66 Auto Fundamentals
Identifi cation and
Classifi cation
The remainder of this chapter is devoted
to engine classification and parts identification.
Study all of the engine fi gures in this chapter
very carefully. Make certain you know the name
and purpose of all parts. It is most important
that you build a complete and accurate mental
image of the various types of engines, and the
relationship of one part to the other.
As you study each fi gure, ask these questions:
• Is it a four-stroke cycle or a two-stroke
cycle engine?
• Is this engine air- or liquid-cooled?
• Is this a V-type, inline, or opposed
engine?
• How many cylinders does it have?
• Does it burn gasoline, diesel, or other
fuel?
• What type of cylinder head is used?
• How many camshafts does it have and
where are they placed?
• What type of combustion chamber
design is used?
• Do I know the names and uses of all
the parts?
• Do I know the working relationship of
one part to another?
In addition to knowing the names and uses
of all parts, be certain to test your knowledge of
the various systems by identifying the cooling,
lubrication, ignition, and fuel systems.
Figure 3-34.
Fuel cell vehicles do not use gasoline. Instead, they rely on hydrogen and oxygen to generate the electricity that powers
an electric motor.
Goodheart-Willcox Publisher