Deck 16: Reassembly and Starting

Question 1

Technician A says backfiring will occur if the distributor is installed 180° off. Technician B says a rebuilt engine should not be run at idle speed for the first few minutes after it is started. Who is right?

A)Technician A
B)Technician B
C)Both technicians
D)Neither technician

Answer 1

C

Question 2

The first oil change on a rebuilt engine should be performed at _____ miles.

Answer 2

500

Question 3

Technician A says when reassembling an engine, mushroom-style lifters must be installed after the camshaft. Technician B says it is impossible to straighten a warped camshaft. Who is correct?

A)Technician A
B)Technician B
C)Both technicians
D)Neither technician

Answer 3

D

Question 4

Technician A says to avoid lubrication on the thrust bearing surfaces. Technician B says when installing main bearing caps, tap them with a ball peen hammer to insure they seat properly. Who is right?

A)Technician A
B)Technician B
C)Both technicians
D)Nether technician

Question 5

A technician has installed a new camshaft and is now installing the distributor. Technician A says to be sure that the number one cylinder is on its intake stroke. Technician B says that the engine can be cranked or turned by hand until the distributor and oil pump are aligned. Who is right?

A)Technician A
B)Technician B
C)Both technicians
D)Neither technician

Question 6

Technician A says to soak the piston rings thoroughly in oil before installing them to prevent wear during initial break-in. Technician B says a bad fuel pump can trigger a knock sensor. Who is right?

A)Technician A
B)Technician B
C)Both technicians
D)Neither technician

Question 7

Technician A says when bearing clearance is excessive, polish the entire parting area. Technician B says for a 5-main bearing block, the typical torque sequence is 1,5,3,2,4. Which technician is correct?

A)Technician A
B)Technician B
C)Both technicians
D)Neither technician

Question 8

What tool will we use to check for crankshaft bearing oil clearance?

Question 9

Technician A says a short piece of fuel hose should be placed over the rod bolts to protect the crankshaft during removal and installation. Technician B says you should wear clean latex gloves before handling engine bearings. Who is correct?

A)Technician A
B)Technician B
C)Both technicians
D)Neither technician

Question 10

Technician A says that if a distributor has a gear on the bottom of its shaft, the oil pump cannot be primed in the normal way. Technician B says the lubrication system can be primed with a pressure primer. Who is correct?

A)Technician A
B)Technician B
C)Both technicians
D)Neither technician

Question 11

Two tools we use to check crankshaft end play are a(n) _____ and a(n) _____.

Question 12

Briefly explain what happens when vapor lock occurs.

Question 13

On an engine with a standard transmission, insure the flexplate is installed correctly.

Question 14

Technician A says valve lash can be set on some engines when it is running. Technician B says to break in the rings, on the highway accelerate to 50 mph and coast back to 35 mph at least 10 times. Who is right?

A)Technician A
B)Technician B
C)Both technicians
D)Neither technician

Question 15

A feeler gauge is used to measure mechanical valve lash.

Question 16

Without protective gloves, it is possible for acid from your hands to etch engine bearings.

Question 17

Technician A says when the timing is advanced, the idle will be high. Technician B says to check connecting rod side clearance with an inside micrometer. Who is correct?

A)Technician A
B)Technician B
C)Both technicians
D)Neither technician

Question 18

Immediately following an engine overhaul, why should the customer check the oil frequently?

Question 19

If an engine is difficult to start, spray starting fluid into it while cranking it over.

Question 20

Some main bearings have dowels that must fit into a hole in the block.

Question 21

Why should the crank be rotated after installing each piston?

Question 22

What procedure can be performed to its companion when a cylinder's valves are both rocking during valve overlap?

Question 23

A rolling head prybar is handy for aligning what part?

Question 24

Why is the crank pried forward and backward before torquing the thrust main bearing cap?

Question 25

What should be installed on the rod bolts to protect the crank against accidental nicks during piston installation?

Question 26

Two technicians are discussing crankshaft bearing installation. Technician A says that upper and lower main bearing inserts are always interchangeable. Technician B says to lubricate the backsides of the bearing inserts before installing them. Who is right?

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

Question 27

In automatic transmission cars, which seal should be replaced while the engine is out?

Question 28

The first service and checkup is recommended at _____ miles after an engine rebuild.

Question 29

Following an installation of a rebuilt engine, a technician breaks in the engine by accelerating from 45 mph to 55 mph and coasting back to 45 mph several times. During this process, which of the following is/are true?

A)Rings are pushed against the cylinder walls under pressure conditions.
B)Rings are pushed against the cylinder walls under vacuum conditions.
C)Oil is drawn onto the cylinder walls during deceleration to prevent scuffing.
D)All of the above
E)None of the above

Question 30

When tightening the exhaust manifold bolts, which ones are tightened first: inside or outside?

Question 31

An OHC cylinder head is being installed on an engine. Technician A says that some OHC cylinder heads cannot be installed if the camshaft is not positioned correctly at TDC. Technician B says that valves can be bent if the correct procedures are not followed. Who is right?

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

Question 32

Would an oil pump mounted inside the crankcase usually use a gasket on its outlet?

Question 33

Technician A says that a broken flexplate can result if an alignment bushing is missing and the engine and transmission are not in alignment. Technician B says that forcing an engine into alignment with its mounts can result in a distorted cylinder bore. Who is right?

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

Question 34

The engine should be run at 1500-2000 rpm for _____ minutes when first started after a rebuild.

Question 35

What should be done to threaded holes in the block before reassembling the engine?

Question 36

What service is performed on distorted stamped-steel oil-pan and valve-cover screw holes?

Question 37

How are the rings broken in during a test drive?

Question 38

Each of the following can result in reduced crankshaft bearing oil clearance EXCEPT:

A)Dirt on the surface of the bearing bore
B)Dirt in the recess where the bearing locating lug fits
C)Dirt on the block or the main bearing parting halves
D)A nick on the surface of the bearing bore

Question 39

When painting, how can you protect machined areas you do not want paint to stick to?

Question 40

If the block does not have aligning pins for the timing cover, how can the cover be aligned?

Question 41

An engine failed because it was overheated. Technician A says that a coolant temperature sensor could be defective. Technician B says that the fan relay could be defective. Who is right?

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

Question 42

A recently rebuilt engine has several burned pistons. Technician A says that pistons can burn or seize in the cylinder due to an intake manifold air leak. Technician B says that too rich an air-fuel mixture is a likely cause of this problem. Who is right?

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

Question 43

Which of the following is the best answer?

A)It is best to install the crankshaft sprocket onto the crankshaft after the crankshaft has been installed in the block.
B)When starting an engine with starting fluid, if the engine does not start, spray three more squirts into the air intake while you crank the engine.
C)Pry on the sheet metal power steering pump housing to adjust the belt tension.
D)On a pre-OBD II engine, when ignition timing is retarded, idle speed will be lower.

Question 44

Which of the following is/are true about rebuilt engine warranties?

A)If a problem with the engine is the fault of the technician, the rebuilder is not liable for the cost of the repair.
B)A fuel system problem can void the warranty.
C)Engine overheating can void the warranty.
D)Any of the above
E)None of the above

Question 45

Two technicians are discussing engine installation. Technician A says to install two of the bolts and pull the engine and transmission together by slowly tightening them. Technician B says that the engine mount bolts on one side of the engine must be torqued before installing the mount on the other side of the engine. Who is right?

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