2006 Subaru Legacy

Engine Performance problem
2006 Subaru Legacy 4 cyl All Wheel Drive Automatic 70k miles

The 30 day warranty just expired and the turbo went. The dealer replaced it and when I asked if the turbo going would have any negative effect on the engine itself, I was told no. After this, I asked another mechanic and he said the motor should be taken apart and cleaned because when the turbo went it sent debris throughout the engine. He also said if this wasn't done I should expect my motor to go soon. What's the truth?
June 7, 2010.

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