Podcast
Questions and Answers
What is the primary cause of crankshaft failures?
What is the primary cause of crankshaft failures?
- Incorrect loading or lubrication problems (correct)
- Materials used in construction
- Poor maintenance of the engine
- Normal wear and tear of the engine
What can excessive bending loads on a crankshaft cause?
What can excessive bending loads on a crankshaft cause?
- Increased engine performance
- Improved lubrication
- Crankshaft breakage (correct)
- Reduced engine noise
What is a common cause of bending loads on a crankshaft?
What is a common cause of bending loads on a crankshaft?
- Faulty spark plugs
- Misalignment of the main bearing bores (correct)
- Worn-out piston rings
- Clogged air filter
What type of load is most likely to cause a break in the connecting rod journal area?
What type of load is most likely to cause a break in the connecting rod journal area?
What is a potential consequence of running with excessive clearance in the bearings?
What is a potential consequence of running with excessive clearance in the bearings?
Why is it important to perform a close inspection after a crankshaft failure?
Why is it important to perform a close inspection after a crankshaft failure?
What is the primary cause of the wiping action that wears the surface of the bearing?
What is the primary cause of the wiping action that wears the surface of the bearing?
What is the primary cause of acid formation in the lubricating oil?
What is the primary cause of acid formation in the lubricating oil?
What is the primary effect of fuel dilution on the engine oil?
What is the primary effect of fuel dilution on the engine oil?
What is the primary cause of corrosive damage to the bearings?
What is the primary cause of corrosive damage to the bearings?
What is the primary cause of metal fatigue in the bearings?
What is the primary cause of metal fatigue in the bearings?
What is the primary effect of coolant contamination on the bearings?
What is the primary effect of coolant contamination on the bearings?
What is a common cause of crankshaft failure due to machining practices?
What is a common cause of crankshaft failure due to machining practices?
What is the recommended minimum undersize for crankshaft journals?
What is the recommended minimum undersize for crankshaft journals?
What is a consequence of a lack of lubrication on crankshaft journals?
What is a consequence of a lack of lubrication on crankshaft journals?
What is a common source of contamination in the lubricating oil?
What is a common source of contamination in the lubricating oil?
What is a characteristic of normal bearing wear?
What is a characteristic of normal bearing wear?
What is a consequence of contaminated lubricating oil?
What is a consequence of contaminated lubricating oil?
What is a cause of bearing failure?
What is a cause of bearing failure?
What is a consequence of a lack of lubrication on bearings?
What is a consequence of a lack of lubrication on bearings?
What is a source of foreign material in the lubricating oil?
What is a source of foreign material in the lubricating oil?
What is a characteristic of bearing damage due to foreign particle contamination?
What is a characteristic of bearing damage due to foreign particle contamination?
