Frame, Block, and Cylinders Module

Question 1

You should check the machined surfaces of the cylinder block for flatness using what 2 measuring tools?

Answer 1

Straight Edge
Feeler gauge

Question 2

Misaligned main bearing bores could cause;

Answer 2

excessive bearing wear or a broken crankshaft

Question 3

True or False;
An underslung crank has the main bearing caps at the bottom of the crank.

Answer 3

True

Question 4

What should you not use to clean aluminium components?
- petroleum solvents
-steam cleaner
-hot caustic soak tank
-mechanical parts washer

Answer 4

hot caustic soak tank

Question 5

Identify 2 measuring tools that you would use in order to check the main bearing bores on an engine.

Answer 5

Inside micrometer
Dial bore gauge

Question 6

True or False;
You can repair cylinder liners on large engines by hard chroming and grinding to size.

Answer 6

True

Question 7

Why do you use alloy cast iron for engine block material?

Answer 7

The alloy cast iron is strong

Question 8

Why must the outside diameter of a dry liner fit the cylinder block bore correctly?

Answer 8

-To allow heat transfer from the liner to the block material
-To support the liner

Question 9

True or False;
Wet type liners are in direct contact with the coolant

Answer 9

True

Question 10

Leaking o-rings on a wet liner cause;

Answer 10

coolant to enter the crankcase

Question 11

When reconditioning a cylinder bore, you can use a de-glazing hone to;

Answer 11

restore cylinder wall crosshatch

Question 12

Identify 4 important checks that you must complete during a new cylinder liner install.

Answer 12

-Check cylinder ore for out of round, tapers, cracks
-Check all seal surfaces
-Check liner counterbore
-Check liner protrusion height