Mercedes Benz Om 444 La 12v Engine Instant
Marine OM 444 LAs frequently operate at low load (harbor maneuvering). This causes the turbo bearings to coke up from unburnt fuel. Solution: Run engine at high RPM for 10 minutes before shutdown ("turbo cool-down").
The 12-cylinder engine has complex torsional vibrations. The rubber-bonded crankshaft damper at the front of the engine dries out and separates. If ignored, it can snap the crankshaft—a financially catastrophic event. Inspect: Look for rubber cracks every 1,000 hours. mercedes benz om 444 la 12v engine
Robustness: The heavy internal components are over-engineered, allowing the engine to survive "thermal shock" and varied fuel quality better than many of its contemporaries. Marine OM 444 LAs frequently operate at low