How does the flame come out of the exhaust?

Hot metal fragments from cars exhaust blamed in Freeway Complex Fire – Press Enterprise

The unburnt fuel then enters the exhaust system, where hot components can cause the fuel to ignite unpredictably. Why do jet engines sometimes spit out flames after ingesting birds? General Content source: Dustin answered 9 years ago.

Please confirm you agree to the use of tracking cookies as outlined in the Cookies Policy. Appreciate 0 Tweet. The shop owner added: Some un-spent fuel can get into the exhaust, and if the cars been running for a while the exhaust can get hot enough to ignite the fuel, leading to the flames.

Now the power to keep the compressor turning decreased, the flow went back to normal, and the cycle repeated. So this is not so much a safety feature as physics taking over, and there is no real fire of immediate danger to the airplane. Auto experts say a vehicle would have to be several decades old and in disrepair to be spewing out metal fragments from the exhaust system. The term derives from parallel experiences with early unreliable firearms or ammunition, in which the explosive force was directed out at the breech instead of the muzzle.

Namespaces Article Talk. Instead of the spark occurring as the piston reaches top dead centre, the spark is delayed until the piston has already started to reciprocate back downwards in its power stroke. Motor vehicle maintenance Engine problems. Top Fuel and other forced induction race cars will be the only ones that really shoot consistent flames.

Relevant discussion may be found on the talk page. Want to join? Does your car backfire regularly? Fayaz answered 9 years ago. To understand what is happening, look at this diagram of a turbine engine: For racing I assume it's because they'd rather run a little rich than not burning as much fuel as they could.

Tailpipe Fire - SKYbrary Aviation Safety

By using our site, you acknowledge that you have read and understand our Cookie Policy , Privacy Policy , and our Terms of Service. Rather than burning, the oil normally evaporates and re-condenses at a particular droplet size, but under abnormal conditions it may catch fire or even produce a thermobaric explosion.

An explosion happening anywhere outside the combustion chamber, that's a bad thing. It works, I've done it on carbed vehicles in the past. It is the former that could also lead to a second cause of backfiring.

Want to add to the discussion? The flame is only in the normal flow path and will stop once the fuel is cut off.

How To Make Your Car Shoot Flames

Learning is neat that way! Is there a surge warning alarm or something like it in the avionics? Backfiring in internal combustion engines occurs outside of the combustion chamber, and is typically the result of an improper air to fuel ratio. Cincinnati iTrader: Your Answer: Problems with catalytic converters on cars built since are usually signaled by a check engine light, Mazor said. A slightly rich mixture gives you the biggest amount of power.