Effects Of Carbon Build Up

[dvldoc]

A properly tuned engine is required for optimal engine performance. Unless the vehicle is tuned to factory specifications,
catalyst and emission related problems including catalyst efficiency codes can be triggered.

Today’s tune-up no longer simply consists of replacing plugs and checking fluids. Due to tighter engine tolerances and more sophisticated controls,
additional work may need to be performed to prevent and correct emission related codes.


How Does Carbon Build–Up Affect Engine Performance?
As the engine operates, carbon deposits may form in places such as the valves, ports, pistons, head gasket and piston
rings. This carbon can interfere with normal combustion is several ways. It can alter the engines operating temperature, compression ratio, and several other important factors involved with combustion and sensor readings.

How Can Carbon Alter the Sensor Readings?
The carbon contributes to abnormal combustion in several ways, but the most dramatic effect in a modern fuel injected
engine is the “sponge effect”. As the fuel mixture in the cylinder is compressed, the carbon has a tendency to absorb
both oxygen and fuel. Once the ignition spark fires, the flame front normally spreads through the chamber, consuming the
fuel and air, however, the carbon has a tendency to extinguish the flame front and stifle combustion.

formation of carbon particles on the piston ring grooves, causing degradation of the oil seal between the ring and cylinder line and abrading the ring and liner. As the gap between the ring and liner increases, combustion Byproducts such as gases and unburned fuels blow into the crankcase, a problem known as blowby, eventually causing expanding gases to lose ability to push the piston down and generate the power necessary to propel the vehicle. Horsepower is lost and fuel efficiency decreases. Ring sticking and poor heat transfer from the piston to the cylinder wall can also result.


This, combined with the fuel and air that was absorbed, results in poor efficiency. As the chamber decompresses during the exhaust portion of
the stroke, the unburned fuel and air is released, resulting in both excessive fuel and air (containing oxygen) entering the exhaust system. The O2 sensor detects the excessive oxygen and the vehicle computer (ECM, ECU, PCM) compensates for this by enriching the mixture.

This causes poor catalyst efficiency, and increased carbon formation. The situation is aggravated by the overly rich mixture, resulting in the engine’s failure to reach a sufficient temperature to remove these deposits. In addition, the excess fuel can permanently damage the catalyst or cause meltdown (on the outlet side as opposed to the inlet) and can get hot enough to melt stainless steel substrates.

Does Carbon Alter Combustion in Other Ways?
Absolutely, in addition to causing poor combustion, excessive build up can also alter the vehicle’s compression ratio. The carbon fills up spaces around the piston rings, head gasket, and spark plugs. This decreases the amount of space that is available in the combustion chamber. This increases the compression, which can cause the engine to overheat, ping
(detonate), and also causes an increase in NOX emissions.

Due to the fact that the carbon can retain oxygen from the combustion
process, it can cause another interesting effect that can cause the vehicle to either trigger a light or fail an emissions test.

A catalytic converter requires certain conditions to break down harmful emissions. It requires a slightly rich mixture and a low oxygen level in the exhaust system to break down NOX. Because the carbon causes increased NOX emissions and also causes excessive oxygen to leave the combustion chamber unconsumed, this actually impairs the catalyst’s ability
to remove the NOX from the exhaust.

is more pronounced in diesel engines than gasoline engines
due to the ways fuel is injected and ignited. While fuel is injected during
the intake stroke and ignited with a spark in gasoline engines, it is
injected during the compression stroke and ignited spontaneously from the
pressure in diesel engines. Combustion is more efficient in gasoline
engines because the air and fuel have a chance to thoroughly mix, while the
late fuel injection in diesel engines produces fuel-dense pockets in the
combustion chamber that produce soot when ignited. Newer exhaust gas
recirculation (EGR) diesel engines, designed to reduce NOx emissions by
routing part of the engine’s exhaust stream through an intercooler and back
to the intake manifold, further compound soot problems in diesel engine
oils.


Now people running water/ alcohol injection don't have to worry about any of the above because it takes the carbon build up completly out of the picture.

[Taurus]

This should be put in quotes " " since it came from here http://www.alcohol-injection.com/for...ldup-1261.html

[tip_tipid]

eto ang T-Cash generator..he he he

[dvldoc]

This should be put in quotes " " since it came from here http://www.alcohol-injection.com/for...ldup-1261.html

No need to quote myself

[4JGtootsie]

He probably forgot to see your avatar and logos.
Its just a harmless mistake that he realized a little too late.
Sir Taurus we are inviting you sa Mar. 22 at Clark for a demo of Devilsown a.k.a www.alchohol-injection.com. You can meet the owner that you requested quotation.

[niky]

eto ang T-Cash generator..he he he

T-Cash is no longer linked to post length. ;)

[alphaeous]

Very informative... Thanks bossing! Salamat tsikot!