Lesson 3/Learning Event 1
How do we arrive at the right decision when it comes to a vehicle engine? By performing an inspection of the
engine. By this means, we can locate the trouble and decide what parts are needed and how long it should take
to do the job, and only by this means can any of us be good mechanics.
There are ways for us to inspect an engine, or anything else, that will ensure we do a good job. If you are like
most people, when you think of an inspection the first thing you imagine is inspecting by the use of your eyes.
Really there are other means that ensure a complete job is being done. They are touching, smelling, and
hearing. All these methods coupled together will guarantee a complete job of any inspection.
When inspecting an engine or a vehicle, the inspector must use a system that permits little or no chance for
faults to go undetected. Mechanics do not perform inspections in exactly the same manner. Moreover, each
mechanic will vary slightly the system used on different types of vehicles to make it suit the arrangement of the
vehicle itself. After you have inspected a few vehicles, you will, no doubt, develop some ideas of your own on
how to go about an inspection. The inspection of any piece of automotive equipment is the first and most
important step in maintenance operations. Therefore, you must develop your own system soon. In the
meantime, you can inspect engines using the procedures outlined in this lesson.
RECORD ALL FAULTS
It is important that all the things that need to be repaired, replaced, or adjusted be written down so they are not
forgotten. A record of them must be made on DA Form 2404 (Equipment Inspection and Maintenance
Worksheet). Entries on the form can be made by the mechanic while performing the inspection.
Look the engine over first before you attempt to operate it. Here are some things you should look for.
When you look for oil leaks, start on one side or at any given point on the engine. Then work completely
around, under, and over the entire engine. Make sure you do not miss a spot where oil may leak.