2.0L LSJ Performance Tech 205hp Supercharged SS tuner version. 200 lb-ft of torque.

blown turbo or bad oil rings?

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Old 05-30-2008, 08:28 AM
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blown turbo or bad oil rings?

well im blowing alot of blue smoke out of my exhaust i did a compression test and i had good compression all throughout the engine so my next step before another complete teardown is to test the turbo for a blown seal on the exhaust side.....does anyone know how to go about doing this?
Old 05-30-2008, 09:26 AM
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Do a leakdown test as that will be a better judge for the engine diagnosis. Since you just did the motor and probably are still breaking it in, I doubt it's that. I'd be willing to bet your turbo is the culprit especially if something went through it when you blew the motor.
Old 05-30-2008, 11:20 AM
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i dont know cause i used the stock oil rings like it said in the book and i did a leak down test as well but thats not really a good way to see anyway cause it still is only testing compression. but how can i test the turbo to see if i killed it

bump to keep it up top i need help with this haha

Last edited by *TRIX*; 05-30-2008 at 11:20 AM. Reason: Automerged Doublepost
Old 05-30-2008, 11:28 AM
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Either way you'll be taking the turbo and manifold off. Once the exhaust manifold is off you'll be able to tell if its the turbo seals or rings.
Old 05-30-2008, 11:43 AM
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are you sure ill be able to see the internal seals on the turbo cause i thought id have to take it apart to see the internal seal of the exhaust side housing on the turbo
Old 05-30-2008, 11:44 AM
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Originally Posted by *TRIX*
are you sure ill be able to see the internal seals on the turbo cause i thought id have to take it apart to see the internal seal of the exhaust side housing on the turbo
If its the oil rings you'll see one of your exhaust ports being fairly wet.
Old 05-30-2008, 11:48 AM
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bro what did u do now....get that thing running right and tear up these streets with bcp..lol
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