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Old 05-29-2012, 10:00 AM   #1
BrandonDrums
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My turbo oil feed line cracked 2 weeks ago spilling oil all over the turbo area of the engine compartment. I got a new line on there but apparently the oil starvation to the turbo after the breakage blew both (both!) oil seals on my blouch 16g.

Ironically, I was already planning to upgrade my turbo so I had a blouch 18g-xt on order. Oil had spewed from the blown turbo into the intercooler, dripped down into the uppipe and back into the downpipe a whole lot. I know only the turbos oil seals went, the bearing is surprisingly intact and there are NO flakes in the oil and I flushed the system 2x anyway.

However, despite my efforts I know I couldn't clean out all the oil from the intake, ic and exhaust so my question is, how long will it take to burn off the old oil?

Notes* I have put a very conservative base map on for the new turbo and injectors. Running wastegate boost and pulled timing over 1.2 g/sec load for the break in/burn off period.

2005 wrx wagon
DW 850cc topfeeds
Engine is swapped for a ej257 with forged pistons only 15k miles and tuned conservatively, max 19 psi with a 16g
Sti ic
Catless up and down pipes
3 port ebcs with hybrid boost control

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Old 05-29-2012, 12:10 PM   #2
BrandonDrums
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Oh well, hopefully not 1k miles like some of the other guys I found.
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Old 05-29-2012, 12:30 PM   #3
going4speed
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You could take the intercooler to a radiator shop and have them hot tank it. Oil gone at that point. As for the intake and the rest of the tract I would say a couple of heat cycles and a 100 miles and it should be clean as a whistle. Also an AOS would help a ton.
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Old 05-29-2012, 12:41 PM   #4
SomeCanadianGuy
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I am also having the same problem. I hope... I was actually just about to post the exact same thing! I think my fmic is packed with oil on my 04 sti... The longer I boost the more smoke billows out. I've driven it around 300-400 miles and it's still doing it. Plus oil is getting into everything! Coming out my bov and coating my o2 sensor causing a lean error code. Such an annoyance! I don't think it'd last this long. Thought I could just burn it off within a hundred miles or so. Looks like I'm dismantling and taking the fmic to a rad shop :S
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Old 05-29-2012, 01:10 PM   #5
BrandonDrums
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Quote:
Originally Posted by going4speed View Post
You could take the intercooler to a radiator shop and have them hot tank it. Oil gone at that point. As for the intake and the rest of the tract I would say a couple of heat cycles and a 100 miles and it should be clean as a whistle. Also an AOS would help a ton.
Not a bad idea, I still have the OEM TMIC so I'll pop that back on tonight since I still need to drive it around.

As for the AOS, I do have a catch can installed but being that the additional oil is being ingested vs. blowing by I haven't noticed any additional oil in the can than usual.

I think my other issue is the turboback. I went out to my car over lunch and noticed a trail of oil in my exhaust tip. I have a glass pack resonator in the mid pipe and a 3'' straight through muffler. Both of those units probably got soaked in oil and being that it's fluffy fiberglass it would be impossible to clean I imagine.

I need to swap the IC, rinse the turbo back and clean the headers tonight. It's downright embarrassing to drive that thing right now lol.

Quote:
Originally Posted by SomeCanadianGuy View Post
I am also having the same problem. I hope... I was actually just about to post the exact same thing! I think my fmic is packed with oil on my 04 sti... The longer I boost the more smoke billows out. I've driven it around 300-400 miles and it's still doing it. Plus oil is getting into everything! Coming out my bov and coating my o2 sensor causing a lean error code. Such an annoyance! I don't think it'd last this long. Thought I could just burn it off within a hundred miles or so. Looks like I'm dismantling and taking the fmic to a rad shop :S
That sucks! There is just so much surface area in IC's that oil coats all of it and it takes so much time for all of it to make its way into the intake. Not only that, being a FMIC, you'd have to push so much oil up the long intake pipe to finally get it out and every time you let the car cool, the oil condenses again and pools on the bottom. I wouldn't imagine an FMIC would let you live that down lol.

I let my TMIC drain for like a week but there was STILL oil pooling on the bottom when I went to put it on last night. It's just too damn viscous to come out all at once.
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Old 05-29-2012, 01:25 PM   #6
SomeCanadianGuy
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Ha ya and it's SUPER embarrassing blowing huge wafts of smoke on decel directed at the guy driving behind you! I feel like an idiot every time... Are you gonna clean your exhaust too? Can that be done at home? My cat back is pretty much black lol
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Old 05-29-2012, 01:29 PM   #7
SomeCanadianGuy
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I was thinking of soaking the muffler, downpipe, etc in some diesel. Think that'd be the best way to go about it?
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Old 05-29-2012, 05:07 PM   #8
BrandonDrums
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Not too sure what I'm going to do but I feel like I have do something. I'm at least cleaning the IC tonight. If I get a chance, I'll take off the turbo back and headers and simple green/engine degrease the crap out of them.

The only think I feel compelled to use a straight up fuel on is the IC, I'll just use gasoline on that since I have some in the garage.

The other reason besides being embarrassed to clean it up, having lots of oil in the combustion chamber lowers the octane of the fuel mix a good bit. Combine that with extra carbon deposits and your detonation threshold drops tremendously. Any boost and you could really get a knock event large enough to do some damage.

I'm doubly embarrassed because of the smoke from the oil residue and coolant residue in the engine bay AND I re-wrapped my up-pipe with new fiberglass wrap which ALSO smokes like no tomorrow for like 2 days as it bakes off the crud.

I feel like I'm driving the Cheech and Chong mobile. Now to drive home without my co-workers seeing me lol.
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Old 05-29-2012, 07:19 PM   #9
SomeCanadianGuy
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This is one of the only times I've wished my IC was a top mount!! This is gonna take a while...
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Old 05-29-2012, 10:32 PM   #10
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Let me know how the cleaning goes!
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Old 02-28-2013, 04:03 PM   #11
BrandonDrums
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I thought I'd give an update. The crack in the oil line was only part of the issue, the other part was a piece of weld schwag from the up-pipe got loose and lodged itself into the turbine wheel locking the turbo up and letting all of the oil back up and blow past the seals. This happened AFTER the crack in the oil line took place. Apparently my up-pipe who a local shop had welded up for me when it cracked originally during a small accident got jostled and cracked again when I was replacing the oil feed tube.

So I put a new up-pipe on the car and completely rebuilt the turbo with all new internals which was really completely fine aside from the damaged turbine wheel.

I taped up the ends of my intercooler and filled it with gasoline and the flushed it several times with degreaser and hot water. I cleaned the exhaust with degreaser and lots of pressure washer spray and degreased the crap out of the area around the turbo.

Everything is fine now. That is until my engine spun a rod bearing many months later in an unrelated issue.
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Old 02-28-2013, 05:00 PM   #12
singularity88
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That's how I'd have done it. Cheap, easy, and works. Could do the same for the mani but it's a pita to remove. If you have any buddies with a meth injection setup they'd let you borrow, that should do a nice job :-) Probably make it even cleaner than before.
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Old 02-28-2013, 06:26 PM   #13
BrandonDrums
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Yeah, I didn't go that far last summer when all of this happened. I really was cleaning the IC as a precaution. Most of the oil was in the exhaust. When I had the intake mani off a month ago I checked it and it was actually completely clean so that's a dodged bullet there.

My exhaust is much louder though, the oil in the muffler and the glass pack resonator really hurt the sound dampening and never quite burned off. Oh well, eventually ill get a whole new exhaust.
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