Fuel Question (Long Story) Short: White Smoke - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

rocksteady_racer · 12-11-2007, 08:08 PM

Ok so I had to drill the block out and I finally got the rail and not leaking after a o-ring decided to break. Well anyway now white smoke that smells like fuel is pouring out the back. Anybody know what this could be? FPR not working properly, valve cover gasket? It's heavy white smoke that cleans up a little when it warms up but it's still quite noticeable. By the way it's been sitting for about 2 months if that could be the problem. Thanks in advance.

nissan240sxkid · 12-11-2007, 08:17 PM

It could be leaky/damaged injector or most likely an oring is shot/dry rotted and just letting fuel pour into the motor

pignose4life · 12-11-2007, 08:20 PM

head gasket maybe check the oil, if its creamy then its a head gasket. or do a compression test if 2 pistons in a row are low then its something with the head

rocksteady_racer · 12-11-2007, 08:25 PM

I don't think it's the head gasket because it revs up to 5 grand easily with no power loss.
And the car doesn't ride funny or anything. :-\
By checking the oil do you mean through the dipstick or dumping the oil out and looking at it? What does "creamy consist of" LoL. Is it like oil and another fluid mixed together or something?

By something with the head could it be the valve cover gasket cause somebody told me a while ago that was about to go? Or is white smoke not a sign of that?

specialk2003 · 12-11-2007, 08:29 PM

White smoke = coolant
Black smoke = fuel
Blue smoke = oil

Not sure how cold it is out where you are right now, but when it is cold outside, and you first start your car, there WILL be white smoke coming out of the exhaust. That is normal. It is just condensation that is evaporating from the heat of the exhaust. That would explain why it doesn't smoke so much when it is warm.

Are there any running problems?

I would double check all of your fuel connections. Maybe one of your hoses are leaking?

specialk2003 · 12-11-2007, 08:34 PM

He means if you just pull the dipstick. It will look "milky" if there is coolant in the oil, and if it does, you will know when you see it. And the valve cover gasket and head gasket are 2 separate items.

And I don't know how a valve cover "looks like it is about to go," it either leaks or it doesn't.

rocksteady_racer · 12-11-2007, 08:39 PM

Well it didn't look milky when I checked it. Thanks alot for all your help guys. It's probably just the water evaporating from the exhaust or something. I'll keep you guys posted if I come up with anything. I'll check again tomorrow when it's light out. Thanks for all your help everybody

12-11-2007, 08:08 PM	#1
rocksteady_racer Zilvia Junkie Join Date: Oct 2005 Location: Phila Age: 39 Posts: 544 Trader Rating: (0) Feedback Score: 0 reviews	Fuel Question (Long Story) Short: White Smoke Ok so I had to drill the block out and I finally got the rail and not leaking after a o-ring decided to break. Well anyway now white smoke that smells like fuel is pouring out the back. Anybody know what this could be? FPR not working properly, valve cover gasket? It's heavy white smoke that cleans up a little when it warms up but it's still quite noticeable. By the way it's been sitting for about 2 months if that could be the problem. Thanks in advance.

12-11-2007, 08:25 PM	#4
rocksteady_racer Zilvia Junkie Join Date: Oct 2005 Location: Phila Age: 39 Posts: 544 Trader Rating: (0) Feedback Score: 0 reviews	Other Points I don't think it's the head gasket because it revs up to 5 grand easily with no power loss. And the car doesn't ride funny or anything. :-\ By checking the oil do you mean through the dipstick or dumping the oil out and looking at it? What does "creamy consist of" LoL. Is it like oil and another fluid mixed together or something? By something with the head could it be the valve cover gasket cause somebody told me a while ago that was about to go? Or is white smoke not a sign of that?

12-11-2007, 08:39 PM	#7
rocksteady_racer Zilvia Junkie Join Date: Oct 2005 Location: Phila Age: 39 Posts: 544 Trader Rating: (0) Feedback Score: 0 reviews	Ok Well it didn't look milky when I checked it. Thanks alot for all your help guys. It's probably just the water evaporating from the exhaust or something. I'll keep you guys posted if I come up with anything. I'll check again tomorrow when it's light out. Thanks for all your help everybody

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12-11-2007, 08:17 PM	#2
nissan240sxkid Zilvia Member Join Date: Jun 2005 Location: NJ Posts: 211 Trader Rating: (5) Feedback Score: 5 reviews	It could be leaky/damaged injector or most likely an oring is shot/dry rotted and just letting fuel pour into the motor

12-11-2007, 08:20 PM	#3
pignose4life Zilvia Junkie Join Date: Dec 2006 Location: 626.socal Posts: 547 Trader Rating: (2) Feedback Score: 2 reviews	head gasket maybe check the oil, if its creamy then its a head gasket. or do a compression test if 2 pistons in a row are low then its something with the head

12-11-2007, 08:29 PM	#5
specialk2003 Zilvia Member Join Date: Aug 2006 Location: San Jose, CA Posts: 218 Trader Rating: (5) Feedback Score: 5 reviews	White smoke = coolant Black smoke = fuel Blue smoke = oil Not sure how cold it is out where you are right now, but when it is cold outside, and you first start your car, there WILL be white smoke coming out of the exhaust. That is normal. It is just condensation that is evaporating from the heat of the exhaust. That would explain why it doesn't smoke so much when it is warm. Are there any running problems? I would double check all of your fuel connections. Maybe one of your hoses are leaking?

12-11-2007, 08:34 PM	#6
specialk2003 Zilvia Member Join Date: Aug 2006 Location: San Jose, CA Posts: 218 Trader Rating: (5) Feedback Score: 5 reviews	He means if you just pull the dipstick. It will look "milky" if there is coolant in the oil, and if it does, you will know when you see it. And the valve cover gasket and head gasket are 2 separate items. And I don't know how a valve cover "looks like it is about to go," it either leaks or it doesn't.