After being out of the water for seven weeks for its bottom job, Nirvana’s packing gland had dried out a bit, and it was dripping too much. The packing gland keeps the propeller shaft cool while it is turning. So dripping too much is better than dripping too little. But, dripping too much means that we are constantly sinking a little bit, so we didn’t want to let it go too long. 🙂 We have hired out the engine maintenance on the boat in the past, but decided to do this ourselves. Finding the right tool for the job is important. These wrenches from CatalinaDirect fit the nuts exactly, are narrow enough to turn the lock nut without turning the gland nut, and have stubby handles for the cramped space in the bilge by the propeller shaft. Perfect! We tested the temperature on the shaft after motoring for a while with an infrared thermometer. Looks like a good fix.
We were on a roll, and kept going and checked the impeller on the sea water pump, which pumps water to cool the diesel engine. We’d let it go too long and one of the blades had broken off. Now to find it…
Debris in the cooling system is not good, it blocks the hoses to, and the tubes inside the heat-exchanger, which can lead to overheating. Plan A: use a shop vac to try to suck the broken vane out of the hose between the water pump and the heat-exchanger. Plan B: open the inlet side of the heat-exchanger, which requires removing the alternator. Thankfully, Plan A worked. The entire blade was retrieved. After a new impeller, o-ring, and lubricant, it was all set to go.
We fired up the engine and left the dock for a 30 minute test run to make sure things looked good. And they did.
Then we decided to sail upriver 30 miles to anchor overnight and watch for some Perseid meteors a little farther away from the city lights. We saw a dozen or so.
We had a great sail up and back on Tuesday and Wednesday. And, wow, is Nirvana in top shape with her new bottom job. We hit 7.7 knots more than once.
Wing-on-wing is so pretty….
I love this boat. ❤
One thought on “Work and play.”
Evidence-based maintenance for boat life. I love hearing your stories.