What do injector return lines do?
What do injector return lines do?
as others have mentioned , there is a set of different functions that the return line provides, one of which is a pressure over flow port, so that the fuel has some place to go when it gets too much pressure, and is released back to the tank. Another function that the diesel fuel provides is cooling.
What is a diesel return pipe?
Diesel leak off Pipe (also named Return Line)is used for returning of the excess fuel after injecting fuel into the diesel engine.
What do injector leak off pipes do?
The leak off pipes link the injectors to a spill rail, which takes excess fuel back to the injection pump and then back to the tank. They are small braided hoses that can wear over time and can introduce air into the system.
Why do you need a return fuel line?
It’s primary purpose is to return excess fuel from the carburetor to the fuel pump, however it serves other important functions as well. Aside from providing a path for excess fuel to return to the tank, the fuel return hose also prevents vapor lock and over pressurization from occurring within the carburetor.
How do you remove a fuel injection line?
Use a creeper to slide under your vehicle and check for any fuel leaking on the supply, return, or vapor injection lines. Step 1: Remove the fuel injection line. Use a fuel hose quick disconnect tool and remove the fuel injection line from the fuel rail behind the engine along the firewall. Step 2: Remove the fuel injection line.
How does the return injection low pressure line work?
The fuel injection system uses about 60% of the fuel transferred from the fuel tank to the fuel rail. The return injection low pressure line sends the 40% of fuel unused back to the fuel tank.
What do I need to overhaul my injectors?
Injector tools and parts for overhauling the injectors. Most notably is the pressure tester. You will also need a shim set for adjusting and brass cleaning tools. Before changing the nozzles, a fuel system purge should be done.
What kind of lines are used for fuel injection?
Some of the lines were transferred to rubber liner hoses before they reached the engine compartment. All vehicles from 1996 till today have plastic lines that are known as fuel injection lines. The plastic, or carbon fiber, does not rust or leave particles in the fuel.
Use a creeper to slide under your vehicle and check for any fuel leaking on the supply, return, or vapor injection lines. Step 1: Remove the fuel injection line. Use a fuel hose quick disconnect tool and remove the fuel injection line from the fuel rail behind the engine along the firewall. Step 2: Remove the fuel injection line.
The fuel injection system uses about 60% of the fuel transferred from the fuel tank to the fuel rail. The return injection low pressure line sends the 40% of fuel unused back to the fuel tank.
When did they start using fuel injection lines?
Fuel injection has been around since the 1950s, and electronic fuel injection was used widely on European cars starting around 1980. Now, every car sold in the United States from dealerships are equipped with a fuel injection system. Fuel lines are designed to transfer fuel from the fuel tank to the engine.
What are the different types of fuel injection lines?
The three types of fuel injection lines found in modern vehicles are: The return injection vapor line collects any fuel that bypassed the combustion chamber and exited the engine. This vapor line sends the raw emissions to a charcoal canister to collect the hydrocarbons and sulfur in the vapor.
