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Old 03-13-2008, 01:00 PM
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Tail pipe moisture

Hi All.
Well I am still dickering around with this "crate engine" from hell. This is my third engine assy. from an ebay purchase. alum headed 383. The supplier has been good about replacement thus far. The new issue if it is one? How much tailpipe moisture is acceptable. after ten minutes of idle I still have moisture on the ground on the passenger side only. enough to make a wet coating on the floor below the exhaust tip. No water in the oil and no oil in the water. Where else can this come from. I am paying extra attention to this issue due to the fact both prior blocks had machining errors that created first a compression leak into the cooling system then a crank clearancing issue where a water journal was breached thus water in the oil, LOT's of water. Engine runs good, I just want to make sure I m not being to picky at this point or do I have another issue. I am i so CA so weather is not an issue. it is very dry where I am at. Any professional comments would be appreciated.

Thanks all

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Old 03-13-2008, 01:07 PM
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Quote:
Originally Posted by sanman
Hi All.
Well I am still dickering around with this "crate engine" from hell. This is my third engine assy. from an ebay purchase. alum headed 383. The supplier has been good about replacement thus far. The new issue if it is one? How much tailpipe moisture is acceptable. after ten minutes of idle I still have moisture on the ground on the passenger side only. enough to make a wet coating on the floor below the exhaust tip. No water in the oil and no oil in the water. Where else can this come from. I am paying extra attention to this issue due to the fact both prior blocks had machining errors that created first a compression leak into the cooling system then a crank clearancing issue where a water journal was breached thus water in the oil, LOT's of water. Engine runs good, I just want to make sure I m not being to picky at this point or do I have another issue. I am i so CA so weather is not an issue. it is very dry where I am at. Any professional comments would be appreciated.

Thanks all
ive heard that because gas is so high, that the water content is more than what it used to be to keep costs down for cheaper gas...this being the case, it might exsplain what your goin through.although i cant figure out why its only happening on 1 side?
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Old 03-13-2008, 01:08 PM
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You are burning hydrocarbons (hydrogen and carbon) so the combustion products will be CO2 and water. When the exhaust systems are cold the combustion water vapor condenses and water can literally pour out the tail pipe. However within several minutes things should get hot and the water will exit as a gas. You should be able to distinguish combustion water from a water leak by smelling the residue for signs of anti-freeze from the cooling system in the latter. Also the 'good' water rate should stop as the system heats up.
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Old 03-13-2008, 01:13 PM
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Quote:
Originally Posted by backyard71nova
ive heard that because gas is so high, that the water content is more than what it used to be to keep costs down for cheaper gas...this being the case, it might exsplain what your goin through.although i cant figure out why its only happening on 1 side?
Urban legend. Water is not added to gasoline. Half the byproduct of gasoline combustion is pure water which explains the water running out of cold tail pipes. The other half of combustion gas exiting your tail pipe is carbon dioxide (The same stuff you breath out every breath. And the same stuff Algore says is destroying the planet. Maybe you should just die to help out Al?).
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Old 03-13-2008, 01:22 PM
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Hey sanman, who did you get that motor from?
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Old 03-13-2008, 01:35 PM
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willys 36 is exactly correct. HC+O2=CO2+H2O. cold pipes condense H20 and it drips out of the exhaust.

putting more water in the gas??? what is that guy talking about???
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Old 03-13-2008, 02:24 PM
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Last time I checked oil and gas didn't mix very well. You do live in California which is pretty humid if you are near the ocean.

Last edited by RippinRon; 03-13-2008 at 04:24 PM.
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Old 03-13-2008, 02:26 PM
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I am interested in who you got the engines from as well...Some of those budget engine deals look appealing on ebay but not if you have to pay for shipping 3 times.
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Old 03-13-2008, 02:30 PM
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My check for a water leak into the cylinders take the plugs out and (WHILE COLD!) Taste the electrodes on the plugs. If its sweet theres your leak!
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Old 03-13-2008, 02:36 PM
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I would like to know where you got the engine from also to make sure I don't buy one. As far as the water goes you had a couple of very intelligent answers. As far as one side goes,is the car parked in such a way that one side would get more sun and cause a difference in start up temp? this could cause more water on one side.
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Old 03-13-2008, 02:36 PM
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Quote:
Originally Posted by RippinRon
Last time I checked water and gas didn't mix very well. You do live in California which is pretty humid if you are near the ocean.
i fixed it for ya---->
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Old 03-13-2008, 02:40 PM
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Quote:
Originally Posted by speedydeedy
I would like to know where you got the engine from also to make sure I don't buy one. As far as the water goes you had a couple of very intelligent answers. As far as one side goes,is the car parked in such a way that one side would get more sun and cause a difference in start up temp? this could cause more water on one side.
hey speedy, he probably has a heat riser on one of the exhaust manifolds, thus exhaust out of one pipe until the motor warms up.
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Old 03-13-2008, 02:42 PM
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Quote:
Originally Posted by willys36@aol.com
Urban legend. Water is not added to gasoline. Half the byproduct of gasoline combustion is pure water which explains the water running out of cold tail pipes. The other half of combustion gas exiting your tail pipe is carbon dioxide (The same stuff you breath out every breath. And the same stuff Algore says is destroying the planet. Maybe you should just die to help out Al?).
sorry man, just what i heard.
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Old 03-13-2008, 02:44 PM
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Quote:
Originally Posted by techron
willys 36 is exactly correct. HC+O2=CO2+H2O. cold pipes condense H20 and it drips out of the exhaust.

putting more water in the gas??? what is that guy talking about???
just something i heard man, just trying to help
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Old 03-13-2008, 03:57 PM
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Originally Posted by techron
i fixed it for ya---->
huh? fixed what?
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