Exhausting Work...

29 01 2010 Posted by Daniel

Over the past week, as many of you may be aware, I’ve been refitting the exhaust system on Aletheia. Her old system was rusting through, leaking, and was generally a big mess. So I installed a new water-lift muffler setup. Its not quite finished, but I hope to be bolting it all together today. Its been a LOT of work.

To recap: I’ve removed the old, rusted exhaust system off the back of the engine. Had a custom exhaust riser fabricated out of galvanized pipe. Found a special metal fitting for water injection from another engine that fits mine, and added that in. Fiberglassed a new mount for a much larger muffler into the bilge, and had to make it removable for access to the propeller shaft. That last bit was a big trick. I also had to thoroughly clean out the heat exchanger on the engine and put in a new thermostat. Finally, I moved a lot of wiring from the new heat zone (the old exhaust pipe has a different path than the new one, so I have to relocate some cables) and shielded them with reflective foil insulation to provide better protection than they had previously been getting.

Now that its all ready to bolt up, I’m stoked. Maybe I can fire up the engine this weekend!

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