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Old 04-23-2015, 10:10 PM   #1
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Default Where is all my oil going?

So my turbo miata seems to have a massive oil addiction. Compression has always come back good but I was using like 2 quarts every 700 miles or less. My mechanic lent me his leak-down tester and I got terrible results, however I was wary that I wasn't using it properly so I had him check it as well. He said it was the best engine he's ever tested, less then 5% on all cylinders.

This leads me to my question, where is all my oil going? I have some seals that weep but I don't leak enough to leave puddles on the ground. Intercooler pipes are dry and the turbine outlet is also dry.

Am I missing something dumb? The car is all stock now (yearly inspection) and I plan to put some miles on it and see if the consumption is the same without the turbo.

The car smokes a lot with the turbo on as well. I think I have a rebuild kit laying around so I might put that on just because.

Any help would or ideas would be appreciated.

Thanks,
Patrick
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Old 04-24-2015, 12:28 AM   #2
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turbo seals probably dead. Are you running an oil restrictor?
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Old 04-24-2015, 02:33 AM   #3
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did you ever mess with the baffles in the valve cover?
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Old 04-25-2015, 10:34 PM   #4
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I think I gave my oil restrictor away, I had read that journal bearings shouldn't really need a restrictor and I had intended to rebuild my turbo when I got it. I actually have two of the same center sections and I think I swapped to my non-rebuilt one because of another issue I was having (was unrelated).

I've been rather busy lately but I'll try and tear the turbo apart tomorrow and see what I can see.
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