Car stil smokes after new turbo

[jwahl16]

Ok here's my story (sorry for the long post):

My 95 elcipse was smoking really bad out of the exhaust (burning oil, not coolant) under boost, and some at idle. After researching i figured the turbo was blown. I took that out, there was oil in my intercooler, and pipes. The t25 had huge shaft play, and the blades were chipped due hitting the housing. I just spent a bunch of money on a big 16g, intake and 3" o2 housing with dump tube. I put all of this in and took it for a test drive, but i am still having similiar symptoms! It doesn't smoke as much under boost, but it is still a considerable amount. It isn't noticeable when i first start the car, but it is when i pull in my driveway after my drive and let it idle then. I know there shouldn't be this much smoke, and i am getting fed up with it. Someone told me it could be piston rings, what do you all think?

I am almost tempted to try and sell it and buy another dsm...

Help me out,
Thanks.

 

[#40Fan]

If there is still oil in the exhaust and IC piping, it will take a while before it all clears. Did you take apart your IC piping and clean it all out?

 

[jwahl16]

yes i cleaned everything out (execept the exhaust). The smoke increases as i boost though, and dies down a little bit afterwards, but still stays on pretty thick. How much oil is usually in the exhaust?

 

[LiquidX]

It could be rings, valve seals or a good bit of oil getting sucked up from your IC piping. Did you clean all of your pipes and the IC when you replaced the turbo? If it's not smoking as bad, that's a good sign. Do a compression and leak down test if it doesn't get better.

 

[jwahl16]

I'll do a compression test once i can get out my door (theres like 8 inches of snow and counting right now). If i just let my car idle for like an hour or something, would that get a majority of the oil out of my exhaust?

 

[toofast82]

If there was a lot of oil in the exhaust, it may take some time to burn off.
You may be feeding excessive oil pressure to the turbo. You should be oiling from the head on a b16g!
Was it a new turbo? If its used, it could be a bad one?
or:

You could have bad piston rings or valve seals, etc.
Start with a compression test to get an idea of the overall health of the engine.

 

[jwahl16]

i have a stainless oil feed line, coming from the oil filter housing. How do i feed it from the head? and what do i do to plug the filter housing.

 

[toofast82]

i have a stainless oil feed line, coming from the oil filter housing. How do i feed it from the head? and what do i do to plug the filter housing.

Sounds like that could be your problem. Excessive pressure
There's a bolt in the side of the head, passenger side by the thermostat.
Try and find a good pic of a stock 1g feed from the head and you'll get the idea.
You can just put a pipe plug for whatever size the threads are on the filter housing

 

[jwahl16]

ok, what size is the head hole? The OFH is 3/8" and i think my oil feed is -4 AN.

Also, can anyone else back this up? Should i run my big 16g off the head instead of the oil filter housing?

Thanks for the help.

 

[toofast82]

ok, what size is the head hole? The OFH is 3/8" and i think my oil feed is -4 AN.

Also, can anyone else back this up? Should i run my big 16g off the head instead of the oil filter housing?

Thanks for the help.

http://www.slowboyracing.com/product.php?productid=1919&cat=1050&page=1
Slowboy Racing, Inc. :: Mitsubishi :: DSM :: Turbos :: Installation Accessories :: General Accessories :: 10mm Banjo Bolt Adapter to -4AN Male

Feeding from the cylinder head on MHI turbos is proven on every 1g turbo that rolled off the factory line.
The lower oil pressure that the head has versus the filter housing is ideal for the requirements of the mhi cartridges. Too much pressure will cause oil to get past the turbine seal on the turbo causing smoke. If you don't remedy the situation soon, you will mess the turbo up
There is also a restrictor used in the 2g feed to lower the pressure some for the t25.
You can try tuning different restrictors on your ss feed line from the filter housing. But that would require a gauge and probably more trouble than its worth.

 

[redyute1]

There probably is still oil in the exhaust that needs to burn out,take her out on a nice drive and see what happens,freeway off boost.

 

[gsx7707]

you problably have excessive blowby due to rings or busted pistons.went through the same thing only to tear my motor down and find 3 busted pistons car still ran strong just smoked.goodluck

 

[fstfcs]

Feed from the head first.

To eliminate the possibility of running excessive oil pressure. Also while you do it might be good to install a needle valve. Lets you control the flow of oil to the turbo.

Had to run one on my focus when i was running a holset. Took me a couple tries but after i dialed it in she stopped smoking.

After you have done these steps return and let us know if it is still smoking.

Also if you keep your current oil line setup but install a needle valve you can still turn down the flow to what it should be.

 

[jwahl16]

hmm ok, do you have any links to how to install something like this?

 

[fstfcs]

You need one similar to this.

You must be logged in to view this image or video.

Not that exact one. Call some local hardware stores to find a decent brass one. It needs to be male one side female on the other. Make sure you fine one that will fit both your male oil filter housing and your female oil line. They come in dozen of sizes.

If you don't have an oil pressure gauge now may be a very good time to invest in one. When you install it it's like installing any other fitting. I always use plumbers tape (teflon tape) and make sure it secures on both sides meaning the needle valve itself and the line.

then just turn the piece that adjusts the amount of flow accordingly. So that the oil isn't pushing god awful amounts like it probably is right now.

Hopefully you can get it to stop smoking by doing this.

When i first installed my holset i had a TERRIBLE smoking problem. Put on a needle valve adjusted it. Viola no more smoke.

 

[jwahl16]

i just did a compression test and it checked out fine (182, 180, 175, 180) The smoke may actually be coolant now

It smells a little sweet, i can still have a blown head gasket with good compression right?

 

[quiksilver20004]

Did you do a leak down test when you did the compression test? Also if you have your vent-line from your valvecover run into your intake (like it usually is) then you could have a bad pvc valve. So when you hit boost it is forcing pressure into your valve cover and blowing oil into your intake and throughout your piping. I also had an issue just like this. My car would smoke bad when i let it sit and when i boosted but if i stayed in boost it would go away. I pulled the head off and my valve seals had taken a crap.

I have a big 16g and have been running the oil feed line from the oil pump housing ever since i have had it. I have never had a single problem with this turbo due to oil pressure. This may be due to the fact that i imported a special rebuild kit for it from japan.

 

[jwahl16]

I have a filter/catch can running from the VC to my intake, and i havn't seen any oil in that. I havn't done a leak down test yet, i'm going to take it for another test drive when i get the chance.

Yea, the t-25 is fed from the same spot so I don't think it would cause that much of an issue right away.

Thanks for the help

 

[GSTTOBEAT]

I had the same thing happen with my turbo and it had a lot of oil left inside of the exhaust. All you can do is drive it for a long distance to burn off the oil or replace the exhaust system. I cleaned my cat back out with brake cleaner and removed the cat completely. If you still have the cat on there the oil is probably clogging it and soaked into it. That may be the main contributor to the smoke.

 

[jwahl16]

I also have a lot of oil residue in my exhaust ports where the exhaust manifold meets the head. That is a symptom of bad valve seals right?

 

[quiksilver20004]

Yes that should be valvestem seals. Check your intake manifold and see if there is oil residue in it.

 

[rhodess89]

do a compression test and for your rings, your valve seal could be bad so let it run for about ten minutes idle and then turn the car off let it sit for about 10 then crank it up again big puff of smoke should shoot out if its valve seals, also check your pcv valve that too sometimes creates smoke take it out and shake it up and down if you can here it rattle inside more than likely its not getting stuck, always refer to the basics.