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Possible turbo is bad

Tiny
JASON CARDWELL
  • MEMBER
  • 2009 MAZDA 3
  • 2.3L
  • 4 CYL
  • TURBO
  • 2WD
  • MANUAL
  • 53,000 MILES
Exhaust started to smoke, no oil in car. Have been told the impeller in turbo has excessive play. Is this likely to be cause of oil loss?
Tuesday, July 9th, 2019 AT 12:22 PM

3 Replies

Tiny
SCGRANTURISMO
  • MECHANIC
  • 4,897 POSTS
Hello,

If you have excessive blue smoke pouring out of your exhaust and you suspect it's the turbo then it is probably your output shaft seal that has failed. This could be caused by excessive play in your output shaft bearings(the high speed bearings). Turbos are fairly simple, they have an input shaft(which is driven by exhaust) with a large gear attached to it that drives a smaller gear attached to the output shaft which has a compressor wheel. It is the compressor wheel that compresses the air before it enters the engine's combustion chamber Each shaft is housed in the turbo body which shares the engines oil supply and each shaft has a lip seal to hold in the oil. The output shaft seal has probably failed. Please get back to us with what you are able to find out.

Thanks,
Alex
2CarPros
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Tuesday, July 9th, 2019 AT 10:59 PM
Tiny
JASON CARDWELL
  • MEMBER
  • 2 POSTS
Thank you. Exactly right just had a new turbo fitted by Mazda. Keep up the good work.
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Saturday, July 20th, 2019 AT 10:00 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
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SCWICKEDSTANG is one of our best! Use 2CarPros anytime, we are here to help. Please tell a friend.
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Monday, July 22nd, 2019 AT 6:38 PM

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