Turbo, white smoke out the exhaust, ideas? - Page 3 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Synack · 09-06-2013, 10:51 AM

Quote:

Originally Posted by FastLane1000

sounds like a blown headgasket

Wouldn't a BHG run terribly, smoke under acceleration, have coolant on the oil dipstick, and many more issues I'm not seeing?

FastLane1000 · 09-06-2013, 01:21 PM

Quote:

Originally Posted by Synack

Wouldn't a BHG run terribly, smoke under acceleration, have coolant on the oil dipstick, and many more issues I'm not seeing?

Yes normally it would. depends on how bad its blown. That may not be your problem. Its just a common reason for white smoke. Its a hard one to diagnose in the forums. I hope you get it figured it out.

notFaceFace · 09-06-2013, 02:35 PM

this happened to my friends car after adding forced induction, and it ended up being his fuel injectors. Idk if you're still trying to figure it out, but if so check to see if one is stuck open

FastLane1000 · 09-06-2013, 03:26 PM

A stuck injector would likely cause black smoke and would cause a miss. A good way to isolate the problem to a single cylinder (if it is in fact related to one cylinder) would be spraying each header tube with WD40. You would see the solvent quickly dissipate from the normally operating cylinders. The one with the problem would allow the solvent to run before dissipating.

notFaceFace · 09-06-2013, 04:50 PM

Just saying it's a possibility. It was tricky because everyone thought it was a blown head gasket when in fact it was just a hung open fuel injector.

Adeets · 09-06-2013, 07:14 PM

Quote:

Originally Posted by FastLane1000

A stuck injector would likely cause black smoke and would cause a miss. A good way to isolate the problem to a single cylinder (if it is in fact related to one cylinder) would be spraying each header tube with WD40. You would see the solvent quickly dissipate from the normally operating cylinders. The one with the problem would allow the solvent to run before dissipating.

Is to take it to a Subaru only mechanic, one that deals with after market parts.

We have a few here in PA, every where I've lived I've found one close, find a souped up wrx, STI, fxt, or LGT, and ask them where the go to get work done.

FirestormFRS · 09-06-2013, 11:10 PM

Quote:

Originally Posted by Synack

Wouldn't a BHG run terribly, smoke under acceleration, have coolant on the oil dipstick, and many more issues I'm not seeing?

Depends on where the gasket blows. But with your smoke/vapor only at idle I would highly doubt it's a head gasket. Blown head gasket on a 12:1 engine is going to be very very noticeable.

Synack · 09-07-2013, 05:03 PM

Quote:

Originally Posted by FirestormFRS

Depends on where the gasket blows. But with your smoke/vapor only at idle I would highly doubt it's a head gasket. Blown head gasket on a 12:1 engine is going to be very very noticeable.

It's actually 9:1 now that I've got rods and pistons.

Synack · 09-07-2013, 05:06 PM

The smoke seems to be getting a bit worse. I "may" have seen a bit of blue mixed with the white smoke yesterday. It's definitely not a sweet smelling smoke either which pretty much rules out coolant. I'm likely burning oil if I did see that blue. Seemed to be mostly white today. I also noticed that if I idle long enough, the smoke will go away. Like 5 mins.

Synack · 09-08-2013, 05:49 PM

Another symptom. It doesn't seem to smoke when I drive it like a grandpa. Does this all seem to lead to the turbo? I can't take it off and send it back to Precision for another week so I'm just trying to make sure that's what it is.

whitefrs · 09-08-2013, 06:03 PM

its good bud.

im in the same position

malubawla · 09-08-2013, 06:08 PM

or the oil seals in the turbo

ft_sjo · 09-09-2013, 01:07 AM

Does it require an inline restrictor on the oil feed?

If so, do you have one?

FrX · 09-09-2013, 01:19 AM

As others have said already, this sounds exactly like oil getting past the turbo shaft seals to me. In my experience most journal bearing turbos *do* require a restrictor. I would get in touch with Precision directly and see exactly what they recommend IRT running one.

09-06-2013, 03:26 PM	#32
FastLane1000 Senior Member Join Date: Sep 2012 Drives: White FR-S, 6M Location: East Tennessee Posts: 272 Thanks: 70 Thanked 92 Times in 53 Posts Mentioned: 3 Post(s)	A stuck injector would likely cause black smoke and would cause a miss. A good way to isolate the problem to a single cylinder (if it is in fact related to one cylinder) would be spraying each header tube with WD40. You would see the solvent quickly dissipate from the normally operating cylinders. The one with the problem would allow the solvent to run before dissipating. __________________ http://www.ft86club.com/forums/showthread.php?t=30038

09-07-2013, 05:06 PM	#37
Synack Boosted Join Date: Jul 2012 Drives: Sideways Location: Atlanta Georgia USA Posts: 2,377 Thanks: 388 Thanked 716 Times in 414 Posts Mentioned: 25 Post(s)	The smoke seems to be getting a bit worse. I "may" have seen a bit of blue mixed with the white smoke yesterday. It's definitely not a sweet smelling smoke either which pretty much rules out coolant. I'm likely burning oil if I did see that blue. Seemed to be mostly white today. I also noticed that if I idle long enough, the smoke will go away. Like 5 mins. __________________ *Nismo 370Z 300whp -> FR-S Turbo 450whp on E85 -> Z06 Corvette 500whp*

09-08-2013, 05:49 PM	#38
Synack Boosted Join Date: Jul 2012 Drives: Sideways Location: Atlanta Georgia USA Posts: 2,377 Thanks: 388 Thanked 716 Times in 414 Posts Mentioned: 25 Post(s)	Another symptom. It doesn't seem to smoke when I drive it like a grandpa. Does this all seem to lead to the turbo? I can't take it off and send it back to Precision for another week so I'm just trying to make sure that's what it is. __________________ *Nismo 370Z 300whp -> FR-S Turbo 450whp on E85 -> Z06 Corvette 500whp*

09-08-2013, 06:03 PM	#39
whitefrs Love Boost!!!!!!!! Join Date: Jun 2012 Drives: Whiteout Scion FR-S Location: Long Island NY Posts: 3,612 Thanks: 429 Thanked 902 Times in 606 Posts Mentioned: 87 Post(s)	its good bud. im in the same position __________________ ༼ つ ◕_◕ ༽つ I LOVE BOOST ༼ つ ◕_◕ ༽つ

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09-08-2013, 06:08 PM	#40
malubawla poor man's evora Join Date: Dec 2012 Drives: Turbod BRZ Location: Dallas Posts: 620 Thanks: 42 Thanked 190 Times in 137 Posts Mentioned: 1 Post(s)	or the oil seals in the turbo

09-09-2013, 01:07 AM	#41
ft_sjo Banned Join Date: Oct 2012 Drives: GT86 Location: The Motherland Posts: 1,398 Thanks: 140 Thanked 473 Times in 271 Posts Mentioned: 22 Post(s)	Does it require an inline restrictor on the oil feed? If so, do you have one?

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