Jim - Now that I think of it, you're right of course. I was thinking of dispelling the common misconception that all the water that drips out of the tailpipe is just from the water that may condense out of the air onto the inner walls of the exhaust system when the engine is shut off. Though there is likely some of that happening as well, most of the water comes from the burning fuel. As far as cracks go, many years ago when I worked as an automotive machinist, I always magnafluxed each head I repaired right after pulling it out of the hot tank and cleaning it up. If I had a block with any evidence of cracking I would have checked it out as well, at least around the water jacket areas.
Barry -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Jim Cathey Sent: Friday, January 06, 2006 8:43 PM To: Mercedes Discussion List Subject: Re: [MBZ] OT: Genset > Actually there is quite a bit of water vapor that comes out Roughly a gallon for every gallon of fuel that goes in, I'm told. Something tells me that's short, since octane is C8H18. Propane is C3H8. I'm no chemist, but them thar hydrogens ought to blow out into 9 gallons of water per gallon of gasoline, or four per gallon for propane. Bad chemistry, but still gives you a rough idea of what comes out. > of the tailpipe in most any engine. The water that you see dripping > out of your tailpipe each morning is not from condensation, it is > water vapor, a by Technically, it _is_ condensation. Condensed water vapor from the combustion process, as opposed to condensed water vapor that was already in the air. Once the engine parts all warm up, it doesn't condense anymore. I'm pronouncing my engine fixed, unless it hits me in the face with a dead fish. I'm working on the regulator now. -- Jim