Nissan 14411-01P01 Charger Assembly-Turbo

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The turbocharger, on the left exhaust manifold, compresses intake air from the air cleaner using two turbines. One turbine is turned by exhaust gases, which then turns the second turbine that compresses the intake air. An exhaust gas bypass valve prevents excessive supercharging pressure, opening at a set pressure to let exhaust gases bypass the turbocharger. An emergency relief valve is also included in the intake collector to relieve pressure. The turbocharger's emergency relief valve is attached to the intake collector. In 1985, water jackets were added to the turbocharger due to turbine bearing failures from extreme heat.

By loosening the rubber hose clamps and pulling the hose from the nipple.

Check for oil leaks at the lubricating oil passage connection.

The primary threat to the turbocharger is dirt and foreign objects. Even a small foreign object, like a nut, metal chip, or rock, passing through the turbine rotating at 120,000 rpm can cause significant damage. To defend against this, it's essential to clean the engine and turbocharger unit before working on it, cover all inlets and pipes, and meticulously account for every nut, bolt, screw, and washer before starting the engine after assembly is complete.