AMT 212 WEEK 4 PPT 1. Flashcards
The carburetor air filter is
installed in the carburetor air
duct.
Carburetor air filter
An aluminum alloy frame and a
deeply crimped screen normally
constructed from heavy paper,
arranged to present maximum
screen area to the airstream.
Carburetor air filter
The carburetor air ducts provide
a passage for outside air to the
carburetor.
Carburetor air filter
Dust consists of small particles of
hard, abrasive material that can
be carried by the air and drawn
into the engine cylinders.
* Dirt particles act on the cylinder
walls by grinding down these
surfaces and the piston rings.
* When operation in a dusty
atmosphere is necessary, the
engine may be protected by an
alternate induction system air
inlet that incorporates a dust filter.
Induction system filtering
Consist of a Filter
element, a door, and an electrically
operated actuator.
Dust filter
A _____ air valve is located in the air
box upstream of the carburetor.
Carburetor Heat System
It is used for :
- Selecting an alternate warm air source
(carburetor heat) to prevent or remove
carburetor ice.
* Carburetor icing occurs when the temperature
is lowered in the throat of the carburetor and
enough moisture is present to freeze and
restrict or block the flow of air to the engine.
Carburetor Heat system
Steel (old systems)
- Aluminum (Frequently used material)
* Regardless of material selection for the air
box, the construction of the unit is
engineered to prevent the ingestion of
hardware materials through the use of
welding and rivets.
Carburetor air box
The ____ resembles a throttle valve and
is used to select whether the engine is to
ingest cold filtered air or hot unfiltered air.
Carburetor air box
It draws hot air to help prevent ice formation
in the carburetor
- It draws air to the carburetor if the primary air
passage is clogged due to dirt, ice, and FOD
Carburetor air valve
