What is ......?

Question

the liqued that falls out of the exhaust pipe of a car?
Is it flammeble?

Answer 1

Well, It basiclly Clean rich water from burning the the fuel system.

Most mufflers will have a small hole at the bottom to allow water (normal moisture from condensation) to drip out. Get under the vehicle and look closer at the muffler and see if there is a small hole. If you had a head gasket leak I would suspect there to be a large cloud of white smoke coming from the tailpipe, an engine miss (due to water in a cylinder) and an over heating condition.

With the engine cold, take the cap off the radiator and see if it’s low on coolant. If it IS low, I would recommend you take the car to the mechanic for a cooling system pressure test, which can tell you if you have a head gasket or internal engine damage.

Some black oily deposits are probably going to be normal out the tailpipe especially if you take short trips and don’t allow the engine to fully heat up and the exhaust system to fully heat up and burn off the exhaust properly. Sometimes a nice long high RPM drive on the freeway can do wonders for engines that normally take short trips and don’t really get to stretch their legs on open road.



Five Gas Exhaust Analysis Theory
Excerpt:
Introduction:

"When we do exhaust analysis, we are being a detective. We look at what came out of the exhaust and figure out what could have happened before to create those emissions. What happened in the combustion chamber, or before the combustion chamber, to create these results?

We can use clues and patterns of exhaust readings to figure out if we have a problem in one of the following areas:

· Air/Fuel Ratio
· Combustion
· Ignition
· Emission Control Device

Then we know where to start our diagnosis with visual and functional tests.

Good Combustion:

Let's start by reviewing good combustion. The idea is to properly burn up all the gasoline and not have any "leftovers". Into the combustion chamber we put gasoline, symbolized by 'HC' for hydrocarbons. These are combinations of hydrogen and carbon atoms, organic matter from old dinosaurs maybe? We also add lots of air, which contains oxygen, symbolized by 'O2'. (Oxygen atoms feel more comfortable going around in pairs.) Normal air is about 20.7% oxygen, and if your shop smog machine doesn't show about this when reading the air inside your shop, you could have a bad oxygen sensor in your smog machine, or a serious problem with the air in your shop, or the planet has a problem... Back to combustion. The air we add to the combustion chamber is mainly nitrogen, about 78%. (No, that's not nitrous, but related.) This doesn't burn, it just goes along for the ride and expands with the heat, helping to push down the piston.

Coming out of the combustion chamber we have carbon dioxide, water and nitrogen. The carbon dioxide is symbolized CO2. (One carbon atom combined with two oxygen atoms) It's good, in that plants like it and it doesn't hurt us, but too much is blamed for global warming. The water is symbolized by H2O, two hydrogen atoms combined with one oxygen atom. Did you realize that for every gallon of gas we burn, the tailpipe puts out about about a gallon of water? And then good combustion also puts out all the nitrogen that came in.

Good combustion is simply put this way: HC + O2 + N2 = H2O + CO2 + N2.

I leave out the numbers which show proportions. Most of you know we want an ideal mixture of 14.7 pounds of air to ..."



To get the rest of this article, you may place your order now.

The article contains these sections:

Introduction
Good Combustion

Bad Combustion

Smog Machine Measurements

HC, Hydrocarbons

CO, Carbon Monoxide

CO2, Carbon Dioxide

O2, Oxygen

NOx, Oxides of Nitrogen

Review

Five Gas Chart



Back to top



Exhaust Gas Analysis Examples
Excerpt:
"This first set of examples shows four gas readings (HC, CO, CO2 and O2) during the two speed idle test commonly run on the BAR 90 machine in a basic smog test area. Some tests were only run at the low speed idle to save the catalytic converter. These are real readings from real cars.


--------------------------------------------------------------------------------
Normal clean emissions
This is a '91 Mitsubishi Galant, 2.0 fuel injected, with no air injection. These are the clean emissions of a good system and great catalytic converter.

Idle Cruise
HC 1 ppm 5 ppm
CO 0.04 % 0.01 %
CO2 15.5 % 15.4 %
O2 0.1 % 0.1 %


--------------------------------------------------------------------------------
Clean emissions with air injection
This '81 Plymouth Reliant 2.2L has air injection. Notice the high O2 (7.4 - 7.8 %) but the CO2 is lower (9.6 - 9.4 %) The added air (which has lots of O2) has diluted the CO2.

Idle Cruise
HC 28 ppm 30 ppm
CO 0.01 % 0.04 %
CO2 9.6 % 9.3 %
O2 7.4 % 7.8 %


--------------------------------------------------------------------------------

Lean Misfire
This '78 Volvo with fuel injection has a massive intake air leak. In this lean misfire HC is at the max. The lean air/fuel ratio makes it hard to burn all ..."

Idle
HC 2000 ppm
CO 0.63 %
CO2 9.5 %
O2 7.4 %

Answer 2

Astronomy is a natural science like physics (in fact one branch of physics is astrophysics, which is also a branch of astronomy) although historically astronomy was a branch of mathematics dealing with calculating the positions of the stars and planets and Sun and Moon. It has become a catch all for all scientific disciplines pertaining to the stars, planets, nebulae, comets etc. Astronomy tends to be more based on observation than theory. The theory of how everything in the universe works is called cosmology. Because of the highly observational bias in astronomy some theoreticians have derisively called astronomy, "the scientific study of telescopes", alluding to the observation that astronomers often spend more time talking about their equipment than their observations. Astrology is more mythology and folklore, the superstition that the movement of the planets along the zodiac plane influences events and people on Earth. Astrology dates back to prehistoric times (such as Stonehenge) where the calculations of the Sun's positions and cultic ceremony come together, so there was a lot of religion and observation of the stars combined. Because of the successful way astrologers could successfully predict the passing of the seasons and the correct times to plant and harvest it was assumed that through more careful examination of the heavens the outcome of decisive battles and the births, important events and deaths of people could be predicted. When you look up your horoscope in the newspaper that's astrology. For hundreds or even thousands of years astronomy was the mathematical sub discipline of astrology and no doubt apprentices were taught astronomy to draw up the star charts before being taught how to interpret them. Gradually especially with the enlightenment the science and mathematics part of astronomy began to tear away from the superstitious part with Johannes Kepler being viewed as the last of the scientific astrologers and the father of modern astronomy. Today astrology is to astronomy what alchemy is to chemistry.

Answer 3

Just water, condensation. Not flammable

Answer 4

That is just normal condensation, and that means your engine is running fine. Dont worry about it, your vehicle is good when it does that.

Answer 5

I don't think so.
unless some one put gasoline in it.

regularly,is water from condensation.

Answer 6

its called water

Answer 7

ummmmmmmmm i dont think water is flammable lol

Answer 8

H2O, but i wouldnt drink it

Answer 9

it is not flamable, it is just water,unless your egr system is faulty