Fuel pump gasket replacement is a detailed process, as the new gaskets must be sealed carefully to prevent leaks. It typically begins with depressurizing the fuel system. Many mechanics will tell you to disconnect the battery first. This is primarily a safety issue since fuel systems usually operate under high pressure — say, 30-60 psi or so. When you access the pump it reduces any risk of fuel spraying.
On many of them, you do have to take the fuel pump off — which is usually in the gas tank. While this means the gas tank may not be convenient, on most vehicles you will need to lower or bring down a panel from under the back seat in order to gain access. The process could be accomplished in about an hour, depending on the vehicle model and tools at hand. Later, once the fuel pump can be got at, mechanics will disconnect the fuel lines as well as electrical connectors and securing bolts; they should take care to mark all components in order not to bungle re-assembly.
Once you remove the pump, take off and review this old gasket. Gaskets that are bad can deteriorate over time and will last the life of a high mileage -- 100,000 miles or more -- vehicle. Updated gaskets are made of rubber or similar materials and can withstand the high temperatures/pressures to prevent it from happening. In addition to competition regarding horsepower and speed, do not forget that the installation of a good quality gasket in your fuel pump can increase its durability by 20-30%.
When reassembling, the new gasket is then lined up with the pump. Fuel leaks are dangerous, and insufficient alignment can result in such a problem requiring repairs. To guarantee a good seal, the gasket needs to be squashed down evenly and safely onto place; mechanics accomplish this by torquing bolts on an aluminum head around 15-20 lb-ft as per factory specs.
The last check is made so the fuel lines are connected correctly and the practical components are in place. The entire fuel system of the car is then pressurized again and further it tests that pump to be certain that there are no leaking problem. The entire process took approximately 2-3 hours, but the duration depends on two factors: vehicle type and how experienced your mechanic is.
If you're experiencing fuel leakage or loss of mileage, then this could be the result of a gasket that has reached its end. Replacing it as part of routine maintenance helps improve fuel efficiency, and ensures safe operation. If you would like to learn more about Fuel Pump Parts, visit the site Fuel Pump