Vehicles, TM 9-8000, and Detroit Diesel Engines
provide the combination of desired characteristics.
Series 53 Service Manual, NAVAIR 19-45D-32.
Such metals as copper, lead, tin, mercury, antimony,
cadmium, and silver are used. Many combinations are
Q3-12.
The spark plug is threaded into which of the
possible. Each ingredient, or metal, supplies certain
following parts of the engine?
characteristics. The engine designer selects the
1.
The intake manifold
combination of ingredients that will best suit the
2.
The cylinder head
engine.
3.
The engine block
4.
The valve cover
AUXILIARY ASSEMBLIES
Q3-13.
What component connects the piston to the
In addition to the main parts of the engine, there are
crankshaft?
other parts, both moving and stationary, that are
1.
The connecting rod
essential to engine operation. They are not built into the
2.
The drag link
engine itself, but, in most cases, are attached to the
3.
The piston pin
engine block or cylinder head.
4.
The camshaft
The fuel system includes a fuel pump and
Q3-14.
Which of the following components will
carburetor mounted on the engine. In diesel engines the
prevent the fuel-air mixture in the cylinder
fuel injection mechanism replaces the carburetor. An
from being lost?
electrical system is provided to supply power for
starting the engine and also for ignition during
1.
The oil ring
operation. An efficient cooling system is necessary for
2.
The intake ring
operating an internal combustion engine. In
3.
The compression ring
water-cooled engines, a water pump and fan are used,
4.
The exhaust ring
while in air-cooled engines a blower is generally used
Q3-15.
Which of the following conditions is the first
to force cool air around the engine cylinders.
indication of a faulty lifter?
QUICK ENGINE CHANGE CONCEPT
1. Excessive oil leaking from the valve cover
2. A clicking noise can be heard while the
The engine's parts are designed so that the whole
engine is running
assembly can be removed from and replaced in the
3. Oil is found in the radiator
vehicle as a unit. This is the non-avionic common
4. Black smoke is noticed coming from the
aviation support equipment Quick Engine Change
Program (QEC). Under the QEC concept, if a unit
Q3-16.
Which of the following components keep the
requires a major engine job, the power plant can be
camshaft and the crankshaft turning in proper
removed and another one quickly installed. Under
relation to one another?
QEC, the unit is out of service only as long as it takes to
swap engines.
1.
The timing marks
2.
The valve timing indicators
For further information on gas and diesel engines
3.
The horizontal timing unit
and their systems, refer to Principles of Automotive
4.
The timing gears
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