Deck 38: Engine Installation and Break-In

Question 1

"Dressing the engine" means ________.

A)Installing all of the exterior engine components
B)Changing the oil and filter
C)Cleaning the engine
D)Both B and C

Answer 1

Installing all of the exterior engine components

Question 2

If the bell housing is not properly torqued to the engine block, ________.

A)The crankshaft will crack
B)The rear cylinder can be distorted (become out-of-round)
C)The bell housing will distort
D)The engine block will crack

Answer 2

The rear cylinder can be distorted (become out-of-round)

Question 3

Break-in engine oil is ________.

A)Of the same viscosity and grade as that specified for normal engine operation
B)SAE 30
C)SAE 20W-50
D)SAE 40

Answer 3

Of the same viscosity and grade as that specified for normal engine operation

Question 4

Normal operating temperature is reached when ________.

A)The radiator cap releases coolant into the overflow
B)The cooling fan has cycled at least once (if the vehicle is so equipped)
C)The upper radiator hose is hot and pressurized
D)Both B and C

Question 5

Lugging an engine means ________.

A)Wide-open throttle in low gear above 25 miles per hour
B)That engine speed does not increase when the throttle is opened wider
C)Starting a cold engine and allowing it to idle for longer than five minutes
D)Both A and B

Question 6

Which computer sensor should be replaced to help ensure that the engine will be operating at the correct air-fuel ratio?

A)Oxygen sensor
B)Manifold absolute pressure sensor
C)Engine coolant temperature sensor
D)Throttle position sensor

Question 7

How should the vehicle be driven to best break in a newly overhauled engine?

A)At idle speed and little or no load
B)At a steady low speed
C)At varying speeds and loads
D)At high speeds and loads

Question 8

In which type of vehicle is the engine most likely to be installed from underneath the vehicle?

A)Four wheel drive (4WD)
B)Front wheel drive (FWD)
C)Rear wheel drive (RWD)
D)Both A and C

Question 9

Engine vacuum on a normal stock rebuilt engine should be ________

A)19 to 23 in. Hg.
B)10 to 15 in. Hg.
C)17 to 21 in. Hg.
D)12 to 16 in. Hg.

Question 10

Why must flat-bottom lifter camshafts be broken in at a fast idle?

A)The cam in a cam-in-block engine is only lubricated by splash oil
B)The flat-bottom of the lifters must become slightly concave in order to rotate
C)Both A and B are correct
D)Neither A nor B are correct

Question 11

Technician A says to carefully install all accessories when installing a replacement engine. Technician B says that when installing the transmission and other components on the engine block, be sure to use a box wrench to tighten all fasteners to factory specifications. Who is right?

A)Technician A only
B)Technician B only
C)Both technicians A and B
D)Neither technician A nor B

Question 12

Technician A says to always adjust the clutch free play after starting the engine. Technician B says that the old clutch disc can be reused if it looks OK. Who is right?

A)Technician A only
B)Technician B only
C)Both technicians A and B
D)Neither technician A nor B

Question 13

Two technicians are discussing the installation of a rebuilt engine into a vehicle. Technician A says that the radiator should be flow tested to help ensure that the engine will not overheat. Technician B says that a new thermostat should be installed. Who is right?

A)Technician A only
B)Technician B only
C)Both technicians A and B
D)Neither technician A nor B

Question 14

Technician A says to use SAE 30 engine oil on an engine break-in. Technician B says that it is recommended to change the engine oil and filter after 30 minutes of running time. Who is right?

A)Technician A only
B)Technician B only
C)Both technicians A and B
D)Neither technician A nor B

Question 15

Before installing or starting a new or rebuilt engine, all of the following items should have been checked, EXCEPT ________.

A)Pre-lube engine and check for proper oil pressure
B)Check that all of the vacuum lines are correctly installed and routed
C)Rear axle is topped off
D)Battery fully charged

Question 16

After rebuilding an engine, you need to have which of these near when the engine is first started?

A)Fire extinguisher
B)Bucket of water
C)First Aid Kit
D)Blanket

Question 17

Technician A says that if the engine was removed with the transmission attached, the transmission should be reinstalled on the engine before other accessories are added. Technician B says that he flywheel attaching bolt holes are always evenly spaced so that the flywheel will fit in any way. Who is right?

A)Technician A only
B)Technician B only
C)Both technicians A and B
D)Neither technician A nor B

Question 18

Technician A says that it is generally easier to install the starter after the engine is put in the chassis.Technician B says that some engines drive all the accessories with one belt. Who is right?

A)Technician A only
B)Technician B only
C)Both technicians A and B
D)Neither technician A nor B

Question 19

Always adjust the ________ before starting the engine to help prevent thrust bearing damage.

A)Driveshaft angle
B)Brake pedal travel
C)Clutch free play
D)Shift linkage

Question 20

The ________ is part of the transmission case on most automatic transmissions.

A)Output shaft
B)Drive plate
C)Bell housing
D)Input gear