Chapter 2 Flashcards
Which of the following should not be used to clean aluminum components?
Hot tank
If a cylinder block is being cleaned for overhaul, _____ should be removed so that coolant and oil passages can be thoroughly flushed.
expansion and threaded plugs
During cylinder block cleaning do not contact _______ with high pressure, steam or water.
any part of you body or skin
Dye check is a method of leak detection that:
can be used on all types of materials
Before reusing components that have been tested using the magnetic particle or magnaflux method, it is necessary to:
Lean components thoroughly to removed test materials.
When pressure testing a cylinder block, it should be immersed in hot water to:
Allow expansion of the cylinder block.
The machined surfaces of the cylinder block should be checked for flatness using:
Straight edge
feeler gauge
Stripped threads in the cylinder block casting are most commonly repaired using:
helicoils or solid thread inserts
Main bearing bores that are misaligned could cause:
Excessive bearing wear
Broken crankshaft
Installing the main bearing caps backwards or in the wrong position in the cylinder block will cause:
Misalignment of the bearing bores
Main bearing bores should be measured to determine:
Maximum inside dimension
Out of round
Taper
Machining the cylinder block deck surface to correct for warpage will:
Decrease the distance between the crankshaft centerline and the block deck.
The majority of cylinder wear occurs at:
Top of ring travel, 90 degrees to the crankshaft centerline
During the inspection of the cylinder block, the measured taper of the cylinder bores is 0.009” The correct oversized to rebore the cylinder block would be:
0.020”
When reconditioning a cylinder bore, a de-glazing hone can be used to:
Restore cylinder wall crosshatch.
After honing or deglazing cylinder bores, they should be thoroughly cleaned using:
Hot water detergent and a stiff bristle brush
List the two precautions that are necessary when using a screw type liner puller:
Ensure the shoe fits the bottom of the liner correctly and will not catch the block on removal.
Do not position the bridge assembly over holes in, or weak areas, of the block deck surface.
To prevent distortion after removal from the cylinder block, liners should be stored:
Vertically
Wet liner counterbores should be visually inspected for:
Cracks, erosion and signs of coolant leakage.
Liner Cavitation would be best described as:
Pitting on the outer surface of a wet liner.
Calculate the installed height of a liner using the following measurements:
Counterbore depth 0.439”
Liner flange thickness 0.441”
Shim Thickness 0.003”
0.005”
During the inspection of the cylinder block, all of the counterbores have depth measurements that vary 0.004” The correct service procedure would be to:
Machine the counterbores and use shims to restore liner height.
Dry liners which fit the block with too much clearance can be repaired by:
Boring or honing the block for oversized liners.
Seal rings on a wet liner that roll or twist on installation can cause:
Distortion of the liner bore.
