Exam 11: Crankshaft, Bearings, and Engine Balancing

Technician A says excessive drive belt tension can cause wear on the upper, front main bearing. Technician B says maintaining proper oil clearance and a lower viscosity oil will increase the fatigue life of a bearing. Who is right?

(Multiple Choice)

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(34)

Question 41

Technician A says that normal main bearing wear is on the top. Technician B says that worn lower main bearings can be caused by lugging the engine. Who is right?

(Multiple Choice)

4.8/5

(43)

Question 42

When there is less clearance, will a Plastigage reading be wider or narrower?

(Short Answer)

5.0/5

(39)

Question 43

Cast nodular iron crankshafts require extra care in grinding.

(True/False)

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Question 44

Undersize bearings have a thinner bearing back.

(True/False)

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Question 45

Showing 41 - 45 of 45

Technician A says excessive drive belt tension can cause wear on the upper, front main bearing. Technician B says maintaining proper oil clearance and a lower viscosity oil will increase the fatigue life of a bearing. Who is right?

Technician A says that normal main bearing wear is on the top. Technician B says that worn lower main bearings can be caused by lugging the engine. Who is right?

When there is less clearance, will a Plastigage reading be wider or narrower?

Cast nodular iron crankshafts require extra care in grinding.

Undersize bearings have a thinner bearing back.

Engine Operation

Engine Shop Safety

Diagnosing Engine Problems

Engine Removal, Disassembly, Inspection, and In-Chassis Repairs

Cleaning the Engine

Micrometer Practice

Cylinder Head: Parts and Service

Cylinder Head: Springs, Valves, and Valve Sets

Camshafts, Lifters, Timing Belts, and Chains

Cylinder Block: Inspection and Service

Pistons, Rings, and Connecting Rods

Lubrication

Cooling System

Engine Hardware: Fasteners, Thread Repair, and Gaskets

Reassembly and Starting

Engine Breathing: Intake and Exhaust Systems

Turbochargers and Superchargers

Producing Power: Valve Timing, Power and Torque Measurement

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