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-   DIY Turbo Discussion (https://www.miataturbo.net/diy-turbo-discussion-14/)
-   -   Oil in the IC piping (https://www.miataturbo.net/diy-turbo-discussion-14/oil-ic-piping-60836/)

redturbomiata 10-03-2011 06:49 PM

Oil in the IC piping
 
So i opened the piping to install my HKS SSQV and found some oil in the Intercooler piping. I dont think its good, what causes it and how do i fix it. its a greddy kit.

Joe Perez 10-03-2011 06:54 PM

Generally speaking, there are two potential causes.

One is that the shaft seals on your turbo are allowing oil to leak from the center housing into the compressor.

The other is that you have your crankcase ventilation system plumbed in such a way as to permit oil vapor to be drawn from the crankcase into the intake tract.

redturbomiata 10-03-2011 07:00 PM


Originally Posted by Joe Perez (Post 779159)
Generally speaking, there are two potential causes.

One is that the shaft seals on your turbo are allowing oil to leak from the center housing into the compressor.

The other is that you have your crankcase ventilation system plumbed in such a way as to permit oil vapor to be drawn from the crankcase into the intake tract.

the crankcase is vented to atmosphere. so the seals are probably the cause. ideas on the fix

Joe Perez 10-03-2011 07:16 PM


Originally Posted by redturbomiata (Post 779162)
so the seals are probably the cause. ideas on the fix

Idea: replace seals.

flounder 10-03-2011 07:26 PM


Originally Posted by Joe Perez (Post 779165)
Idea: replace seals.

GENIUS!!:idea:

redturbomiata 10-03-2011 07:30 PM

do they just sell the seals. all i see is rebuild kits.

Joe Perez 10-03-2011 07:51 PM


Originally Posted by redturbomiata (Post 779169)
do they just sell the seals. all i see is rebuild kits.

Well, you could try Seals-Я-Us, Seal Depot, the Crate & Seal, Seal's Club, or perhaps Gap Seal.

Or maybe since the seals are gone, it's time for a rebuild kit anyway.

midpack 10-06-2011 09:56 PM


Originally Posted by Joe Perez (Post 779173)
Well, you could try Seals-Я-Us, Seal Depot, the Crate & Seal, Seal's Club, or perhaps Gap Seal.

Or maybe since the seals are gone, it's time for a rebuild kit anyway.

I was not happy with the service from Seal's Club. Their all-in-one club is really only good for baby seals despite being advertised for momma & papa too.

18psi 10-06-2011 10:01 PM

I rodered my seals straight from seals-n-shit.
Great seals, and you get a discount on the shit.

GeneSplicer 10-06-2011 10:10 PM

Fur real - get it rebuild or buy a new one... www.workturbochargers.com

Tell tell him Bryan referred you to recieved a 20% discount on your very own seal.

IHI 10-07-2011 04:20 PM

I heard "Navy Seals" are superb.

Faeflora 10-08-2011 02:46 PM

1 Attachment(s)
https://www.miataturbo.net/attachmen...ine=1318099585

jaredef 10-08-2011 03:41 PM

this noob lol'd

IHI 10-10-2011 02:42 PM

1 Attachment(s)
https://www.miataturbo.net/attachmen...ine=1318272128

doolie 10-10-2011 02:47 PM

i would recommend seeing if an oil catch can will take care of that issue before you go replacing shaft seals. begi has a really nice oil catch can that doesn't have vacuum leaks like a large majority of them.

IHI 10-10-2011 02:49 PM

1 Attachment(s)
https://www.miataturbo.net/attachmen...ine=1318272559


I think I have found the cause of your failing seal:

http://4.bp.blogspot.com/_35kDzNt-gT...n+ur+sealz.jpg

fastivab6tg25mr 10-10-2011 03:34 PM

awesome...

redturbomiata 10-10-2011 08:26 PM

alright i had that coming, need rephrase what i say better. but im going to hold off for a week or two and enjoy the rest of the season, and rebuild it over the winter. before you say it i checked a little more and the leak is not to bad. i already check the oil regularly so its no big deal.

Joe Perez 10-10-2011 11:57 PM

A third option, which I failed to mention earlier, is that your drain line is not allowing oil to flow freely and it is thus being pumped through the seals.

I just noticed that you are running a Greddy kit, and if you are using the oil-return solution which came standard with those systems (a long-ass piece of rubber hose which you're meant to run all the way around the engine to the intake side) it's entirely possible that this line may be kinked, crushed, running uphill, etc.

redturbomiata 10-11-2011 06:22 AM


Originally Posted by Joe Perez (Post 782058)
A third option, which I failed to mention earlier, is that your drain line is not allowing oil to flow freely and it is thus being pumped through the seals.

I just noticed that you are running a Greddy kit, and if you are using the oil-return solution which came standard with those systems (a long-ass piece of rubber hose which you're meant to run all the way around the engine to the intake side) it's entirely possible that this line may be kinked, crushed, running uphill, etc.

yea i think it is running up about an inch or 2. i wish i would have done the work, would have done it much better than the PO

Joe Perez 10-11-2011 12:30 PM

Well, that's certainly worth a try.

Personally, the physics don't quite make sense (an inch or two of rise should not create a tremendous pressure differential) however others seem to feel that this can cause a serious problem, and I'll admit that I don't have much experience with poorly-installed oil drain lines, as I have never installed one poorly. :D

redturbomiata 10-11-2011 12:43 PM


Originally Posted by Joe Perez (Post 782226)
Well, that's certainly worth a try.

Personally, the physics don't quite make sense (an inch or two of rise should not create a tremendous pressure differential) however others seem to feel that this can cause a serious problem, and I'll admit that I don't have much experience with poorly-installed oil drain lines, as I have never installed one poorly. :D

personal if i would have installed it, i wouldnt have ran it a crossed the front of the car to near the oil filter. i would have hit somewhere underneath the manifold. but i dont feel like pulling the oilpan off to fix the issue.

Joe Perez 10-11-2011 01:30 PM


Originally Posted by redturbomiata (Post 782233)
but i dont feel like pulling the oilpan off to fix the issue.

If by "fix the issue" you mean "install a fitting on the side of the oil pan beneath the turbo", there's no need to remove the oil pan for this.

I would posit that at least 90% of us (and probably much more) have installed this fitting in situ. The instructions for both Bell and FM turbos direct the installer to drill a hole in the pan and thread it for the return fitting without removing it from the engine, using a combination of grease and a post-machine flushing to remove shavings from the pan.

It's scary, and you will obviously end up with a few aluminum shavings left in the pan. But that's why you have a screen on the oil pickup tube and an oil filter just after the pump.

redturbomiata 10-11-2011 01:47 PM

i know im capable of doing it i just dont enjoy having unnecessary holes in the pan so i would replace the entire thing. i know you can plug it but im not a huge fan of plugs more to go wrong.


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