Function and technical context

The turbocharger is the component responsible for forcing a greater amount of air into the engine cylinders, increasing the density of the air-fuel mixture and, with it, the power and efficiency of the engine. It works within the intake and exhaust system: it takes advantage of the kinetic energy of the exhaust gases to drive a turbine that compresses the inlet air. In high displacement industrial and marine engines such as Volvo Penta's TWD, TD and TAD series, the turbo is a critical element to maintain rated performance; Its deterioration causes power drops, excessive fuel consumption, black smoke emissions and, in advanced cases, severe damage to the engine unit due to temperature and pressure out of range. This turbocharger is manufactured by SLP — Swedish Lorry Parts, a Swedish specialist with extensive experience in components for Volvo Penta engines, and is supplied with catalog references 470509, 5002779, 3802088, 3826911 and other equivalent manufacturer references.

When to replace this part?

The most common symptoms of a bad turbocharger include a noticeable loss of thrust or acceleration, bluish or black smoke from the exhaust, an abnormal metallic noise or whistling noise in the intake, and the presence of oil in the intake manifold or air filter. In continuous duty engines such as the TWD1210, TWD1211, TD121 and TAD1230/1231/1232 series, it is recommended to inspect the turbo at each seasonal check or every 1,000-2,000 hours of service, checking the axial and radial play of the shaft, the condition of the seals and the cleanliness of the oil passages. Replacing the turbocharger preventively at the first signs of wear prevents chain failures that can affect the cylinder head, injectors or engine block.