White smoke?

Information on the naturally-aspirated KA24E and KA24DE engines.
yellowcell
Posts: 200
Joined: Wed Feb 16, 2005 10:25 am
Car: s13 1991 Fastback

Post

Hello people, i have a 1991 s13 with the stock ka24de.

The Problem ------> When i am at a stop light or ilding my car and i am about to take off, a puff or white smoke shoots out of my 3 inch catback. well it doesnt seem to make a difference motor wise. and i say this becasue i cant feel a difference. i have been driving my car like this for about a year now. and i do change my oil regularly. any ideas? or anyone have this problem? i dont want to be in a drift show and my motor blows up! haha please help thanks you.

P.S ima try to get a picture in by today.


xyoufailmex
Posts: 646
Joined: Mon Feb 07, 2005 6:56 am
Car: 1990 240 FB

Post

Sounds like a head gasket about to blow.. but for a year without any change? hmm

TheOne
Posts: 1836
Joined: Mon Aug 09, 2004 4:28 pm
Car: 93 240sx FB
Location: Arlington, TX

Post

most likely your head gasket is done and its leakin coolant into the pistons because white smoke is burnt coolant, you wont notice much power drop(if any) but yeah it'll still be there. it happens to my eclipse(beater)....white(and now blueish which is oil) comes out of the exhaust when the car is idling.

yellowcell
Posts: 200
Joined: Wed Feb 16, 2005 10:25 am
Car: s13 1991 Fastback

Post

**** guys i replaced my head gasket like a year and a half ago! wtf! how much is the gasket by it self without install.

240ssex
Posts: 78
Joined: Mon Jan 31, 2005 3:50 pm

Post

You got bad rings...I think

NateDogg
Posts: 811
Joined: Sat Aug 24, 2002 2:20 pm

Post

you prob better off gettin a used engine. you might have a warped head or block which caused the thing to blow again. so the machine work wouldn't be worth the value of the engine unless its really low miles.

User avatar
weird240
Posts: 200
Joined: Mon Feb 21, 2005 10:45 pm
Car: 91 redtop 240fb sold. 91 240sx fb, 95 tercel(flat black beater)

Post

I had the same problem if it gives a sulfer smell then it is a crack head and/or a blown head gasket good luck man

Z Style
Posts: 427
Joined: Wed Jan 19, 2005 3:38 pm
Car: 93 240sx Roadster
01 Pathfinder Overland
97 F350 Powerstroke
88 RX-7 SR20DET Swapped
14 Star Bolt

Post

240ssex wrote:You got bad rings...I think
Bad rings would equal black or darker smoke because you would be burning oil. White smoke is definately burning coolant, keep track of your coolant level and see how it is doing.

User avatar
Mikoriad
Posts: 183
Joined: Sat Oct 16, 2004 6:34 am
Car: 93 240sx fastback

Post

I was always under the impression, that black smoke was an indication of a rich condition(injectors, plugs, sensors). Blue or white smoke, or a mix there of could be coolant or oil burning , depending what you're actually seeing (rings, seals, something leaking).


Return to “KA24E / KA24DE Forum”