Question 1

Engine vacuum on a normal stock rebuilt engine should be ________

Accepted Answer

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

Question 2

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?

Accepted Answer

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

Question 3

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?

Accepted Answer

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

Question 4

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

Accepted Answer

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

Question 5

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

Accepted Answer

A) Four wheel drive (4W
D)  
B) Front wheel drive (FW
D)  
C) Rear wheel drive (RW
D)  
D) Both A and C 
A) Four wheel drive (4W
D)  
B) Front wheel drive (FW
D)  
C) Rear wheel drive (RW
D)  
D) Both A and C

Question 6

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?

Accepted Answer

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

Question 7

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

Accepted Answer

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

Question 8

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?

Accepted Answer

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

Question 9

Normal operating temperature is reached when ________.

Accepted Answer

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 
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 10

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

Accepted Answer

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

Question 11

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

Accepted Answer

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 
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 12

"Dressing the engine" means ________.

Accepted Answer

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

Question 13

Lugging an engine means ________.

Accepted Answer

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 
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 14

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

Accepted Answer

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

Question 15

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?

Accepted Answer

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

Question 16

Break-in engine oil is ________.

Accepted Answer

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

Question 17

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?

Accepted Answer

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

Question 18

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

Accepted Answer

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 
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 19

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

Accepted Answer

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 
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 20

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

Accepted Answer

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 
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

Exam 38: Engine Installation and Break-In

Engine vacuum on a normal stock rebuilt engine should be ________

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?

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?

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

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

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

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?

Normal operating temperature is reached when ________.

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

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

"Dressing the engine" means ________.

Lugging an engine means ________.

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

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?

Break-in engine oil is ________.

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?

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

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

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

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