seals in a turbo 1g

[turbodreams27]

if the seals in the turbo are bad, would it make it smoke? after it sits an idels for a few minutes it smokes very bad.

 

[yokotabrat]

Yes, but the symptoms you are describing usually indicate bad valve stem seals. Does the turbo have any excessive shaft play? Is the compressor wheel rubbing on the compressor housing? Is there a heavy oil coat on all the intercooler pipes? If there is no play and no excessive oil in the pipes, there's a good chance the turbo is fine.

 

[turbodreams27]

im not really sure im thinkin of buying the car an i havent drove it yet or anything. ill be back at home wednesday im in vegas right now so i havent seen the car, an im a newbie im just starting out i on these motors so i have no clue what half of that is but ill ask around an figure it out. so u think the turbo still could be good an its the motor that is messed up?

 

[yokotabrat]

To check for turbo shaft play, remove the intake piping from the turbo and grab the nut that attaches the compressor wheel to the shaft in your index and thumb finger and try to move the compressor wheel up/down as well as in/out. It should have a little play up/down, but none in the in/out direction. Also stick your head down there and make sure the wheel hasn't rubbed against the housing. You'll notice a difference in the metal if it has. There would also probably be a few chunks of the compressor wheel missing. If there is no shaft play, chances are good the turbo is fine.

Valve stem seals are a common problem on older dsms. I believe there are even tech articles on how to replace them with the cylinder head on the car, though the best way is to pull the cylinder head to check for damage to the guides as well. All they do is seal the stem of the valve so that oil cannot enter the combustion chamber. When they go bad, oil leaks down the stem and then gets burned.

Hope this helps.

 

[turbodreams27]

thanks alot guy's