Auto Service Professional

OCT 2018

Magazine for the auto service professional

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Page 43 of 69

42 A S P O c t o b e r 2 018 T u r b o S e r v i c e T i p s T Compiled by Mike Mavrigian Proper installation and maintenance is critical Turbochargers are essentially compressors that direct more air into the engine's cylinders in or- der to produce additional power. A turbo derives its energy source from both temp and pressure of exhaust gas. Intake air enters through the air cleaner into the turbo compressor inlet. e air is compressed which raises air density and volume. If the engine is equipped with an intercooler, the compressed air passes through the intercool- er before it enters the engine, to cool and further increase air density. e increase of dense air en- ters the fixed volume of the combustion cham- bers. e increase of the rate of airflow allows a higher fuel flow rate. Once the air/fuel charge is burned, the charge exits on the exhaust stroke into the exhaust man- ifold. e high-temperature exhaust gas then en- ters the turbocharger's turbine that in turn drives the turbo compressor, charging the intake air, continuing in a cycle that forces high density air into the engine, mixing with the correct amount of fuel to maintain a proper air/fuel ratio, pro- ducing more power. Typical operating speed of a small turbo can Turbocharger service tips

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