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420A Needing Turbo Oil Feed Photos...

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InfiniteGSX

20+ Year Contributor
3,183
15
Dec 10, 2002
Tijeras, New Mexico
I have the intercooler kit, T3-T4 Turbo, about to order a new one or buy a used manifold and I found an oil return line kit... but I need photos of the entire oil line setup... where are you guys taping into to get the oil feed from the block to the turbo.... cause the return line is easy, just from the turbo to the oil pan. So can I get some photos. This is going on one of my budget builds. Not My car.
 
Here is a picture taken behind my block where the feed line assembly goes..

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THis is the oil pan/return line. You need to weld a fitting in for this line to hook up and return the oil from your turbo back into the pan.
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Look on the turbo. You'll see two SS line running from the turbo. The smaller line is the feed line. This is connected to the assembly in the 1st pic above.. The larger line is the return line which goes back to the oil pan.
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Whatever you do dont go with that many fittings. The brass is known to break due to stress while your driving. You can imagine the headaches.

I dont have a picture of mine but since you cant buy my fitting its not useful anyhow. I have the star fitting and for the life of me cant find a source to buy another.

Here is a list of what you need for the bare essentials.

1/2 NPT T-union
1/2 npt X 1" male union
1/2 npt - 1/8 npt adapter (threaded bushing)

Now for some reason I am thinking this should be 3/8NPT but is too small if i recall correctly.

The Male union will thread into the t-union on one of the straight sides. Then thread the oil sender into the opposite end. Use tephlon paste for sealing. Thread into block and tighten. Now as you tighten you want to position the t-fitting so the middle oriface is pointing up towards the intake. Now in that last threaded oriface, thread the 1/2npt - 1/8 npt fitting into it and tighten.

Now in the 1/8npt thread you can thread your adapter for your feed line. Its either 3an or 4an - 1/8 NPT.

Hope this helps a bit

Terry
 
Blitz, I thought the oil feed and return secton of the turbo (don't remember the name) was suppose to be straight up and down, not slanted like it is in your pic.

Also, what size fitting did you get for you oil pan, 10 AN?
 
totaleclipse_05 said:
Blitz, I thought the oil feed and return secton of the turbo (don't remember the name) was suppose to be straight up and down, not slanted like it is in your pic.

Also, what size fitting did you get for you oil pan, 10 AN?

Yeah that's actually a concern of mine too. I was thinking it may cause the seals to go prematuraly if it is slanted like mine. It's more of a 45 degree angle. Probably less than that. I could clock the housing but my wastegate tucked down there may not move up anymore.

Does anyone else think that may be a major problem??

Yes that's a 10AN. What size did you use?
 
I ran 8an.

You can clock the center section without affecting the wastegate. As far as a problem, you will know when it becomes one.

Terry
 
Talon ESI-T said:
As did I.

Talon ESI-T said:
You can clock the center section without affecting the wastegate. As far as a problem, you will know when it becomes one.

I did this too. With MHI turbos (possibly with Garretts too, I don't know), there's a little pin on the mid-section that ensures it properly aligns with the exhaust housing. Rather than shaving off the pin, I just drilled another small hole in the exhaust housing to accept it.
 
By the way, here are a few diagrams of how to set up the oil feed line. They used to be in another thread, but were lost after the new server went online.
 

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The feature has been temporarily disabled for everyone other than Mods/Wisemen. I don't know when/if it'll come back.
 
It is 3/8np then. For some reason i kept leaning back and forth on the size.
 
Okay, so will it become a mojor problem or what? I'd rather prevent it then let it happen and here you say, "told you so." Try helping me avoid it if you know the problem will in fact occur. I would say it will prematuraly wear the seals but I'm not sure how bad or how much. It's not at a horizontal angle, morely 45 degrees... Please throw some input at me... I need to consider a worst case scenario and fix the problem.. thanks again guys. :thumb:
 
I don't think it would have much of an effect on the seals, however, given that the oil return line is gravity fed, you it to be as close to vertical as possible.
 
A different version. Factory sender, brass T and Teflon paste on the threads.


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AZDAVE- I really like that oil feed set-up, but it looks like you have no oil pressure gauge. Is this true?
 
I could use my oil pressure gauge I have thats just sittin in my car if I got a 4way split huh? how much extra oil needs to be put into the car?
 
Blitzeclips said:
AZDAVE- I really like that oil feed set-up, but it looks like you have no oil pressure gauge. Is this true?

Don't you see it...Right there, not in the picture?! :|

InfiniteGSX said:
I could use my oil pressure gauge I have thats just sittin in my car if I got a 4way split huh? how much extra oil needs to be put into the car?

Maybe a tablespoon worth? :p Kidding, of course. You really don't need to add more.. The extra space that needs to be taken up by adding an aftermarket OP gauge isn't anything to worry about. In all honesty I would suggest just eliminating the stock oil pressure sending unit and putting your aftermarket gauge in it's place. The stock unit ends up going out and annoying you, more than anything else.
 
DSMcrazy3 said:
Don't you see it...Right there, not in the picture?! :|

No I sure don't. I see a feed line and the OEM oil sending sensor, NOTHING for an aftermarket gauge..

Like I said. :|
 
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