TwinTurbo.NET: Nissan 300ZX forum - You can inspect the turbo shaft play by removing
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Subject You can inspect the turbo shaft play by removing
     
Posted by SirpriZ on December 24, 2014 at 12:13 PM
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In Reply To Stock Turbo Longevity? How long do they last posted by MustBe300ZX on December 23, 2014 at 03:18 PM
     
Message the downpipes. There should be little to no front to back play. There is usually some side to side play. I forgot what the acceptable amount is to be considered within spec. You could call Jim Wolf Technology or ATP turbo, they can give you how much is considered OK (I wanna say it's .012 but that is a distant memory). Also, you could have your mechanic remove an intercooler pipe (preferably before the intercooler) and see if there is a significant coating of oil. A light film is expected, but a heavy coating could indicate oil being pushed past the turbo seal. As you can see there is a wide variation of how long these little suckers last. Good luck, Mark

     
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