What size is fuel fitting?
Understanding Fuel Line Fittings: Straight Thread (and AN) vs. Tapered Thread
|AN Size||Tube or Hose OD||Fitting Thread Size(SAE)|
Why does my fuel pump have 3 ports?
There is a test port on the fuel rail. It is there so you can run pressure tests. A pressure gauge and a voltmeter will tell the tale. Diesel engines, new or old, do not need throttle plates on them to function, whether for performance or emissions.
Does a mechanical fuel pump need a return line?
You don’t need it with a mechanical pump. Mechanical pumps supply fuel based on RPM, and so long as you’re not running a big hipo mechanical pump, you’re fine without a return.
Are mechanical fuel pumps interchangeable?
They are not interchangeable.
Why does my fuel pump have two outlets?
Fuel cels are usually* designed for very high output use in mind. Nitrous cars using alot of the squeeze require a second hit of fuel. So you would have two fuel pumps, and two outlets.
What are the 3 hoses on a fuel pump?
The inline fuel filter has 3 lines all combined in the area. The supply hose is connected to the fuel filter. The return hose is connected to the top of the fuel tank. The vapor return hose is connected to the charcoal canister.
What size fuel return line should I use?
The Fuel Return Line should be at least the same size, or one size larger than the supply. Make sure there are no sharp bends or kinks. The return line should direct fuel close to the bottom of the tank and away from the pickup.
Why do cars have 2 fuel lines?
Why Do Cars Have 2 Fuel Lines? Having multiple pumps allows fuel to not slosh from one end of the tank to another when driving on an incline or when cornering. Fuel will be flowing into one pump at any given time. The pump pushes gasoline into the fuel lines.