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-   -   Oily black sludge (https://rennlist.com/forums/991-turbo/1090030-oily-black-sludge.html)

aft86 08-12-2018 11:23 PM

Oily black sludge
 
Hi all,
Wondering if anyone has had this issue or knows what is causing this symptom.
The other day as I was doing the oil change I noticed that, what I believe is, the intercooler pressure hose on the passenger's side had some black oily sludge on it. I wiped pretty clean, reached up as far as I could.
A few days and miles later, I checked it again and I now see a thin coat of an oil substance coming from the top side closest to the intercooler. The drivers side is dry and clean as a whistle!
Does anyone know what this is relating to? I plan on investigating further in a few weeks once I get under there to do the spark plugs and coils.

This is on a 2014 Turbo S with a GIAC tune and an Armytrix exhaust.

https://cimg0.ibsrv.net/gimg/rennlis...1f334c34b1.jpg

hcvone 08-13-2018 08:38 AM

My buddy found this on his 14' several weeks ago, was going in for service so he had them look at it, the dealership claimed it was from his giac tune that caused extra boost and that caused the issue, "making the pipe weep oil as that called it", of course that was total BS, he ordered a new pipe, believe it was 69 dollars, that had dual seals on it, looks like an updated design, but upon removing the leaking pipe it appeared the seal was MISSING, this caused the issue, but since he had the new pipe he replaced it and end of problem. Not sure if that's your issue but sure looks the same

aft86 08-13-2018 02:27 PM


Originally Posted by hcvone (Post 15211538)
My buddy found this on his 14' several weeks ago, was going in for service so he had them look at it, the dealership claimed it was from his giac tune that caused extra boost and that caused the issue, "making the pipe weep oil as that called it", of course that was total BS, he ordered a new pipe, believe it was 69 dollars, that had dual seals on it, looks like an updated design, but upon removing the leaking pipe it appeared the seal was MISSING, this caused the issue, but since he had the new pipe he replaced it and end of problem. Not sure if that's your issue but sure looks the same

Ah thank you for the info! I will take a look soon before buying the pipe, maybe I just need to adjust it or check for the missing seal.

Also, if it's not too much to ask, just in case, do you know the part # your friend ordered?
Is it 991-110-626-71 and maybe 999-512-349-01 for the clamp, if needed?

wutangmo15 08-16-2018 01:50 PM

Are you referring to this? My driver side also doesn't have it. https://cimg9.ibsrv.net/gimg/rennlis...30ba5565ec.jpg

aft86 08-16-2018 03:00 PM


Originally Posted by wutangmo15 (Post 15220948)
Are you referring to this? My driver side also doesn't have it.

Yes, same thing, this is how mine was at first. I cleaned it and checked on it a few drives later to make sure where the leak was coming from.

I will try to investigate soon, once the weather here in NY permits, while I do the spark plugs and coils. Hopefully it is what hcvone said - just the pipe or pipe fittings/seals. The pipe itself is $68+$3 for the clamp on the other end and shipping from OEM Exotic Auto, so its not a bad fix.

What year is yours? And what exhaust/tune/mods do you have?

wutangmo15 08-16-2018 06:11 PM


Originally Posted by aft86 (Post 15221122)
What year is yours? And what exhaust/tune/mods do you have?

2014 w/ Boost Logic Titanium Exhaust and no cats. I'm using a tune provided by Sam but I doubt it is a tune issue.

aft86 08-24-2018 01:19 PM

Looks like it is just the pipe fittings that are faulty. Perhaps they're not made to withstand higher boost?

https://cimg4.ibsrv.net/gimg/rennlis...dc4bd85b8b.jpg
https://cimg7.ibsrv.net/gimg/rennlis...f3f1a5fd58.jpg

wutangmo15 08-24-2018 01:34 PM

So weird. Does that mean the driver side one is constructed differently?

aft86 08-26-2018 07:20 PM


Originally Posted by wutangmo15 (Post 15240519)
So weird. Does that mean the driver side one is constructed differently?

https://cimg1.ibsrv.net/gimg/rennlis...6d19b82a76.jpg

No, the parts seem to be the same on both sides. I am looking to see if anyone makes them tighter fittings, just for peace of mind.

aft86 10-01-2018 03:39 PM


Originally Posted by hcvone (Post 15211538)
My buddy found this on his 14' several weeks ago, was going in for service so he had them look at it, the dealership claimed it was from his giac tune that caused extra boost and that caused the issue, "making the pipe weep oil as that called it", of course that was total BS, he ordered a new pipe, believe it was 69 dollars, that had dual seals on it, looks like an updated design, but upon removing the leaking pipe it appeared the seal was MISSING, this caused the issue, but since he had the new pipe he replaced it and end of problem. Not sure if that's your issue but sure looks the same


Originally Posted by wutangmo15 (Post 15220948)
Are you referring to this? My driver side also doesn't have it.

UPDATE:
I replaced the hose a couple of weekends ago and after some spirited hard driving, no oil weeping as of yet. The hose did not have the seals on either end (turbo nor intercooler) as hcvone mentioned. I wonder if the hose did not have them to begin with or if someone forgot to slide them back on. Also, I don't know if it is me but the car feels more responsive now when I push it. I did the spark plugs and drive belt that day so I cannot attest that it is all due to the hose.


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