Unfortunate Engine Damage: Nissan 5L Cummins Rebuild

🔧The engine damage was caused by a spun main bearing, which has led to additional issues.

💸A complete long block replacement from Nissan costs $23,000, not including labor and additional parts.

🚚The owner noticed oil leakage and an increase in crankcase pressure, leading to the discovery of the engine damage.

🔍Opening the oil filter revealed metallic particles, indicating bearing wear and potential damage throughout the engine.

⏱️The engine was used for only 40,000 miles, indicating that the damage may be due to manufacturing or design issues.

What causes a spun main bearing?

—A spun main bearing can be caused by excessive wear, lack of lubrication, or improper installation. It can result in severe engine damage.

How much does a complete long block replacement from Nissan cost?

—A complete long block from Nissan for the 5L Cummins engine costs $23,000, excluding labor and additional components.

Can the damaged block be repaired?

—If the main bearing caps are still usable, it may be possible to repair the block by installing custom billet caps. Otherwise, a replacement block may be necessary.

What are the potential consequences of driving with a spun main bearing?

—Continued driving with a spun main bearing can lead to further damage to the engine, increased oil consumption, loss of oil pressure, and potentially catastrophic engine failure.

Is engine damage covered by warranty?

—The warranty coverage for engine damage depends on the specific warranty terms provided by the manufacturer or dealership. It is best to consult the warranty documentation or contact the manufacturer for further information.

00:00The video showcases engine damage in a Nissan 5L Cummins, with a spun main bearing being the primary issue.

01:00The engine exhibits oil leakage and excessive crankcase pressure, indicative of underlying problems.

01:45Opening the oil filter reveals metallic particles, suggesting bearing wear and potential further damage.

02:41The long block replacement cost from Nissan is mentioned, emphasizing the potential expenses involved in repairing the engine.

06:44The engine is lifted and inspected, showcasing the damage caused by the spun main bearing.

09:25The engine teardown continues, revealing more issues and potentially making the block irreparable.

11:32The potential need for custom billet caps or a replacement block is discussed.

11:45The video concludes with the decision to rebuild the engine or find a replacement core.