Function and technical context

The turbocharger is the component responsible for forcing a greater amount of compressed air into the cylinders of the diesel engine, thus increasing the density of the air-fuel mixture and increasing the thermal performance of the assembly. It works directly in the intake and exhaust system: it takes advantage of the energy of the exhaust gases to drive its turbine and compress the intake air before it enters the manifold. In high-demand marine engines like the Volvo Penta TAD722VE, the turbo is critical to maintaining rated power and engine response under load; A deteriorated turbocharger immediately translates into loss of thrust, excessive fuel consumption and abnormal emissions. This turbo is manufactured by SLP (Swedish Lorry Parts), a Swedish specialist with extensive experience in components for Volvo Penta engines.

When to replace this part?

The most common symptoms of a bad turbocharger include blue or black smoke from the exhaust, noticeable loss of power or slow engine response when accelerating, abnormal oil consumption and high-pitched metallic noises or irregular whistling noises coming from the turbo during operation. It is recommended to inspect the turbocharger at each seasonal maintenance and check the axial play of the turbine shaft; Any excessive clearance or presence of oil in the intake manifold is indicative of internal wear. Replacing the turbo preventively at the first symptoms prevents secondary damage to the engine – such as oil contamination or valve damage – which entails significantly more expensive repairs.