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      12-12-2019, 12:54 PM   #1
monsterbuck1974
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Rebuilt turbo concerns questions

So I got my stage 2 pure for my N55 and am concerned about the seating area of the wastegate flapper valve and the seating surface of the diverter valve. It is usually machined surfaces but the one I got both surfaces have been bead blasted. Should I be concerned about sealing or anything?
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      12-14-2019, 10:42 AM   #2
monsterbuck1974
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      12-28-2019, 11:49 AM   #3
houtan
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      01-09-2020, 06:10 PM   #4
austinaslink
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I imagine you figured this out by now, but there is no problem with the surfaces not being machined, no.

This is how Pure prepares their turbos, and hundreds of people are running them without issue. I just installed the same turbo on my 2011 N55 135i and there is no issue with the wastegate or diverter Valve sealing.
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