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      Abbreviated rules   07/28/2017

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parclan

Exhaust leak

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I have an exhaust leak somewhere and I cannot find the bloody thing! The leak began after my mechanic removed and then reinstalled the freshly rebuilt injectors. There was not a leak before that. I have since replaced the hose from the engine (Volvo Penta 2003b) to the muffler thing because it had an obvious bulge in the bottom and it was at least 25 years old. The rest of the hose from there to the transom is semi-buried behind the diesel tank and impossible to get at.

It only fills the aft cabin with toxic deadly fumes when I run the engine....

any ideas?

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A good idea would be to stay out of the aft cabin when the engine is running.  Is there a crank case evac hose the mechanic might have forgotten to hook up?

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We recently got a leak at the gasket between the exhaust manifold and the water injection elbow.  No obvious reason. Just a tired gasket.  Look at all the joints.

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Blitz, nope to the crankcase hose. I mean, the amount of exhaust is bad. We motored around the marina tonight to back her in stern first and the stink was really bad - even with the ports open and fans on. Bad! 

I know this is not a sexy topic, but help a sailor  brother out. We are (literally, if it ain't fixed) dead in the water...

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Start from the cylinder head and work your way back.  Where the access is hard to get to use mirrors or a bore scope, just got to be creative. Theres really no tricks.   As bad as it is leaking you should be able to hear or feel the leak.  Probably should change the inaccesible hose if the other one was soft.

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Wet exhaust, I presume?  Is there a bleed hose /siphon break in the line possibly plugged?  Is it a plastic or metal waterlift muffler. a s,all crack will "breathe" out a bit of exhaust, more if you are reversing and putting more "back pressure" into the muffler to through hull line. 

If it's coming from the wet side, you should see evidence using the mirror, borescope option. 

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if all else fails, soapy water in a spray bottle... douse all the hoses with the motor running. Wear a respirator or have a spotter watch from topsides to make sure you stay awake.

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