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Date Posted: - Monday - 06/27/11 - 2:33pm
Author: Mark, AEOLUS M31
Subject: Exhaust issue
In reply to: Randall, Murre, M31 Hull #150 's message, "Engine Exhaust issue" on - Monday - 06/27/11 - 12:55pm

Hey Randall, great to hear from you, I like I'm sure a lot of fellow Mariner's have been following on your blog, GREAT writing! I'm glad to here the engine problem is external. Believe it or not on my boat the aqua lift muffler and the piping from there aft are PVC. A south african showed me his PVC "Y" muffler about 25yrs ago and it works great on the old 4.107. A short piece of exhaust hose is between the muffler and the 1 1/2 PVC pipe that runs vertically up to the under edge of the lazarette hatch. From there it turns 90* and runs the length of the opening of the hatch where it turns 90* down again. One more 90* turn to line up with the thru-hull (that as you say is just above the water line) and attaches again with a piece of exhaust hose. So 3-90* and 1-45* used to turn from the muffler up vertically.
It's worked for 25yrs, and goes without saying that it CANNOT be run dry, but I have always shut down and fixed any dry run problem immediately, impeller or stainer.
A fiberglass pipe would be better, but with your location you might consider a version of my layout.
Fair Winds Mark

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Replies:

[> Nuku Hiva -- Lawrence Killingsworth M40 Ta' Ata Ori, - Monday - 06/27/11 - 4:01pm

Sorry to hear about your engine troubles, Randall. I don't have any mechanical advice for you, but I just wanted to comment on how much I am enjoying reading your blogs from your sailing adventure. Well done and much appreciated by those of us back here on the mainland.
Back in the late 70s, Ta' Ata Ori was dismasted (main mast) on her way from Mexico to the Marquesas. She limped into Nuku Hiva, where local craftsmen helped the owner at that time to build a mast out of island wood and re-step it, using the crane from a trading steamer. I have pictures of the whole process. So, just to say, your exhaust may be goofy, but at least you made it into Nuku Hiva with all your masts.
Best of luck with the rest of your voyage and thanks for taking us along.


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