Lifty Fuel Pump Messi 240 Millat

This type of pump is commonly found on older carbureted gasoline engines and, very frequently, on diesel engines (such as those in tractors, older trucks, and industrial generators).

Here are the detailed specifications and features based on the visual evidence:

1. Product Identification

• Component Name: Mechanical Fuel Lift Pump (also known as a Transfer Pump or Feeder Pump).

• Likely Application: Judging by the specific design of the manual priming lever and the mounting flange, this looks very similar to pumps used on Perkins engines, Massey Ferguson tractors, or older Land Rover diesel engines.

2. Key Visual Features

• Camshaft Actuator Arm (The large metal arm): The long, flat metal arm protruding from the right side is designed to go inside the engine block. It rides against the engine’s camshaft. As the camshaft spins, it pushes this arm up and down to power the pump.

• Manual Priming Lever (The brass-colored lever): The smaller lever on the side is a manual primer. This allows the operator to manually pump fuel into the system to bleed out air after changing a fuel filter or running out of fuel. This feature is a strong indicator that this is likely for a diesel application.

• Diaphragm Housing: The cylindrical top section contains a rubber diaphragm and a spring. The visible red/orange gasket seals the two halves of the housing to prevent leaks.

• Inlet/Outlet Ports: The holes on the top/side (currently capped with plastic plugs) are where the fuel lines connect. One pulls fuel from the tank, and the other pushes it toward the carburetor or injection pump.

3. How It Works

1. Suction Stroke: As the engine rotates, an eccentric lobe on the camshaft pushes the Actuator Arm. This pulls the internal diaphragm down, creating a vacuum that sucks fuel from the tank into the pump.

2. Pressure Stroke: When the cam rotates away, a heavy internal spring pushes the diaphragm back up. This pushes the fuel out of the pump and toward the engine.

3. Regulation: Because it is spring-loaded, the pump will stop delivering fuel if the line pressure gets too high (e.g., if the carburetor float bowl is full), preventing flooding.

4. Common Signs of Failure

If you are looking at this part because your machine is broken, here are common symptoms associated with a bad lift pump:

• Fuel Leaks: Leaking from the “weep hole” or the red gasket area usually means the internal diaphragm has ruptured.

• Oil Contamination: If the diaphragm breaks, fuel can leak backward into the engine crankcase, thinning the engine oil (smelling oil on the dipstick is a sign of this).

• Hard Starting: If the check valves inside the pump fail, fuel drains back to the tank overnight, making the engine hard to start.

• Loss of Power: The engine starts but dies under load because the pump cannot flow enough fuel to keep up with demand.

Would you like me to help you identify the specific vehicle or engine this pump belongs to? If so, please tell me the make and model of the machinery you are working on.