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Old 08-30-2013, 04:01 PM   #1
CJohn364
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Oil Getting Past Compressor

I'm totally at a loss with my car now. Here's a rundown on my setup:
2005 ZX4 SE
2.0L Duratec
FSWerks Stage II Turbo with a Garrett GT28RS
Cosworth imitation IM
Magnaflow 2.5 in Exhaust

A few months ago, my car started having issues with oil getting by the compressor. I thought maybe an oil seal in the turbo might be going out, so I scraped up the money to have the turbo rebuilt. I took everything apart, cleaned all the oil out of the piping and IC and put everything back together. I took it for a test drive and didn't go over 4lbs of boost. Double checked for leaks afterward and had the same oil leakage as before having the turbo rebuilt.

So now I'm thinking it's something other than the turbo. I've ran this setup for over three years with no issues. I use Penzoil synthetic 5W-20. I double and even triple checked the lines and nothing is obstructed or damaged. What else could cause oil to get by the compressor? Could it be the tuning is off. Could the inlet manifold be the issue? I'm totally lost.


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Old 08-30-2013, 04:39 PM   #2
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Could it be a bad valve seat or worn piston rings? I will look into doing a compression test.
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Old 08-30-2013, 05:13 PM   #3
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For the oil to get into the piping I wouldnt be thinking engine internals , your oil drain line you can take off and look through ? where it connects to the pan youcan see through the fitting and into the pan ? The fitting on the turbo to the drain line is free and open?

Who did the turbo rebuild ?

If you want to send a datalog I will be glad to look it over and rule that out , with air fuel in log

Tom
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Old 08-30-2013, 05:48 PM   #4
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I'm able to drain the oil with no issues. I can also disconnect the oil return line from turbo and oil will free flow into a pan.

The place that did the rebuild is Turbo Diesel & Electric Systems which is an authorized Garrett service and distributor. I got their information straight from the Garrett by Honeywell web site.

What kind of things do you want me to datalog? I know you tune differently than Randy does.
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Old 08-30-2013, 06:14 PM   #5
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If you want to give me a call in the AM I will help you with everything

Tom
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Old 08-30-2013, 07:34 PM   #6
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yea carl that sux I originally thought it was your seals as well, at least your turbos freshly rebuilt I guess for staying optimistic right? it cant be you running to much oil pressure that wouldn't be right...what size is your feed line? it could be possible its to big and is blowing through? or maybe your restrictor needs replacing? im almost thinking that, one of those two, but then again what do I know
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Old 08-31-2013, 06:35 AM   #7
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The feed line isn't very big. Just a bit smaller than the return line. I'm going to replace the restrictor and the return line just to see if that works. Maybe try a lighter weight oil.

Tom, I found a file in a thread a few months ago when this problem first occurred and downloaded it. I know how to set up the Livelink for it. The file is called:
Focus Power Duratec-log-list.cf3

I tried looking for the thread I found it in, but it looks like some things have changed on the site since I was last on. It's been a while.
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Old 08-31-2013, 08:38 AM   #8
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I wouldnt try a lighter oil you at 10-20 now , I would never run that low of any oil in a performance engine , I feel you should be at least a 30wt if not a 40 , I never run anything lower then a 50wt in mine

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Old 09-01-2013, 02:23 AM   #9
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10w 30 in mine and it runs fine and I believe I run a -3 feed and I know I run a -10 return
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Old 09-01-2013, 09:12 AM   #10
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Quote:
Originally Posted by ZXthrizzle05 View Post
10w 30 in mine and it runs fine and I believe I run a -3 feed and I know I run a -10 return
That sounds similar to what I have on my setup. Has anyone heard of this being caused by an inlet manifold or catch can issue?
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