Deck 56: Engine Installation, Break-In, and In-Chassis Repairs

Question 1

Which of the following statements is LEAST-Likely true?

A)The first few minutes of an engine's operation are critical to its long life.
B)A new part might look quite smooth to the naked eye.Compared to a used, worn-in part, however, it is quite rough.
C)Heavy engine loads should be encouraged during break-in.
D)Moving parts are continuously separated by a film of oil; only the peaks on rough surfaces touch.

Answer 1

C

Question 2

Some ____________________ sensors can be triggered by a rattle from a loose valve adjustment or a muffler vibrating against the frame.

Answer 2

knock

Question 3

Engine mount bolts should be used to pull a V-type engine into place.

Answer 3

False

Question 4

When it is not possible to prime the system by removing the distributor, either use a(n) ____________________ or remove all spark plugs and crank the engine.

Question 5

All of the following statements are true EXCEPT:

A)acceptable leakage from bearings can be from 300 to 600 drops in a minute.
B)the supply of oil in the primer tank should be enough to fill the new oil filter as well as the oil lines in the block.
C)when oil is apparent at some of the rocker arms, the lubrication system is primed and the valve covers can be installed.
D)some pumps (the internal/external in particular) are not self-priming and must be filled with assembly lube before installation.

Question 6

Do not open the radiator cap unless the hose collapses when squeezed.

Question 7

While having a discussion, Technician A says that if the timing is retarded, engine idle will be too high. Technician B says that if the timing is advanced, the idle will be too low. Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question 8

Which of the following statements is LEAST-Likely true?

A)Check the cleanliness of head bolt threads as each one is removed.
B)The engine should be warm before removing the head.
C)It is a good habit to unbolt the head in a direction opposite to the normal tightening sequence.
D)When reinstalling the head, be careful that nothing is accidentally pinched between the head and the block.

Question 9

When an engine has a distributor ignition system, the lubrication system can usually be primed before installing the distributor.

Question 10

If the oil pan is to be removed with the car on a lift, the tool that is MOST-Likely used to raise the car is a(n):

A)drive-on lift
B)frame-contact hoist
C)engine hoist
D)pickle fork

Question 11

Engine-to-transmission housing screws provide alignment.

Question 12

A faulty ____ often points to a need for head surfacing, cooling system service, or repair to the engine's fuel or ignition system.

A)head gasket
B)flexplate
C)camshaft
D)timing chain

Question 13

While having a discussion, Technician A says that to avoid vapor lock, be sure that all fuel lines are positioned at least 1/2" from any heat source. Technician B says that fuel filters should be positioned where they can be cooled by air. Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question 14

Oil consumption might not stabilize until all parts have seated to one another. The customer should not be concerned until the vehicle has been driven at least ____ miles.

A)1,000
B)2,000
C)3,000
D)4,000

Question 15

All of the following statements are true EXCEPT:

A)oil is flammable at room temperature.
B)very few newer engines have mechanical valve clearance adjustment; most are hydraulically compensated.
C)attempting an overhead cam (OHC) adjustment with the engine running results in oil being thrown from the timing chain and cam, making a big mess.
D)hydraulic lifter lash on pushrod engines is best done during engine assembly.

Question 16

____________________ can be made by cutting the heads off some bolts and using a hacksaw to cut a screwdriver slot in them.

Question 17

Late-model cars have ____________________ sensors that will react to the frequency of the vibration of spark knock, retarding spark timing.

Question 18

Older engines with carburetors were susceptible to ____________________ that occurs when fuel vaporizes in a line and a bubble blocks fuel flow.

Question 19

An engine that has enough piston-to-valve clearance to prevent contact is MOST-Likely known as a(n):

A)hybrid engine
B)freewheeling engine
C)standard engine
D)OHC engine

Question 20

Without dowels, damage, especially to an automatic transmission flexplate, can occur in a short period of time.

Question 21

How would you remove the timing cover?

Question 22

What items should be checked when running an engine for the first time?

Question 23

How would you adjust the hydraulic lifter lash with the engine idling?

Question 24

Briefly discuss the technique that you would use to help seat the piston rings.

Question 25

What precautions should you bear in mind when taking a test drive?