1.5L REVOTORQ ENGINE 78 No foreign particles (dust/dirt) should enter the vacuum line. Ensure the conditions of handling and installation of turbocharger/manifold are such that there is no risk of shocks, dropping the turbocharger or damage to the sealing surfaces (turbine housing inlet and outlet surfaces, compressor inlet and outlet, oil circuit), or damage to the actuator or flow adjusting rod and screw which might lead to the misalignment. If the turbocharger is dropped, then it should be inspected. If it is damaged, it should not be used. Put few drops of oil during assembly and rotate the wheel with finger. Look for free movement of wheel with no wheel rubbing. C. Catalytic Converter The Close Coupled Catalytic Converter is a critical element of the system used to reduce vehicle exhaust emissions. The catalytically active element within the converter lowers the activation energy needed to selectively transform harmful combustion products into less harmful gases. The catalyst becomes active when it reaches a threshold temperature. Close coupled Catalytic Converter is physically positioned very close to the engine exhaust ports to enable quicker light-off. It also enables flushing out of the carbon particles present in the Catalytic Converter. Benefits • Positioned close to the engine exhaust ports for fast light-off and reduced cold start emissions. • Robust construction offers excellent durability. • Internally insulated construction design enables improved durability, reduced heat rejection and lower noise. D. Silencer The main function of the silencer is to reduce the amount of noise emitted by the engine exhaust gases that flow out. It typically makes use of the change in the cross sectional area which can be made as a chamber to filter or reduce the sound waves which the engine produces. The silencers are divided into two main groups. i) Exhaust Pipe Assy. with Pre-silencer ii) Exhaust Assy., Rear (Main Silencer) The silencer is typically installed along the exhaust pipe as part of the exhaust system of the engine. It has a resonating chamber, which is specifically designed such that opposite sound waves collide to cancel each other out.
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