Fuel Delivery Overview
Posted: Mon Nov 30, 2009 9:01 pm
Gasoline is a remarkable energy source and flammable. Start your own overview of any gasoline-powered automobile with a thorough inspection of fuel lines for routing and potential hazards of chafing or road debris strikes, and condition of hoses, clamps, and ignition risks like wiring or mechanical heat sources.
When checking a fuel system failure, please have your common sense switched "on". Do not use a hot incandescent light bulb for inspecting fuel leaks down at an injector for example. A cold LED flashlight would be the more sensible choice.
Fuel delivery and distribution is relatively simple. We have to bring liquid fuel to the distribution point and vaporize it in a quantity that ensures reliable combustion.
Fuel delivery comprises all hoses and the pump. A failure in the delivery system rarely causes sudden death, but it can. If the engine dies right out, you will want to first check for correct ignition, since this is the system that will most likely stop the engine dead. If ignition system is firing off nice sparks when you crank the engine briefly, start way up the river of the fuel system with essentials like "is there fuel in the tank?" Go ahead and pull a hose off downstream of the pump, place hose in a safe secure container where you can crank the engine briefly again to see if fuel is delivered.
Distribution problems will only cause partial failure, which will seem as traumatic due to the bucking and hiccoughing and spitting and backfiring, but any time an engine manages to keep running, you are further on the road to solution than if it is not running at all. Dirty carburetors and failed fuel injectors and sudden large vacuum leaks can give your engine just enough of a fuel mixture to fire intermittently. Remember, don't be here unless you have proven your ignition system first.
When checking a fuel system failure, please have your common sense switched "on". Do not use a hot incandescent light bulb for inspecting fuel leaks down at an injector for example. A cold LED flashlight would be the more sensible choice.
Fuel delivery and distribution is relatively simple. We have to bring liquid fuel to the distribution point and vaporize it in a quantity that ensures reliable combustion.
Fuel delivery comprises all hoses and the pump. A failure in the delivery system rarely causes sudden death, but it can. If the engine dies right out, you will want to first check for correct ignition, since this is the system that will most likely stop the engine dead. If ignition system is firing off nice sparks when you crank the engine briefly, start way up the river of the fuel system with essentials like "is there fuel in the tank?" Go ahead and pull a hose off downstream of the pump, place hose in a safe secure container where you can crank the engine briefly again to see if fuel is delivered.
Distribution problems will only cause partial failure, which will seem as traumatic due to the bucking and hiccoughing and spitting and backfiring, but any time an engine manages to keep running, you are further on the road to solution than if it is not running at all. Dirty carburetors and failed fuel injectors and sudden large vacuum leaks can give your engine just enough of a fuel mixture to fire intermittently. Remember, don't be here unless you have proven your ignition system first.