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      02-19-2022, 09:36 PM   #39
heitzke
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Drives: '15 M4 base, '04 Cobra
Join Date: Feb 2021
Location: Nashville

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Quote:
Originally Posted by JesseH234 View Post
Okay, perfect, that's good to know! I was already scheduled for an oil change on Tuesday, so I'll have the shop take a closer look then and see what they find.

Do they need to actually remove a turbo to see if there's some play in the rotating assembly? Or can they just "poke it with a stick" and see if it gives? (lol)

Earlier in this thread you included some photos of the backing plate of one of your turbos with oil residue on it. Was that taken with the turbo still in the engine bay, or after it was extracted?
In my case they didn't need to remove much to find something worth noting since it was that rear turbo. Just got to the downpipes and could see the back plate was all wet. If shaft play is present you can literally move the turbine or compressor wheel in/out with your hand. Side to side play is normal but there shouldn't be any in/out movement.

They said they checked the front one too and noted there wasn't shaft play present in that unit.
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