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An insect's mouth, located centrally at the base of the mouthparts, is a muscular valve (sphincter) that marks the "front" of the foregut. Food in the buccal cavity is sucked through the mouth opening and into the pharynx by contractile action of cibarial muscles. These muscles, located between the head capsule and the anterior wall of the pharynx, create suction by enlarging the volume of the pharynx (like opening a bellows). This "suction pump" mechanism is called the cibarial pump. It is especially well-developed in insects with piercing/sucking mouthparts.
taken from http://www.cals.ncsu.edu/course/ent425/tutorial/stomo.html
What else can I help you with?
How does a rotary pump work?
how does a rotatory pump work
If fuel pump relay is bad will fuel pump still work?
If the relay is bad, then the fuel pump will not work.
1997 Pontiac transport Why wont your fuel pump work New fuel pump relay and power to the pump but it still does not work?
Bad fuel pump?
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A blockage in the downstream side of the pump could make this pump work harder raising the amps as the pump now has to do more work to get through the line. An upstream blockage would make the pump spin more freely lowering the amps on the pump as it will not be doing any work.
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You cannot do that. The pump impeller blades will only work one way.You cannot do that. The pump impeller blades will only work one way.
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The pump does work, but there is very little fluid movement in park.
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You can but I would not advise it. Purchase a new pump and you will then know for sure that after all the labor of installing the pump it will actually work, unlike a used pump from a wrecked vehicle which may not even work or may only work for a short time.
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Yes, it is a fuel pump relay.
Where is the fuel pump fuse on 1994 BMW 525i and how can i test to see why my fuel pump won't work?
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NO....if Fuel pump doesnt sent fuel to engine...engine cannot combust...
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The pump could be defective. Or the power may not be getting to the pump. Check the pump fuse and relay to start with.
