White Smoke, 7.8 A/F Ratio, Oil excreting from turbo manifold/flange - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Tomatosoupp · 12-15-2013, 07:44 PM

So I was driving the other day for only about 2 minutes in very cold weather when all of the sudden my car bogs down, my A/F Ratio drops form 14.2 to 7.8, White smoke produces from the exhaust, and then I see oil coming out of the flange where the hot side of the turbo meets the headers.

My battery was pretty much dead and I had to jump it prior to this happening. I let it warm up and only drove in 2nd/3rd gear briefly and didn't even hit boost.

My car did not over heat.

After car bogged down, car started to smell of gas.

Oil almost smells like gas, but cant really define the actual smell.

No significant loss of Coolant.

Oil is not milky.

I am running royal purple 10w - 30 I believe.

Sr20DET with s14 ball bearing turbo.

Stock ecu/injectors.

Apexi BOV

Swap is pretty new with only maybe 7000 miles since being put in.

Car hasn't had any problem other then battery issues and alternator issues which had been fixed.

Have wrapped the engine up pretty good drifting and beat on it a little but have not beat it to much.

Pulled turbo off, very little shaft play.

Tiny bit of oil on the cold side if the turbo.

Looking for any info, please no bashing.

Tomatosoupp · 12-15-2013, 08:50 PM

bummmmmmmmmpppppp

milto0n · 12-16-2013, 01:40 PM

Check spark plugs, compression test while at it? Turbos can blow without exhibiting shaft play so hopefully it is just the turbo and not the motor.

codyace · 12-16-2013, 06:13 PM

Make sure your turbo oil drain isn't kinked, or clogged. If it is, oil backs up, and forces it's way through the seals, and makes the car look like a fog machine. You'd be surprised how many times this happens.

Tomatosoupp · 12-23-2013, 06:47 AM

Quote:

Originally Posted by codyace

Make sure your turbo oil drain isn't kinked, or clogged. If it is, oil backs up, and forces it's way through the seals, and makes the car look like a fog machine. You'd be surprised how many times this happens.

Thanks for the replys, ya the turbo is off, I just picked up a compression tester and finished charging my battery so I will test tomrorow. Funny thing you mention the oil drain line, I pulled it off before I got your reply and it's kinked and bubbled to hell. So that may be my problem right there. Will do compression test just incase

JonTheGreek · 12-23-2013, 12:08 PM

Also do a leak-down test. It will tell you much more info than a compression test will. Anything past 20% and you should rebuild, rule-of-thumb. Both performed together will tell you a lot. Good luck.

12-15-2013, 07:44 PM	#1
Tomatosoupp Join Date: Aug 2013 Location: Boise Age: 28 Posts: 7 Trader Rating: (0) Feedback Score: 0 reviews	White Smoke, 7.8 A/F Ratio, Oil excreting from turbo manifold/flange So I was driving the other day for only about 2 minutes in very cold weather when all of the sudden my car bogs down, my A/F Ratio drops form 14.2 to 7.8, White smoke produces from the exhaust, and then I see oil coming out of the flange where the hot side of the turbo meets the headers. My battery was pretty much dead and I had to jump it prior to this happening. I let it warm up and only drove in 2nd/3rd gear briefly and didn't even hit boost. My car did not over heat. After car bogged down, car started to smell of gas. Oil almost smells like gas, but cant really define the actual smell. No significant loss of Coolant. Oil is not milky. I am running royal purple 10w - 30 I believe. Sr20DET with s14 ball bearing turbo. Stock ecu/injectors. Apexi BOV Swap is pretty new with only maybe 7000 miles since being put in. Car hasn't had any problem other then battery issues and alternator issues which had been fixed. Have wrapped the engine up pretty good drifting and beat on it a little but have not beat it to much. Pulled turbo off, very little shaft play. Tiny bit of oil on the cold side if the turbo. Looking for any info, please no bashing.

12-16-2013, 06:13 PM	#4
codyace Post Whore! Join Date: Dec 2004 Location: Poconos, PA Age: 36 Posts: 8,030 Trader Rating: (58) Feedback Score: 58 reviews	Make sure your turbo oil drain isn't kinked, or clogged. If it is, oil backs up, and forces it's way through the seals, and makes the car look like a fog machine. You'd be surprised how many times this happens. __________________ *Want Air Conditioning in your SR20 Swapped car? Check out www.sr20acbrackets.com for more information! Quest Alternator Conversions for SR20!* Check my Group Buy! Tired of lousy internal gates? Go external wastegate with one of my manifolds, Check out my group buy

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12-15-2013, 08:50 PM	#2
Tomatosoupp Join Date: Aug 2013 Location: Boise Age: 28 Posts: 7 Trader Rating: (0) Feedback Score: 0 reviews	bummmmmmmmmpppppp

12-16-2013, 01:40 PM	#3
milto0n Zilvia Junkie Join Date: Jun 2011 Location: Mesa, AZ Posts: 421 Trader Rating: (3) Feedback Score: 3 reviews	Check spark plugs, compression test while at it? Turbos can blow without exhibiting shaft play so hopefully it is just the turbo and not the motor.

12-23-2013, 12:08 PM	#6
JonTheGreek Join Date: Dec 2013 Location: Palm Beach Florida Age: 35 Posts: 13 Trader Rating: (0) Feedback Score: 0 reviews	Also do a leak-down test. It will tell you much more info than a compression test will. Anything past 20% and you should rebuild, rule-of-thumb. Both performed together will tell you a lot. Good luck.