I'm going to remove my oil pan tonight and attempt to weld up the hole and redrill another as high as I possibly can. We'll see what happens after that.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TheIntegraGuy &raquo;</TD></TR><TR><TD CLASS="quote">No oil in my pressor or charge pipes..

I'm running an open DP and no signs of oil at all..

</TD></TR></TABLE>

It's hot in that downpipe... the reason the oil is smoking is because it has turned from liquid to gas... hehe. This is sometimes referred to as "combustion".

 

like stated above there will be no liquid oil in the DP... look for residue. Also have a buddy tack the car with you ouside looking under.. Oil pressure rises with RPM and will cause ( if this is the issue) the oil to press by the seal

 

Well, I finally took a look at my car really good since I had some free time yesterday. I work so much and I live so far from work that by the time I get home, it's pretty much time to sleep.

Anyway, I took some pictures of underneath the car and came up with this...

I think the oil return was kinked and possibly too much oil pressure as well...

I think it I shot the seals as you can see oil underneath the turbo by the turbo's oil return..





I know it's just a silicone line, but it's all I had at the time. If peopel can confirm that the seal has been shot, I will be upgrading to SS return lines when I replace the seal.. or possibly the damn turbo..

What do you guys think? ..

I'm going to try to wipe off the oil underneath the turbo because I'm unsure if it was from the previous owner.. and unkink the line to see if the seals are totally shot..



Modified by TheIntegraGuy at 12:38 PM 7/20/2005

 

Anyone?

 

oil return looks fine to me...

I vote for too much pressure, failing seals, or both.

 

So did you end up making the return line on the pan higher up? or is that the same position it has been?

 

It's in the same position..

It seems as if the oil line has a slight crease/kink in it but I won't be able to confirm that until I get home later on tonight.

i'm looking into an oil restrictor but I need one ASAP because it's the only car I have at the time. I'm currently using my sister's car to get to work..

Besides the oil under the turbo, would there be any other signs of a blown seal?

 

- make sure no kinks are in the oil return line
- make sure your return has a nice slop downward to the oil pan so it can flow with little restriction and wont puddle back to the turbo.
- make sure your turn from the turbo is higher than the part that is tapped in the oil pan, w/ a 3" hight differnce or so. more is somewhat better.

if you still have smoke than check your FMIC, inside of it make sure no oil is inside. (incase its your seals) Also like said before make sure you have plenty of ventilation, boosted cars need more due to extra blowby.

 

another side note is that the turbo has been sitting around for AT LEAST a month doing nothing. I'm not too sure how long exactly, but I bought the turbo used and from wht I know, it's been in a box for 30 days before I got it. Who knows how long it's been unused..

 

if you look in your intercooler you will see oil if its your turbo seal more than likely.

you can check if it is an return problem by doing this:

Ebrake up and sitting still, rev the car slowly to 5-6kish and hold and let off. do it slow and hold it at that rpm for a few seconds. you should see plenty of smoke if its the return.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JDM S1eeper &raquo;</TD></TR><TR><TD CLASS="quote">if you look in your intercooler you will see oil if its your turbo seal more than likely.

you can check if it is an return problem by doing this:

Ebrake up and sitting still, rev the car slowly to 5-6kish and hold and let off. do it slow and hold it at that rpm for a few seconds. you should see plenty of smoke if its the return. </TD></TR></TABLE>

So pretty much have it in neutral (sp?) and slowly reve it to 5-6k rpm, hold it and let off?

What if I do not see smoke?

 

yeah, that way if it is building up, it will.

if that doesnt work let us know so we can think of some more things

 

I've PM'd Dustin and he suggested that I'd look into oil retrictors, which can be the case. From what most people have said, my return line seems to be ok.

I'm going to look and see if it's possible to find some type of restrictor from a local automotive store or maybe even homedepot to test it out..

any suggestions?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TheIntegraGuy &raquo;</TD></TR><TR><TD CLASS="quote">I've PM'd Dustin and he suggested that I'd look into oil retrictors, which can be the case. From what most people have said, my return line seems to be ok.

I'm going to look and see if it's possible to find some type of restrictor from a local automotive store or maybe even homedepot to test it out..

any suggestions? </TD></TR></TABLE>

but did you try what i said? I'll atleast let you know if you have oil puddling back to teh turbo.

 

I was able to find parts at work to make my own restrictor from a Nitrous Express kit. The picture isn't the greatest because it was on my camera phone, but is the hole too big?

should I weld it shut and drill a 1/16" hole?

Here is the pic..



Thanks..

 

No that isnt too big. I'm running a 3/8ths solid copper feed line and has been fine with no problems for over a year.

It isnt too much the size of the feed as long as you have an efficent return. Smaller oil line or a lil bigger, same pressure differnt volume.

The return must be positiond with no kinks ( or slight kinks) and should be a steady down slope, no leveling out or slopeing down and then back up.

 

I'm gonna say it's your oil seal, not any of the other things. You are leaking oil into your turbine housing. Get it rebuilt and you won't have any of these problems anymore. That oil on the bottom of the turbo looks new.
This is why you should ALWAYS get a used turbo rebuilt unless you know exactly how it's been used and its life story.

 

Your return line looks fine to me but the oil on the bottom of your turbine housing leads be to believe that your turbo is leaking oil.

Just because you don't have oil in your charge pipes doesn't mean that your turbo is not leaking out the other side. My compressor seal was shot which filled my intercooler with oil but my turbine wheel was as dry as a bone. Only the compressor seal on my turbo went out.

My guess is that the turbine ring seal is warn and oil is getting by it. You can either use the restrictor and slow down the oil consumption or just live with it until you can afford a rebuild or a new turbo.

 

my car smoked really bad at idle and it was a kinked oil return, there was a lot of oil in my charge pipes and intercooler though.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 2kTeg &raquo;</TD></TR><TR><TD CLASS="quote">my car smoked really bad at idle and it was a kinked oil return, there was a lot of oil in my charge pipes and intercooler though. </TD></TR></TABLE>

How was it afer you fixed it?

 

I found another 1/8 fitting w/ a closed end and decided to drill a 1/16 hole in it.. I hope it works out..

Yet again, another phone picture, but you get the idea..

 

i have a 94 del sol b16 with a garrett t3/t04e turbo thats brand new, i tapped my oil pan pretty high up, maybe an inch space between top of tap, and top of pan, and im having the same problem with smoke POURING out of the tailpipe at idle, but going away at high speeds, or when boosting. i cant imagine it being the turbo seals, because the thing is brand new, but i do have a nice kink in the return line. could this be my problem?

thanks
joe


94delsol
t3/t04e turbo
8psi

 

do you know putting a restrictor in will cause a nice pressure drop after the fitting, Too little pressure can cause your impellor to wobble, causeing damage to your turbo. Are you putting that small restrictor at the turbo end of the line or as it comes off the block? j/w

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JDM S1eeper &raquo;</TD></TR><TR><TD CLASS="quote">do you know putting a restrictor in will cause a nice pressure drop after the fitting, Too little pressure can cause your impellor to wobble, causeing damage to your turbo. Are you putting that small restrictor at the turbo end of the line or as it comes off the block? j/w</TD></TR></TABLE>

an oil restrictor is recommended:

http://www.atpturbo.com/Mercha...e=BCS