Block and Liner Service

Question 1

Hot tanks should not be used to clean

Answer 1

Aluminum components

Question 2

3 methods of crack detection

Answer 2

Dye check
Magnetic particle
Fluorescent Magnetic Particle (Magnaflux)

Question 3

Bores can be measured using:

Answer 3

1. Dial bore gauge
2. Inside micrometer
3. telescoping gauge and outside micrometer

Question 4

Bores are measured for what

Answer 4

Out of round
max diameter
taper

Question 5

What are 2 forms if crack repair

Answer 5

Welding

Stitching

Question 6

Thread Repair

Answer 6

Drill and tap hole to next size
Helicoil Inserts
Solid inserts

Question 7

Purpose of a ridge reamer

Answer 7

Remove the ridge created by wear at the top of the ring travel

Question 8

When the piston is forced against the cylinder wall on the power stroke, this wear is known as the:

Answer 8

Major thrust side

Opposite side of the cylinder that that the crank throw is on

Question 9

When the piston is forced against the cylinder wall on the compression stroke, this wear is known as the:

Answer 9

Minor thrust side

Opposite side of the cylinder that that the crank throw is on

Question 10

Wear in the cylinder will be the greatest…

Answer 10

At the top of ring travel because the rings and wall are subject to greatest heat and least amount of lubrication

Question 11

a minimum of how many measurements must be taken to determine cylinder wear?

Answer 11

4

Question 12

Cylinders should be visually inspected for?

Answer 12

Cracks
Scoring
Discoloration

Question 13

Standard piston oversizes?

Answer 13

0. 010
1. 020
2. 030

Question 14

how do you determine the necessary oversize when boing…

Answer 14

Double taper wear and use next largest piston oversize available

Question 15

Ideal crosshatch angle

Answer 15

40 to 60 degrees

Question 16

Rate of movement when honing a cylinder

Answer 16

300-400 RPM, one vertical stroke per second

Question 17

Main bearing bores that are misaligned could cause?

Answer 17

Excessive bearing wear

Broken crankshaft

Question 18

The majority of cylinder wear occurs at?

Answer 18

top of ring travel, 90 degree to crankshaft center line

Question 19

What are the 2 Safety precautions that are necessary when using a screw type liner puller?

Answer 19

1. Ensure the shoe fits into the bottom of liner correctly and will not catch block
2. Bridge is not placed over any weak areas, or holes in block

Question 20

Wet liner seal rings should be lubricated?

Answer 20

Just before liner installation