Engine Block and Cylinder Liner Service 190201c pg. 66

Question 1

Which of the following should not be used to clean aluminum components?
A. Petroleum solvents.
B. Steam Cleaner.
C. hot tank (caustic solution)
D. mechanical parts washer.

PG. 111

Answer 1

C. Hot tank. (Caustic solution.)

Question 2

If a cylinder block is being cleaned for overhaul, \_\_\_\_\_\_\_\_\_\_ should be removed so that coolant and oil passages can be thoroughly flushed.
A. Expansion and thread plugs.
B. Main bearing caps.
C. Cylinder head dowels.
D. Camshaft bearings.

Answer 2

A. Expansion and thread plugs.

Question 3

During cylinder block cleaning do not contact \_\_\_\_\_\_\_\_\_\_\_\_\_ with high pressure, steam or water.'
A. Machined surfaces.
B. Aluminum components. 
C. Oil passages.
D. Any part of your body or skin.

Answer 3

D. Any part of your body or skin.

Question 4

Dye check is a method of crack detection that:
A. Can be used on all types of materials.
B. Is restricted to use on ferrous metals.
C. Can be used on painted surfaces.
D. Shows up under black light.

Answer 4

A. Can be used on all types of materials.

Question 5

Before reusing components that have been tested using the magnetic particle or magnaflux method, it is necessary to:
A. Allow a 24 hour waiting period.
B. Back up the test results using dye penetrant.
C. Clean the components thoroughly to remove test materials.
D. Allow the components to cool.

Answer 5

C. Clean the components thoroughly to remove test materials.

Question 6

When pressure testing a cylinder block it should be immersed in hot water to:
A. Clean and degrease cracked areas.
B. Allow expansion of the cylinder block
C. Reduce the air pressure needed for the test.
D. Seal Gaskets and O rings.

Answer 6

B. Allow expansion of the cylinder block.

Question 7

The machined surfaces of the cylinder block should be checked for flatness using:
___________ and _________

Answer 7

Straight edge and feeler gauge

Question 8

Stripped threads in the cylinder block casting are most commonly repaired using:
A. self threading fasteners
B. Locktite
C. larger capscrews
D. Helicoils or solid thread inserts

Answer 8

D. helicoils or solid thread inserts

Question 9

Main bearing bores that are misaligned could cause:
A. Excessive cylinder wear.
B. Excessive bearing wear.
C. A broken crankshaft.
D. Both B and C

Answer 9

D. Both B and C

Question 10

Installing the main bearing caps backwards or in the wrong position in the cylinder block will cause:
A. Incorrect bolt torque
B. Oil leakage
C. misalignment of the bearing bores.
D. cylinder bore distortion

Answer 10

C. Misalignment of the bearing bores

Question 11

Main bearing bores should be measured to determine:
A.
B.
C.

Answer 11

A. Maximum outside dimension
B. Out of round
C. Taper

Question 12

Machining the cylinder block deck surface to correct for warpage will:
A. Reduce the compression ratio.
B. Increase the distance between the crankshaft centerline and block deck.
C. Decrease the distance between the crankshaft centerline and block deck.
D. Decrease the distance between the crankshaft and the camshaft (cam in block).

Answer 12

C. Decrease the distance between the crankshaft centerline and block deck.

Question 13

The majority of cylinder warpage occurs at:
A. top of ring travel, 90 degrees to the crank shaft centerline.
B. Bottom of ring travel, 90 degrees to the crankshaft centerline.
C. Top of ring travel, inline with the crankshaft.
D. Bottom or ring travel, inline with the crankshaft.

Answer 13

A. Top of ring travel, 90 degrees to the crankshaft centerline.

Question 14

During the inspection of a cylinder block, the measured taper of the cylinder bores is 0.009". The correct oversize to rebore the cylinder block would be:
A. 0.010"
B. 0.020"
C. 0,030"
D. 0.060"

Answer 14

B. 0.020”

Question 15

When reconditioning a cylinder bore, a de glazing hone can be used to:
A. Remove cylinder wall crosshatch.
B. Remove cylinder bore taper.
C. Remove cylinder wall out of round.
D. Restore cylinder wall crosshatch.

Answer 15

D. Restore cylinder wall crosshatch.

Question 16

After honing or deglazing cylinder bores, they should be thoroughly cleaned using:
A. Petroleum solvents.
B. Light Machine Oil
C. Hot water and a wire brush.
D. Hot water, detergent, and a stiff bristle brush.

Answer 16

D. Hot water, detergent, and a stiff bristle brush.

Question 17

List the two precautions that are necessary when using a screw type linear puller.
A._____________
B._____________

Answer 17

A. Ensure the shoe fits the bottom of the linear correctly will not catch the block on removal.
B. Do not position the bridge assembly over holes in, or weak areas, of the block deck surface.

Question 18

To prevent distortion after removal from the cylinder block, liners should be stored:
A. Horizontally on Vee blocks.
B. vertically 
C. with a light coat of oil. 
D. In a cool dry atmosphere.

Answer 18

B. Vertically

Question 19

Wet liner counter bores should be visually inspected for:
A. Corrosion, depth and scoring.
B. Crosshatch, diameter and chamfer.
C. Cracks, erosion and signs of coolant leakage.
D. Pitting, flatness and signs of cavitation.

Answer 19

C. cracks, erosion, and signs of coolant leakage.

Question 20

Liner cavitation would be best described as:
A. Scoring of the cylinder wall.
B. A buildup of corrosion on the outer surface of a wet liner.
C. Pitting on the outer surface of a wet liner.
D. A lack of cooling system maintenance.

Answer 20

C. pitting on the outer surface of a wet liner.

Question 21

Calculate the installed height of a liner using the following measurement:
Counter bore depth 0.439”
Liner flange thickness 0.441”
Shim thickness 0.003”

Answer 21

0.005”

Question 22

During the inspection of a cylinder block, all the counterbores have depth measurements that vary 0.004” The correct service procedure would be to:
A. Bore the block for an oversized liner.
B. Machine the counterbores and use shims to restore liner height.
C. Re-use block as is, the measurements are acceptable.
D. Install the liners using silicone sealant.

Answer 22

B. Machine the counterbores and use shims to restore liner height.

Question 23

Dry liners which fit the block with too much clearance can be repaired by:
A. Shimming the liners to obtain the correct fit.
B. Chilling the block before liner installation.
C. Heating the liners before installation in the block.
D. Boring or honing the block for oversized liners.

Answer 23

D. Boring or honing the block for oversized liners.

Question 24

Seal rings on a wet liner that roll or twist on during installation can cause:
A. Distortion of the liner bore.
B. Leaking head gaskets.
C. Reduced liner height.
D. Poor heat transfer.

Answer 24

A. Distortion of the liner bore.

Question 25

Wet liner seal rings should be lubricated with:
A. With engine oil.
B. Just before installation on the liner.
C. Just before liner installation.
D. With silicone sealant.

Answer 25

C. Just before liner installation.