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Old 10-02-2012, 01:11 PM   #1
Lminette
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Default Turbo seals on a stored turbo

So here's the deal I bought a used TD04 off of craigslist and according to the seller the turbo was removed from the 2002 WRX when the car was virtually new. So ostensibly the turbo has been in storage for about 10 years. That being said does anybody know if being stored or this length of time could dry out the seals? Last thing I want to do is send this one out to get ported and polished, bolt it on and see the same problems I'm having now.

A little background, so my 2005 Saabaru with 102k has been loosing oil. Problem was first noticed after driving to Gorman, CA from Anaheim, CA. This drive features some steep grades and I was doing 75-80 so always staying in boost. For some reason I decided to check my oil in Gorman and nothing was registering on the dipstick. So before heading home I added a quart which still did not register on the dipstick and drove home. The next day when filling up at the gas station to go to work I added two more quarts which brought it to full. Over the last month I've made the conscious effort to check the oil regularly to monitor the burning and after 1000 miles I had to add another quart.

This passed Friday I did a complete oil change with Rotella T6 synthetic and Lucas Oil Synthetic Stabilizer as I had to make a 700+ mile round trip drive to Mammoth. I drove the whole 700 miles with the cruise set at 65 and did not burn any oil and averaged 30.85 mpg for the entire trip. Having kept the car out of boost this seems to narrow down the problem in my eyes to the turbo. Thoughts anyone? Thanks in advance!

Louie
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Old 10-02-2012, 02:08 PM   #2
Lminette
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So called up Turbo City and they gave me my answer. The seals are metal so there is no problem with a turbo sitting for that long. What do you guys think of my diagnosis of it being the turbo?
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Old 10-02-2012, 02:47 PM   #3
rdieder
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No one knows or has a crystal ball

drop your downpipe and check the back of your turbo to find out if it is the source. Pull the intercooler off to see if its puddling in there, maybe its lost from blowby.
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Old 10-02-2012, 03:32 PM   #4
Lminette
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Yeah I plan to do that. Just wanted to gauge opinions.
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Old 10-02-2012, 03:52 PM   #5
Concillian
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I'd suspect the PCV / breather system before the turbo, but it could be either.

PCV / breather system can cause oil pressure in the turbo return line to be high, which can push oil through turbo seals, so even PCV system issues can LOOK like turbo oil issues.
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Old 10-02-2012, 04:07 PM   #6
Lminette
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Thanks Concillian! I bought the PCV as that was one of my thoughts as well however I was unsure if the PCV could cause that much consumption. I plan to replace that this weekend and go from there.
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