KA24E wierd problem - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

*DataXUnknown* · 10-05-2009, 11:14 AM

Alright, so I just swapped in a single cam because I blew my SR. This single cam hasen't been started for about a year or so. We took off all of the emissions and extra heater lines/ac lines. At first I had a really bad leaking injector, but we fixed that and now we got it to idle fine, but a shitload of smoke is pouring out of my exhaust. All white smoke, and I believe it is dumping raw fuel as well out. We let it idle for about 5 minutes and still the same amount of smoke.

At first I thought well ok hasen't been started for a long time, but the smoke and raw fuel didn't stop. The ECU is a 15 (automatic) but the car is manual. Any suggestions?

*ILoveMyRHS13* · 10-05-2009, 11:24 AM

Is it a blueish white smoke? If so, it's the head gasket.

lazysk8er2 · 10-05-2009, 11:30 AM

fuel being burned is black smoke...white smoke is generally coolant dripping in....oil is blueish like he said above.

i drove on a bad injector for about a few months. recently changed the injector (cyl #1) idled perfectly afterwards. white smoke came out of my exhaust for about 30 minutes. so since your engine has probably not been running for a while let it just idle.

check the coolant color see if any mixing is going on like a brownish color.

what does the smoke smell like. sweet-ish?

*s13 @ fullboost* · 10-05-2009, 11:46 AM

if the smoke smells sweet and is pure white you prob have a cracked head or possibly a mild blown head gasket. one of the to if there is blue then your deff burning oil.

*DataXUnknown* · 10-05-2009, 11:49 AM

The smoke doesn't smell sweet-ish thats for sure. It I guess smells like typical exhaust with no emissions I would say. Could the raw fuel be because I'm running a 255lph walbro fuel pump and a z32 fuel filter?

In the radiator it's very brown. I'm just running water no coolant. I'll try letting it idle for longer.

*s13 @ fullboost* · 10-05-2009, 12:01 PM

yeah the 255 and the filter might make a little diff but really its about how much the fuel pressure reg is letting in the fuel rail and how much your ecu is feeding the injectors and its just a stock 15 sohc ecu and I am assuming you have stock injectors so I really doubt that its just a bunch of raw fuel. What I would do if I where you is a complete flush on the rad system and then blend a 50 50 mix with water and coolant. as far as the smoke goes I would do a compression test and a cylinder leak down test. Just to see if the motor is even worth all the work.

Soooshi · 10-05-2009, 12:14 PM

^^

DING DING DING!

brown radiator = BAD. Quit doing that, even if its "just for a day."

Comp test, post numbers.

10-05-2009, 11:24 AM	#2
ILoveMyRHS13 I LIEK DRIFT CAR Join Date: Sep 2007 Location: Lancaster, PA Posts: 1,329 Trader Rating: (5)	Is it a blueish white smoke? If so, it's the head gasket. __________________

10-05-2009, 11:30 AM	#3
lazysk8er2 Zilvia Junkie Join Date: Jul 2008 Location: new york Age: 24 Posts: 520 Trader Rating: (5)	fuel being burned is black smoke...white smoke is generally coolant dripping in....oil is blueish like he said above. i drove on a bad injector for about a few months. recently changed the injector (cyl #1) idled perfectly afterwards. white smoke came out of my exhaust for about 30 minutes. so since your engine has probably not been running for a while let it just idle. check the coolant color see if any mixing is going on like a brownish color. what does the smoke smell like. sweet-ish? __________________ Yea sure its a stock turbo...

10-05-2009, 11:46 AM	#4
s13 @ fullboost RedLine SlideWays Join Date: Dec 2007 Location: Moorpark/Thousand Oaks, CA Age: 18 Posts: 1,494 Trader Rating: (1)	if the smoke smells sweet and is pure white you prob have a cracked head or possibly a mild blown head gasket. one of the to if there is blue then your deff burning oil. __________________ Team RedLine SlideWays www.aigraphix.com/wordpress Just another rough day at the office.

10-05-2009, 11:49 AM	#5
DataXUnknown I hate non turbo Join Date: Sep 2006 Location: Huntington Beach, CA Age: 19 Posts: 1,523 Trader Rating: (10) Rides Gallery: DataXUnknown	The smoke doesn't smell sweet-ish thats for sure. It I guess smells like typical exhaust with no emissions I would say. Could the raw fuel be because I'm running a 255lph walbro fuel pump and a z32 fuel filter? In the radiator it's very brown. I'm just running water no coolant. I'll try letting it idle for longer. __________________

10-05-2009, 12:01 PM	#6
s13 @ fullboost RedLine SlideWays Join Date: Dec 2007 Location: Moorpark/Thousand Oaks, CA Age: 18 Posts: 1,494 Trader Rating: (1)	yeah the 255 and the filter might make a little diff but really its about how much the fuel pressure reg is letting in the fuel rail and how much your ecu is feeding the injectors and its just a stock 15 sohc ecu and I am assuming you have stock injectors so I really doubt that its just a bunch of raw fuel. What I would do if I where you is a complete flush on the rad system and then blend a 50 50 mix with water and coolant. as far as the smoke goes I would do a compression test and a cylinder leak down test. Just to see if the motor is even worth all the work. __________________ Team RedLine SlideWays www.aigraphix.com/wordpress Just another rough day at the office.

10-05-2009, 11:14 AM	#1
DataXUnknown I hate non turbo Join Date: Sep 2006 Location: Huntington Beach, CA Age: 19 Posts: 1,523 Trader Rating: (10) Rides Gallery: DataXUnknown	KA24E wierd problem Alright, so I just swapped in a single cam because I blew my SR. This single cam hasen't been started for about a year or so. We took off all of the emissions and extra heater lines/ac lines. At first I had a really bad leaking injector, but we fixed that and now we got it to idle fine, but a shitload of smoke is pouring out of my exhaust. All white smoke, and I believe it is dumping raw fuel as well out. We let it idle for about 5 minutes and still the same amount of smoke. At first I thought well ok hasen't been started for a long time, but the smoke and raw fuel didn't stop. The ECU is a 15 (automatic) but the car is manual. Any suggestions? __________________ Last edited by DataXUnknown; 10-05-2009 at 11:51 AM.

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10-05-2009, 12:14 PM	#7
Soooshi Post Whore! Join Date: Dec 2004 Location: Pomona, CA (2 houses down from the dead body) Age: 23 Posts: 5,708 Trader Rating: (9) Rides Gallery: Soooshi	^^ DING DING DING! brown radiator = BAD. Quit doing that, even if its "just for a day." Comp test, post numbers. __________________ <imgsrc="http://img134.imageshack.us/img134/6123/siggyx.png">

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