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Both pumps create negative pressure to draw the fuel through the lines. However, the low pressure between the pump and the fuel tank, in combination with heat from the engine and/or hot weather, can cause the fuel to vaporize in the supply line. This results in fuel starvation as the fuel pump, designed to pump liquid, not vapor, is unable to suck more fuel to the engine, causing the engine to stall. This condition is different from vapor lock, where high engine heat on the pressured side of the pump (between the pump and the carburetor) boils the fuel in the lines, also starving the engine of enough fuel to run. Mechanical automotive fuel pumps generally do not generate much more than 10–15 psi, which is more than enough for most carburetors.

China Lutong Parts Plant is a professional OEM & Aftermarket parts supplier, which specialized in Head Rotors, diesel nozzle, plunger, delivery valve, Bosch head rotor, diesel injector, pencil nozzle for all kinds of vehicles and diesel engines. We have strong technique power, advanced equipment, craft, first class processing test equipment, perfect quality assurance system and excellent after services.We are always at your disposal to provide you with high quality products, perfect service and fast delivery at competitive price.
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1) 28 years  produce experience with  capacious warehousing
2) a competelty warranty systerm
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4) standard packing or as required
5) Factory price
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