Turbo 119773-18010

Function and technical context

The RHE62 turbocharger (ref. 119773-18010) is the component responsible for compressing the intake air before it enters the cylinders of the marine diesel engine, taking advantage of the energy of the exhaust gases to drive its turbine. It works in the engine's supercharging system, being a central element that allows increasing the density of the air in the combustion chamber and, thereby, extracting maximum power and torque from the block. Its correct operation is essential to maintain the performance of the engine: a deteriorated turbocharger causes severe loss of power, increased diesel consumption, black or bluish smoke from the exhaust and, in advanced cases, risk of internal damage to the engine due to incomplete combustion or lack of chamber cooling. This turbo corresponds to section 9 of the official Yanmar breakdown (callout 1) for the 6LP family, with one unit per engine.

When to replace this part?

The most common symptoms of a bad turbocharger are: noticeable loss of engine thrust or response at full load, unusual whistling or rattling coming from the turbo, presence of oil in the intake manifold or air filter, and excessive smoke from the exhaust pipe. It is recommended to inspect the turbocharger during each major seasonal maintenance, checking the axial and radial play of the shaft, the condition of the bearings and the absence of oil leaks in the seals. Replacing the turbocharger at the first signs of wear prevents chain failures that can render the engine unusable while sailing and lead to very expensive repairs.