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Can a turbo on a 6.9 chevy diesel leak oil into the air intake?

Teroy asked:


Would this make the rig smoke? Is there a seal or something in the turbo?

This entry was posted on Thursday, July 16th, 2009 at 10:03 pm and is filed under Chevy Diesel. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.

One Response to “Can a turbo on a 6.9 chevy diesel leak oil into the air intake?”

1. diesel tech on July 16th, 2009 at 11:16 pm

   check the turbo
   it has a oil passage in it to lube the bearing
   if the seal goes bad it can leak oil in the intake
   or even worse start to run on the oil and the engine rev out of control (”engine over speed” or ‘run away” are common terms to describe this condition)
   also check the crank case breather , i believe the return goes onto the intake as well
   this will be a tube form one of the valve covers to the intake if your model has it

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