190201g Crankshaft, Bearings and Related Component Service

Question 1

List the 2 reasons for using proper lifting equipment

Answer 1

1. Prevent personal injury

2. Prevent component damage

Question 2

On the crankshaft flange minor grooves, less than ______- can usually be polished out for reuse.

Answer 2

0.010”

Question 3

If material is removed from the crankshaft journal what kind of bearing would need to be:

Answer 3

undersized bearing

Question 4

Torsional loads on a crankshaft can be attributed to:

Answer 4

excessive engine speed
excessive engine load
loose or damage damper
loose flywheel

Question 5

Torsional loads would likely cause the crankshaft to break in what area?

Answer 5

connecting rod journal

Question 6

Bearing failures will occur under these condition:

Answer 6

loss of oil film
contaminated oil
\excessive loading
improper installation

Question 7

crankshaft failures are usually the result of?

Answer 7

incorrect or excessive loading
incorrect service procedures
lubrication problems

Question 8

if a main or rod journal is scored or ridged you can remove material from the journal. but you must use a?

Answer 8

undersized bearing (bearing is not undersized but the journal is)