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What does EGT mean?
Exhaust Gas Temperature
In a turbine engine, Exhaust Gas Temperature (EGT), sometimes referred to as Turbine Outlet Temperature (TOT), is the temperature of the turbine exhaust gases as they leave the turbine unit.
What does low EGT mean?
The engine is simply not capable of producing EGTs that are high enough to harm anything. Therefore, attempting to limit EGTs in an attempt to be kind to the engine is simply wrongheaded. Limiting CHTs is essential to ensure cylinder longevity. Limiting EGTs accomplishes nothing useful.
What causes increased EGT?
As we pointed out earlier, high EGTs are the result of too much fuel for the available air. If you see EGTs climbing over 1300º F., the fastest way to reduce the amount of fuel going to the engine is to back off the accelerator pedal. Another possible solution is to downshift if your speed permits it.
Why is high EGT bad?
So you may be asking yourself, if high EGT is such a harmful thing, why doesn’t everybody make their engine run between 1,200 and 1,400 degrees? The simplest explanation is that it starts to get expensive to try and keep a powerful engine cooled down.
What is a safe EGT for a diesel?
The absolute maximum safe EGT range is debatable. Our universal rule of thumb, regardless of engine make/model/year, is to not exceed 1250° F and not to operate in the 1200° F – 1250° F range for an extended period of time.
What EGT temp is safe?
Generally, 1600 degrees Fahrenheit (871 degrees Celsius) is considered to be a good number, borderline high EGTs. It is probably safe to briefly run up to 1650F (899C) degrees.
What is the purpose of an EGT gauge?
An exhaust gas temperature gauge (EGT gauge or EGT sensor) is a meter used to monitor the exhaust gas temperature of an internal combustion engine in conjunction with a thermocouple-type pyrometer. EGT gauges are found in certain cars and aeroplanes.
How high is too high for EGT?
For towing, we’d say a sustained 1,200 to 1,300 degrees is a safe number, with occasional spikes of up to 1,500 degrees when climbing grades being an acceptable risk. The concept of EGT is analogous to putting something in the oven. You can put your hand in a hot oven for a second or two, and nothing will happen.
How do you reduce EGT?
be putting in a lot of fuel without pushing enough air through. A free flowing 4″ exhaust helps a lot to lower EGTs. the EGTs up quite rapidly.
What’s the difference between a CHT and an EGT?
CHT mainly reflects what’s going on in the cylinder during the Otto cycle power stroke before the exhaust valve opens, while EGT mainly reflects what’s going on during the exhaust stroke after the exhaust valve opens:
What does EGT mean on a jet engine?
EGT (or TIT) indicates whether the engine is running within parameters, but neither of them alone indicates how much thrust the jet engine is producing. Only recently manufacturers introduced a thrust indicator.
How big is the increase in EGT from a burned exhaust valve?
Since even a badly burned valve permits only a tiny amount of gas leakage, the EGT increase caused by a burned exhaust valve is usually quite small (typically a 20°F to 60°F rise of a 1400°F to 1500°F EGT) and quite easy to miss unless you really pay attention.
Where does the EGT probe go on a Cessna?
This means they get hot, and then cool down, 2400 times per minute. The average temperature is then sensed by the EGT probe for that cylinder and fed back to the engine monitor. In contrast, the standard implementation in Twin Cessna’s is to put the TIT probe aft of all three cylinders on the inboard side.