Unit 3 Flashcards
Which oil pressure gauge uses direct pressure on the gauge to indicate the pressure?
Mechanical
Identify a protective device that shuts the engine down if oil pressure gets low
Oil pressure switch
Which component does oil pass through to flow to the piston pin and piston?
Connecting rod
What is one way oil is transported to the valve train components?
Hollow push rods
Which type of oil or coolant levels can reduce the cooling capacity of the oil storage system?
Low oil
Which component collects most contaminates in the lubricating oil?
Oil filter
You are adding new oil into the system; before you close the drain to push the oil oil remaining in the bottom of the sump out, when do you close the drain?
Once the oil pouring out of the drain becomes clear
The type of oil filter you would use a strap wrench in order to loosen the filter body is the
Spin on filters
In addition to sulfur what other substance from the fuel may get into the engine oil and form sulfuric acid?
Water from the cooling system or condensation
What is the dilution level of fuel of the test sample you create by adding fuel to a sample of new oil?
5 percent
Which oil testing method uses a computer analysis process that provides you with a detailed look at the engine oil?
Spectrometric Oil Analysis Program (SOAP)
Where must you document oil test results?
Inspection Checklist for the Generator Operating Log and AF IMT 719
What is your first step in removing the oil cooler from the engine?
Drain the coolant
What is a possible cause of excessive crankcase pressure?
Cylinder blow by
What type of situation causes the need to use a wire-reinforced hose in the cooling system to prevent the lower radiator hose collapse?
High suction from the water pump
Which component collects the heat from the coolant in a radiator to transfer it to the air?
Fins
What does antifreeze change in water when you mix it with water lowering the freezing point?
Specific gravity
Identify what drives the fan on an air cooled engine either directly or through gears?
Crankshaft
Which portion of the engine does coolant enter the engine to ensure there is always coolant in contact with all internal engine components?
Lower
At what pressures do most cooling systems operate?
10 to 15 psi
What opens a valve on the radiator cap, thus allowing coolant to move from the expansion tank to the radiator?
Pressure
How do you add antifreeze to an engine while it is operating?
Mix it thoroughly with a small amount of water
You inspect the water pump impeller’s ceramic seal for
chips, cracks, and rough conditions
When you are inspecting a radiator, what component must be straight and free of debris?
Fins
