Replacement fuel pump with your hands

Depending on what injection system is used in automobile, vary and replace the fuel pump. Is to see how the fuel supply to carburettor and injection vehicles. Despite the fact that the first is no longer manufactured, on the roads they are still a large number. Yes, and some tuning fans prefer carbureted motors, as at low revs they are capable of delivering torque and power higher than injection. But the latter are easier to use. One of the absence of suction is already enough.

The fuel Pump in carbureted vehicles

He is one small feature – it is driven from the Cam gear located on the camshaft. The design is not fuel pump relay, since the drive is mechanical, no electronic control is not provided. A simple membrane which is driven by the stock. In the original position helps her come spring. As the rod moves constantly, the membrane is also when the engine is in motion without stopping. To ensure the normal supply of gasoline in the carb, used a system of two valves.

To replace the fuel pump you will need two tools-a screwdriver and wrench to 13. First you need to weaken the clamps, which made the fastening of the fuel pipes. Remove them carefully, if necessary replace. It is better to conduct this work on a cold engine. After this key 13 is necessary to Unscrew two nuts. It's all a mount housing of the fuel pump. If you plan to replace the stock, you need to install gaskets under the fuel pump. You need to ensure maximum reach of the stock, it needs to be what is specified in the manual for the specific vehicle. Further, the fuel pump replacement is to install new and connecting fuel pipes.

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How it works injection engine?

For reliable operation of the direct injection engine uses an element such as the fuel pump. It creates pressure in the fuel rail, which is necessary for fuel injection. In fact, nothing complicated in the process. Air-fuel mixture is in a compressed state. Rail mounted solenoid valves (injectors) that open and close flow of gasoline. Supply is regulated by the electronic control unit and a sensor system connected to it.

The fuel Pump injector engine

Here the design is a little more complicated, and look for the fuel pump in the engine compartment does not make sense, because it is not there. It is located directly in the tank. But do not think that the elementary filter replacement fuel pump will result in the fact that you will need to dismantle the tank. Not at all, just raise the rear seat, under which you'll see a layer of carpet or sound insulation. Closer to right side there is a square neckline that without any damage to the car is raised.

Under it you will see a plastic cover, which is secured by two screws. By loosening them, you will receive access to the compartment of the pump. It summed up to two hoses, and wires for connecting the motor and the float level sensor. The last two devices are combined into a single node. To pull out all the design, you need to disconnect the plugs, disconnect tubing and Unscrew eight nuts. On most cars they out the key 8. Before starting work, get rid of dust, so it does not hit the fuel tank after removing the pump.

Health Check fuel pump

If the ignition is on do not hear the hum from the rear of the car, it will likely not activate the fuel pump. Reasons for this can be many. It is not excluded that the failed fuel pump relay. But there may be more unexpected happening, recognize that it does not always work immediately. For example, damage to the wiring. Disconnect the power plug from the pump, swipe the measurement of voltage on it. If not, relay is fine, it is quite possible that the integrity of the transaction. But before you disassemble the entire interior to find the open, check the fuse.

But that's not all the reasons why you may not be voltage at the fuel pump. Often the failure of a signalling unit. To prevent car theft installers of security systems break the wire leading to the power to the fuel pump. It is reasonable: if there is no power fuel pump, then it will not work to cause rail pressure which would suffice to operate the engine. If the cause of failure lies in the Central alarm unit, then you need to find a place to connect the power contacts. And restore the factory condition of the wiring.

Installation fuel pump

If the failed motor, then restore the design makes no sense. It is worth noting that to change the whole fuel pump, the price is 2500-2600 rubles, it makes no sense. Will be cheaper to replace the motor with a pump. The price of this device is 1,000 to 1,500 rubles depending on the manufacturer. But if you decide along the way to change the filter and the sensorthe fuel level, the value of all elements of the system will be approximately equal to the price of the whole Assembly.

Setting the fuel pump will not take much time, require a key to 8, preferably of the tubular type, since it is easier to work with. Will also need a screwdriver-a Phillips or flat, depending on which clamps you have used. Mounted on the studs, a new gasket, then carefully assemble the housing of the pump in the hole. Then combine holes to hit the studs. Loosely tighten the nuts, then tighten them. It now remains to connect the fuel tubes and install the plugs into place. Simply replace the fuel pump. "Priora" – one of the new domestic cars, but even on it to install the fuel pump runs for such a scheme.

Insights

Despite the fact that the pump is in such a distance from the driver, he must always follow. First, time to change the filter. Secondly, clean the contacts of the motor of oxides. Please note that when a clogged filter, the engine begins to operate under heavier load, sometimes not even time to pump the necessary amount of fuel to the rail. But if run all to allow the filter to collapse, then all the dirt gets into the injector, which instantly clogged. Timely replacement of the fuel pump and filter will prevent these disastrous results.