intention of reusing that cable, but Tom aboard Mahalo has a slightly longer piece in his spares, with one cable lug already attached ? we soldered another end on, and were back in business. Well, except it looked like the drip was coming either from the head gasket, or the head itself. Not good. Not good at all. There was a leak back there. So we started the engine, and the alternator was running fine, and the leak was just visible dripping right aft of it. So we mostly sailed from Shroud to Warderick Cay, the Exuma Park HQ, only using the motor at the end of the run to get into the narrow mooring field at the park. At the park, Bruce, a single hander aboard Zingara who volunteers at the park, came over and help diagnose. He has the idential engine, andin his boat, and even in his previous boat. He asked a bunch of questions, and based on my answers, he thought it was unlikely that it was a cracked head or leaking gasket. Whew. We narrowed it down to either the seawater pipe leading from the heat exchanger (cools the engine like a radiator) to the exhaust manifold, or the water temperature sensor. We were on a mooring ball, and knew we needed to enjoy what the park had to offer ? hiking, great views, and some very good snorkeling. So we did just that, and put off the exploratory surgery needed to make a final diagnosis. I was dreading the work, because I thought we would need to remove the alternator again, which also meant moving the fresh water pump as well. And empting the entire lazarette, which holds a bunch of sails, cleaning supplies, boat supplies, etc.
As it turned out, we were able to ID the leak, it WAS the seawater pipe ? the water was salty, and if it was the sensor, it would have been fresh. We had some spare pipes, but I did not know if we had THAT spare pipe. I dug them out (finding just about anything on a boat involves digging) and WAHOO, we had a spare, lightly used one. The swap went much faster and easier that I thought, I did it from the lazerette, and with the help of Gretchen, I was able to get it done in about one and a half hours. And the leak was gone!!!
This was one of those times when it is clear that our fellow cruisers are some amazingly helpful, friendly people. I got advice both from other boats via the Cruisers Net on the HF radio, boats that were near and far; specific help from George on Sunpot Baby and Bruce aboard Zingara, Tom on Mahalo for the cable, and Doug and Betts aboard Arwin Evenstar, still back in New Bern. They sold us, cheaply I might add, the pipes for the engine before we even left.
Whew, that was long, more fun, stuff will follow, I promise.