So far it seems as though we fixed the leak from the fitting. Now there is a leak coming from the top of the oil feed line...if the fitting hole is too small, could this be causing too much pressure and forcing it through the top of the oil feed line.

This is what the fitting hole looks like which is a lot smaller than the original one

 

Drilled the hole out just a little to match the old fitting.

Here is how we sit now. It goes gasket then the flange with the fitting obviously sitting in the middle of it screwed all the way down in the flange.

The oil only leaks from the top part of the oil feed line (the screw on part) NOT the fitting. How was I able to pull the motor and put it back together but can't fix a stupid oil leak...

 

So we put some teflon tape on the top and that seems to have stopped the leak from the oil feed line.

There is still smoke coming from there but it looks as though the turbo blanket has absorbed the oil that originally was leaking and it is burning off. I'm going to drive it around and see if the oil burns off. If it isn't getting any better, the only thing I can do is take off the blanket and see if it still smokes.

 

So I worked on the car today and the problem is FINALLY fixed...knock on wood. I could still see some oil seeping through and it was still smoking so I went ahead and took the turbo blanket off and this is what I saw...





From the look of it, the oil that was leaking was being soaked up by the blanket and then sitting on the turbo causing even more smoke.

I went ahead and redid the flange/fitting mating

Here are the parts




Home-made flange, home-made gasket from gasket material, two bolts, fitting and an o-ring.

I wrapped the fitting with teflon tape and screwed it down tight into the fitting with the o-ring seated



I then bolted it to the turbo and then screwed the fitting down even more to make sure it was tight and sealing. Tightened the bolts one more time and put the oil feed line on.

Started the car and checked for leaks/smoke. There was still a little smoke from the old oil that was still there but I took the car for a 5-10 minute drive and came home and shut the car off. This is usually where you'll see all the smoke and there was no smoke! I checked the fitting for leaks and no oil, all dry.

Now how do I get all the oil out of the turbo blanket so I can put it back on without it smoking?

 

Hard Hitter,
Remove the second restrictor in the CHRA using a #10 screw.
This will allow the new fitting to be installed deeper in the tapered thread (it does not install to the flange).
Use loctite thread sealant. If a small piece of teflon tape gets in hole you will be very sad.
Barry

 

This stuff makes me want to take my turbo oil piping, take them to a machine shop, and have them machine in half-dovetail o-ring grooves. No more of those stupid Mazda gaskets that leak and the dovetail will keep the o-rings from falling out. Add viton o-rings and life is good.

 

Ugh, drove it another 10-20 miles last night and there is a very slight oil leak still.

Barry, don't you need the restrictor?

 

Your flange looks much better. Where is your oil coming from right now?

To get the oil out of the turbo insulation you can soak it in some laquer thinner, carb cleaner, or brake cleaner (basically a nice solvent). Make sure to let it dry completely, as it is quite flammable. You can get this stuff at your local parts store or walmart.

Option 1 - it is coming from the fitting/flange joint (this seems most likely to me)
The fitting you have isn't really meant to be used as you are using it. I would use a copper or aluminum washer, perhaps with an o-ring under it for good measure. If you use the o-ring put a chamfer on the inside of where the fitting threads in to help the o-ring squish out less.

Option 2 - you are leaking from the elbow/fitting connection
It is possible that the angle of the fittings aren't the same. AN fittings have a very specific angle, and there are a few other angles that your stuff could be. Doesn't matter so long as they match.

 

First of all, thank you for your response. The oil is not coming out of the AN fitting anymore, I think like you said, it was because it wasn't at a specific angle as the fitting in the turbo so there was a leak from that. That is now fixed.

When I look at the oil, it seems as though it is coming out from the bolt. It doesn't seem to be coming out from around the fitting in the turbo which is where it used to come out. I don't know if this is a gasket issue or not because as you can see, I do have a rubber o-ring on the bottom of the fitting that goes into the turbo.

I'm getting pretty close to just purchasing these:

http://www.aptuning.net/Oil_Feed_Fla...tp-fla-020.htm

Or would I use one of these and use my fitting that I have now

http://www.aptuning.net/Aluminum_Oil...tp-fla-008.htm

And using this as the gasket

http://www.aptuning.net/Oil_inlet_fe...ia-gsk-011.htm

I don't understand what this "no restrictor" type business is though.

 

You are finally seeing the light on getting the correct adapter.... I think godfella suggested that way back on post #6... I would suggest the first style you listed, being one piece it has one less place to leak...

Also pay attention to what barry is saying about the teflon tape. If a piece of that gets stuck in the tiny restrictor hole and you will have insufficient oil flow to your turbo and it will be cooked...

 

I'm going to end up buying this:

http://www.aptuning.net/Oil_Feed_Fla...tp-fla-020.htm
http://www.aptuning.net/Oil_inlet_fe...ia-gsk-011.htm

If this doesn't fix my leak problem then I really have no idea what to do. As far as the restrictor, #1 what piece is the restrictor? And #2 is a restrictor needed? Will purchasing those 2 parts above be ok or are there other things I'm going to need to purchase? I'm pretty sure the oil feed line is a -4 male fitting. Anyway to confirm this?

 

That flange is what you need. In the long run you will be happier.

Not to be obvious, but I suggest going back to whomever made your turbo feed line to determine if it is a -4 fitting. You can usually do a visual check by pulling the outer nut back and seeing if the angles match on your fitting, but i think your bend prevents this.

 

Yes, You have it in your hand.
Barry

 

Barry, so what's the difference between the restrictor that I'm holding and then purchasing this flange:

http://www.aptuning.net/Oil_Feed_Fla...tp-fla-020.htm

As you can see the old restrictor's hole is a lot bigger than the one shown in your quote above:



From what it looks like, the flange from APtuning looks like my original restrictor so I should be good to go on purchasing that correct?

 

Here is a video I just took so you can see what I'm talking about.

I'm wondering if it's just the gasket material that it just soaks up the oil and letting it run out like that. As you can see it seems to be coming mainly from the bolt and a little around the resistor.

http://www.youtube.com/watch?v=81uOZCtysQk

 

HH,
The restrictor fitting is used to drop the amount of oil that the turbo"sees" or it will be flooded with too much oil and smoke.

You were originally using two restrictors in-line. One fitting appears to be about .030" and the other about .060". You need only one. The one in the turbo oil inlet boss is the proper size.

The fitting in the ATP link that you show will work fine.

Barry

 

Thanks Barry, I understand now. So most of the time, the CHRA doesn't come with a restrictor sitting inside which is why they use the fitting that screws into the CHRA?

Anyway, I ordered these last night:

http://www.aptuning.net/Oil_Feed_Fla...tp-fla-020.htm
http://www.aptuning.net/Oil_inlet_fe...ia-gsk-011.htm

So I'm hoping this will fix my problem. I will update you guys when I get them in.