Why Small Turbocharged Engines are a Failure: Nissan MR16DDT Teardown
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 Published On Aug 21, 2023

In this video a Nissan MR16DDT engine is torn down to see what's inside and how it works.

The Nissan MR engine is 1.6L 4 cylinder turbocharged engine that was designed with economy in mind. The engine in this video was from a 2014 Nissan Juke with 160,000 km on it and had a severe oil burning issue.

Smaller turbocharged engines make use of technologies such as turbocharging, exhaust gas recirculation (EGR) and direct injection to make more power out of what would otherwise be a gutless engine. These are compliance engines meant to achieve fuel economy standards, however at the sacrifice of longevity.

The failure of this engine was impart due to a lack of maintenance but also the design of the engine that has little tolerance for carbon buildup, oil starvation and tarnishing. Direct injection means the intake valves don't get cleaned, combine that with turbochargers, EGR and PCV systems and dynamic cooling systems that allow oil to enter the intake and these engines will start to fail prematurely.

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