Car suddenly started burning oil...

[s383mmber1]

Ive searched and came up with great info, im jsut looking for further options.

Heres my setup:
NA-T
MHG
ARP's
Rebuilt head, less than 3000 miles
Brand new 57trim from driftmotion Less than 1000 miles
BIC DDP
Exhaust
Intake
7 PSI Never ran past 9-10 PSI ever


Now two days ago, i took off the exhaust to weld up my new one. I couldnt get it on in time for school so i ran the car open DDP. I start up and starts up normal, not smoke nothing. Just like usual. Im driving it for a few minutes, not really beating on her at all and i notice the cars smoking a fair amount, but not terrible...

After further driving it it gets slightly worse, but the thing is, is that it doesnt always do it.

Next day: I put my new exhaust on and start the car up. no smoke what so ever. I let it idle for a minute or two before driving it. Drive for about 2 minutes or so, and come to a stop light. Its smoking blue smoke (definatly oil) fairly bad. Im thinking it was the turbo seals so i get into boost about and watch the rear view mirror. NO smoke at all.

I stop at my local deli and let the car idle. No smoke at all. Sits for about 2-3 minutes idleing and i look outside and its smoking bad. Blue smoke (OIL) is pouring out of the exhaust. Bad enough were i could smell it in the deli.

So i go out and get in the car and begin to drive very slowly and the smoke stops Nothing coming out the back at all.

Come to a stop light and it starts doing it again.

As far as i can tell it only realyl at idle after about a minute or so. :1zhelp:


:runaway:

Heres what im thinking it "could be":
-Turbo drain clogged(stainless steel line straight)
-Turbo seals (new turbo )
-Piston rings
-Valvetrain(new)

Today i will perform a compression test

THANKS for reading this longgggg post

 

[Suprapowaz!(2)]

It sounds like valve seals to me.

Pull your intercooler hose, the one from the turbo to the intercooler. Pull it at the intercooler side and put a drain pan their just in case. Check to see if anything comes out.
Is your oil dipstick pushing up any? Oh and make sure you are keeping an eye on your oil level.

 

[suprahabsfan]

It sounds like valve seals to me.

Pull your intercooler hose, the one from the turbo to the intercooler. Pull it at the intercooler side and put a drain pan their just in case. Check to see if anything comes out.
Is your oil dipstick pushing up any? Oh and make sure you are keeping an eye on your oil level.

+1 for valve seals. Should have had them done while replacing HG

 

[CyFi6]

+1 for valve seals. Should have had them done while replacing HG

he said he did

 

[Rennat]

you could pull off the downpipe and see if the turbo is covered in oil... because if its leaking from there and not the head or somewhere else then you'll see that.

and its very possible that the turbo is leaking...
OR
it could be vavle stem seals, but it doesnt really sound like them... because when that happens you get blue smoke all the time, or just on cold start ups and certain situations...

do a compression test which if you have low compression then theres your answer!

 

[s383mmber1]

What about if the valve cover gaskets were to fail and leave a large amount of oil in my gallery. Could it somehow drip dowm my sparkplug threads/somewhere else and enter the combustion chamber?

It doesnt smoke after a hard pull. It still pulls REALLY hard. And the valve seals are new. The whole upper part of the motor is FRESH

 

[NewWestSupras]

It's very unlikely pirate oil could get into the combustion chamber that way. If that were the case alot of people would be complaining about the same problem. It's most likely valve train or turbo related. Perhaps the valve stem seals aren't entirely kosher, or valves aren't sealing correctly. Have you done the leak-down? gl.

 

[s383mmber1]

I posted the same thing up on another forum, and this is what i got.

I can tell you exactly what the problem is. Are you running forged pistons?

If so, when you ran open header, you leaned out pretty bad, pistons expanded beyond the piston to wall clearance, scraped the cylinder walls and now your rings and cylinder walls are pretty much useless.

Even if you dont have forged pistons, the added heat from running lean could have ruined the valves or seals

Does this sound reasonable?

 

[Boostedstr8six]

I posted the same thing up on another forum, and this is what i got.



Does this sound reasonable?

Not at all because you can't run "open header" with a turbo installed.

I would be looking at either your return line being too small on the turbo/bad oil seals (like you said) or something amiss with the crankcase ventilation. How is your PCV system configured?

 

[Robogast]

I would say oil rings, Cause i just replaced my head gasket, had the head checket and they installed new valve stem seals, cam seals, did a valve job and valve adjustment. I checked my pistons before i put the head back on and there was a little bit of play in the side to side and it burnt oil before the head gasket change and it does it now but not nearly as often. but yea id do a compression check.

 

[s383mmber1]

Compression test will be performed tommarow morning, and ill report back with the numbers

Thanks all!

 

[Quin]

It's very unlikely pirate oil could get into the combustion chamber that way. If that were the case alot of people would be complaining about the same problem. It's most likely valve train or turbo related. Perhaps the valve stem seals aren't entirely kosher, or valves aren't sealing correctly. Have you done the leak-down? gl.

Unlikely, but completely 100% possible. If you get enough oil in there, it can leak down there and burn up. Mine did it.

 

[s383mmber1]

Unlikely, but completely 100% possible. If you get enough oil in there, it can leak down there and burn up. Mine did it.

Im truly hoping that this is the case. If not, time to rip her apart and learn something new

I had to work all day today and go in early, so ill be examining her tonight! Ill post up pictures and such Just for YOUR amusment!

 

[sneakypete]

did you do the compression test yet? that will help a lot with diagnosing the problem.
another thing you can do is take off the turbo, or even better the exhaust manifold and if you see oil in the manifold. you could possible have a bad ring. or in my case, a melted piston.
good luck
-pete