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Old 03-05-2004, 08:11 PM   #1
Scooby Newbie
Member#: 56671
Join Date: Mar 2004
Default xt problems

hello all, i have a 1986 Subaru turbo 4wd XT . it has the 4wd button on the 5speed. enough with the talk. I can start it up just fine, in fact it started after sitting for 4 months in Alaska sub-freezing temperatures all the time.It has good clean oil and antifreeze, etc. When it starts it billows i mean BILLOWS white stinky smoke,epecially when u give it RPMs It is a horribe white smoke that smells like charring or something disguesting. I am wondering what may cause this, or how to fix it? the car does not drive around because it billows. how do i fix this problem>? can someone please help me!
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Old 03-05-2004, 09:13 PM   #2
Scooby Newbie
Member#: 15687
Join Date: Feb 2002
Chapter/Region: Tri-State
Location: SOA engineering facility
08 Tribeca


You could have a few problems

You could have a few problems

1 The turbo has blown a seal.

2 You have a blown head gasket.

3 You could have a bad or broken
valve guide seal.

4 You could have a crack in the cylinder heads in the exhaust port. Note if you take it apart and see a crack between the valves. That is not leaking and don't worry about that crack).

5 You could have a clogged PCV breather system and your PCV valve is just pulling the oil out of it.

6 You could have a problem that I had on SOA's rally car some years ago. We thought we had a turbo go during a rally in Maine. It was subzero and we didn't realize that the old style seals needed to be a certain temp to seal properly under that temp the seal would let oil past and into the compressor side of the turb causing the smoke.

You could have others that I havent hit on but this should give you a starting point

Hope this helps.

22BKEEPER is offline   Reply With Quote
Old 03-07-2004, 02:21 PM   #3
Scooby Guru
Member#: 4835
Join Date: Mar 2001
Chapter/Region: Tri-State
Location: Fl33tw00d, PA
2003 Baja 5MT
Yellow w/ 220,000 miles


How about after it warms up? Still smoking?
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Old 03-09-2004, 08:15 PM   #4
Scooby Specialist
Member#: 30727
Join Date: Dec 2002
Chapter/Region: South East
Location: Orlando, FL
2000 Legacy B4 RSK
*Formerly subyluvr2212*


Sounds to me like a typical EA82T headgasket failure. That's the only thing scaring me from getting an 80's turbo Scoob.

Do a compression test. I'm sure you'll find 1 or 2 cylinders on one side of the engine to be rather low...
DerFahrer is offline   Reply With Quote
Old 03-12-2004, 02:18 AM   #5
Scooby Newbie
Member#: 56671
Join Date: Mar 2004

IT looks like there is an exhasut leak UNDER the hood, right behind/ on the turbo, or from around there. I dont know how this would cause billowing white "special-smelling" smoke that stinks, like some crazy burning ****. This car has good antifreeze, new oil filter, clean oil, good air filter, new spark wires. i see how it could be a blown head gasket.... but i dont understand FLAT-4s very well at all!

Last edited by Flowmastered87GL; 03-14-2004 at 03:40 PM.
morganater is offline   Reply With Quote
Old 03-14-2004, 10:05 PM   #6
Scooby Newbie
Member#: 47821
Join Date: Nov 2003
Chapter/Region: MAIC
Location: money bro......

I'd be really suprised if it didnt have a cracked head or two.
What a weak link they used to be and I guess still are.
Andrewtech is offline   Reply With Quote

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