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HET 2 (AIT 1902xx) > 190201c > Flashcards

Flashcards in 190201c Deck (25)
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1
Q

What type of cleaners should NOT be used on aluminum components?

A

Caustic solutions

2
Q

In a cylinder block overhaul, what should be removed so coolant and oil passages can be thoroughly flushed?

A

Expansion and threaded plugs

3
Q

During cylinder block cleaning, what should NOT come in contact with high pressure steam or water?

A

Any part of your body/skin

4
Q

DYE CHECK is a method of crack detection that is used on what materials?

A

It can be used on all types of metals

5
Q

Before the components that have been tested using the magnetic particle/magnaflux method, it is necessary to:

A

Clean the components thoroughly to remove any test materials

6
Q

When pressure testing a cylinder block, it should be immersed in hot water to:

A

Allow expansion of the cylinder block

7
Q

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

A

A straight edge and feeler gauge

8
Q

The most common fix for stripped threads in a cylinder block is:

A

Helicoils or (solid) threaded inserts

9
Q

Main bearing bores that are misaligned could cause:

A

Excessive bearing wear and a broken crankshaft

10
Q

Main bearing bores should be measured to determine what three issues?

A

1) Out of round
2) Max wear
3) Taper

11
Q

Machining the cylinder block deck surface to correct for warpage will:

A

Decrease the distance between the crankshaft centerline and the block deck

12
Q

Installing the main bearing caps backwards, or in the wrong position, on the cylinder block will cause:

A

Misalignment of the bearing bores

13
Q

The majority of the cylinder wear occurs at:

A

The top of ring travel, 90° to the crankshaft centerline

14
Q

During the inspection of a cylinder block, the measured taper of the cylinder bores is 0.009”. The correct oversized liner size would be:

A

0.020” - as you double the taper size and use the next largest oversize available

15
Q

When reconditioning a cylinder bore, a de-glazing hone can be used to:

A

Restore cylinder wall crosshatch

16
Q

After honing cylinder bores, they should be thoroughly cleaned using:

A

Hot water, soap, and a stiff bristle brush

17
Q

The two precautions that are necessary when using a screw type liner puller are:

A

1) the bottom is fastened correctly and will not hit the block upon removal
2) Do not position the assembly over holes/weak areas of the block surface

18
Q

To prevent distortion after removal from the cylinder block, liners should be stored:

A

Vertically

19
Q

Wet liner counterbores should be visually inspected for:

A

Cracks, erosion, and signs of coolant leakage

20
Q

Liner cavitation would be best described as:

A

Pitting on the outer surface of a wet liner

21
Q

What is the installed height for the following liner when:

  • counterbore depth is - 0.439”
  • liner flange thickness is - 0.441”
  • shim thickness is - 0.003”
A

Installed height is 0.005”

22
Q

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

Machine the counterbores and use shims to restore liner height

23
Q

Dry liners which fit the block with too much clearance can be repaired by:

A

Boring or honing the block for oversized liners

24
Q

Seal rings on a wet liner that roll or twist during installation can cause:

A

Distortion of the liner bore

25
Q

Wet liner seal rings should be lubricated:

A

Just before liner installation