5. What is the function of the fuel
injection pump?
Fuel injection pump sprays higher
pressure diesel in the cylinder
6. How does fuel enter the fuel pump?
Fuel enters fuel pump via two
methods:
• By gravity feed
• By pressure feed
7. Different parts of the in-line, high-pressure pump of a one-cylinder engine :
• Cam roller
8. Possible explanations for less fuel in the fuel pump :
• Less fuel in fuel tank
• Filter jammed by dirt
• Less oil delivery by fuel transfer pump
• Air lock in fuel line