Frequently Asked Questions. TI Automotive has been producing automotive fuel pumps under the Walbro name since TI Automotive markets these fuel pumps through their own sales channels. From there you will see the part number and its list price. The correct repair kit and or diaphragm and gasket kit will be listed at the top. Each carburetor series has a specific metering lever height between the metering lever and metering diaphragm assembly. This height is critical for obtaining an acceptable rich or lean setting.
Why are there different colored pump diaphragms in my Walbro carburetor repair kit? As voltage increases so does the speed of the fuel pump which will increase the flow of a pump at any given pressure. Because of this it is good practice to see how a pump is rated at a given voltage.
Most cars will produce about However, if your alternator does not produce Now that you understand the three main factors that you should consider when selecting a fuel pump you can put all that information together and get a good idea of how much horsepower a given fuel pump can supply for a specific setup. All that you need is a fuel flow chart of the pump that you are considering.
For example take a look at our GPA-4 fuel pump assembly flow chart. Now lets assume that your engine requires 60 psi and your fuel pump will be supplied with As you look at the chart you can see that at 60 psi and If you use that same pump on a carbureted engine the pressure required for most carburetors is under 10 psi.
Again assuming 10 psi and As you can see from the two examples above the pressure required for your engine drastically changes the amount of flow a pump can produce which in turn affects the amount of horsepower a given pump can support. Keep in mind that it is always a good idea to estimate conservatively when selecting a pump. Figure your horsepower on the high side so that you have a large enough pump for your system.
If your pump is larger than what your system requires the excess fuel is simply returned back to the tank through the fuel return line. Below we have the flow charts for the Walbro pumps we sell. Horsepower ratings can be figured by finding the flow rating in gph or lph at a given pressure and voltage. An fuel pressure regulator FPR controls the amount of fuel that goes into the intake manifold via the vacuum line after it passes through the injectors.
How does a typical EFI electric fuel injection system work? Below is a diagram which we have drawn to show the basics of how your fuel system works. Fuel Tank 2. Intank Fuel Filter 3. Typical Walbro Electric Fuel Pump 4. In-tank Fuel Line 5. Fuel Sending Unit 6. Fuel Level Meter 7. Outgoing Fuel Line 8. External Fuel Filter 9.
Fuel Rail Intake Manifold Engine Fuel Pressure Regulator Vacuum Line Fuel Return Line. My application is not listed. Do you have a fuel pump that will work with my car? In general, most automotive manufactures share the same style of fuel pumps.
For example, all the GSS intank fuel pumps sold on our website are the same size and almost identical to each other asides from the filter pointing in opposite directions as you can see in the photo below. This standard fuel pump style is used in thousands of vehicles, both import and domestic.
0コメント