Question

What should be done before initial start-up of a rebuilt engine?

a. Perform a compression test
b. Perform a cylinder leakage test
c. Release the parking brakes
d. Prime the lubrication system

Answer 1

Before starting a rebuilt engine, it is important to prime the lubrication system to ensure all components are well-lubricated, reducing friction and preventing wear.

Step-by-step explanation:

Before the initial start-up of a rebuilt engine, it is important to prime the lubrication system. This means ensuring that oil is circulated throughout the engine before it is started, providing critical lubrication to the components. This step helps in reducing the initial friction and preventing unnecessary wear on the engine components. It is much more crucial than performing a compression test or a cylinder leakage test, which are done after the engine has been started to diagnose specific issues, or releasing the parking brakes, which is not directly related to the condition of the engine itself.