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Caterpillar Marine Diesel Smoke Problems

Caterpillar C12.9 marine diesel engine in engine room during smoke and combustion diagnosis inspection by 805 Marine Diesel Mechanic Ventura Channel Islands Harbor

Exhaust smoke from a Caterpillar marine diesel engine is one of the clearest signs that combustion is out of balance. This guide explains how to diagnose black smoke, white smoke, and blue smoke on Caterpillar marine engines by separating fuel delivery faults, airflow restrictions, turbocharger issues, oil-burning problems, cooling-related combustion changes, and deeper internal wear […]

Smoke Only Under Load.

Grand Banks yacht producing blue smoke while running during marine diesel diagnosis by 805 Marine Diesel Mechanic in Ventura California

Smoke Only Under Load If your marine diesel engine runs clean at idle but begins producing smoke when accelerating or under heavy load, the problem is usually related to airflow, turbo boost, fuel delivery balance, or excessive engine load rather than internal engine failure. At 805 Marine Diesel Mechanic, smoke that appears only under load […]