Join Date: Jun 2009
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i was going for a sail today, ran across no wind, and decided to motor a bit more into the chesapeake to see if we culd get some wind a bit further from land. well, as i did this the wife informed me that there was smoke below. I cut out the engine, went down to investigate, and realized it was exhaust and the engine compartment was flooded with it. So, we both sat outside, and motored in spewing exhaust everywhere, but we got back in. I opened the hachs, placed a few fans around to help, and once I could breathe below, I dove in.
As far as I could tell, the exhaust flange on the engine manifold goes up and back down and has a pipe out of the top of the loop that goes back into the heat exchanger. after this T fitting, is where my problem was, the pipe that then connects this to the exhaust hose, that goes into a black round thing before it goes overboard. Well ,after the t fitting the pipe that the exhaust connects too was corroded away at the threads. it filled the boat with exhaust and warm water. the fitting was wrapped in an insulator and a fiberglass(i presume?) which was soaked through and very black. So, to a few questions, what is this thing that corroded away? I thought it was an exhaust elbow, but i am not sure if its an exhaust riser. should i replace the corroded piece or the whole thing and what should i replace it with? I don't want to spend 5k on titanium, which I saw was the thing to use to prevent this from ever happening as i dug around online to understand how screwed I am. I saw one guy who was using brass here actually. Also, the black stuff, is that exhaust only? or it is oil as well? and what is the black round thing? thanks for all the help