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Go Back   SailNet Community > On Board > Gear & Maintenance > Engines > Diesel
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Old 05-28-2011
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Exhaust Leak Question...

I have an Albin AD21 Diesel engine in my Coronado 35. When we took her out on her maiden voyage. I accidently forgot to open the fresh water intake, so needless to say the engine got up to 210 degrees quickly. This caused a multitude of issues. The fresh water impeller had to be replaced and the transmission needed to worked on. The issue I am having now is that we have a small exhaust leak. I have changed the exhaust outlet gasket and I still have a small leak. It is less than before, but still there. Is there any methods to check for an exhaust leak? I was thinking using the stuff you check natural gas lines, but is there anything else?

Thanks in advance..
T
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Old 05-29-2011
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Soapy warm water might show up a slight leak when the engine starts before everything gets too hot.
Just wondering how you know you have an exhaust leak if you can,t detect the source?
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Old 05-29-2011
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Lucky you didn't do any major engine damage! Strange you needed transmission work. One trick to avoid this in the future is to hang the key on the engine seacock. That will insure you open it. And get in the habit of looking at the exhaust right after startup to make sure water is coming out with the exhaust gas.

i assume you are getting an exhaust smell in the cabin. Could just be oil vaporizing off the engine after the work. Just keep looking.
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Old 05-29-2011
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Centaur, yeah thats how I found the first leak. I left the engine running for 20mins with everything shut. Then went back in and smelled exhaust.

JimsCal, the engine and transmission use the same oil from an oil pan, I think when it overheated the tranny was affected. It was an easy fix, but a pain in arse to apply. lol. I have placed a permanent sign above the ignition "Check Fresh Water Ball Valve before Starting" haha.

I didn't think about the engine buring off excess oil and crap. I check if any oil or crap is on the engine and make sure its clean. Then run again to burn the rest off. Then check again.

Thanks both..
T
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Old 05-30-2011
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Update,

Went down to the boat and ran the engine for almost a hour. I made sure that there was no excess oil or water in the hull. I also closed all the engine compartments and when I came back, no excess fumes in cabin. When I open the engine compartment back up I did smell a little burning oil, but nothing major. I hope I have nip this in the bud, but for now it looks like the issue has been resolved.

Thanks again,
T
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Old 05-30-2011
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Try this: for the next while (maybe forever) hang the engine key ON the water intake valve.....
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Old 05-30-2011
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Quote:
Originally Posted by Faster View Post
Try this: for the next while (maybe forever) hang the engine key ON the water intake valve.....
And fit a carbon monoxide alarm in the cabin, just in case.
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Old 05-30-2011
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Already Purchased and mounted today. Thanks again all..
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Old 05-31-2011
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Update.. Took it out this weekend and no exhaust leak. There is exhaust smell, we need to clean on the linen and bedding in the cabin because they stink.. lol

Thanks again,
TK
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