white smoke from exaust - ZX6R Forum
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post #1 of 13 Old 04-05-2009, 03:02 PM Thread Starter
 
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white smoke from exaust

hey i have a little white smoke coming out of my exaust does anyone know how to fix this or know what is causing this
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post #2 of 13 Old 04-05-2009, 03:28 PM
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Head gasket problems can cause this on warmup, but it's probably nothing that drastic. When does it occur?

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post #3 of 13 Old 04-05-2009, 06:18 PM Thread Starter
 
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i had just got done changing out my oil and i started it up i thought that maybe i over filled the case with to much oil but it was under the full line
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post #4 of 13 Old 04-05-2009, 08:48 PM
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is there a sweet smell to the exhaust? if there is then that means your head gasket is leaking and you are burning coolant.


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post #5 of 13 Old 04-05-2009, 09:11 PM
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white is water (condensation) or coolant. blue is oil. black means too damn much fuel.
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post #6 of 13 Old 04-06-2009, 07:04 AM
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How do your oil and coolant caps look?



^ That was my oil cap when I was getting water in the oil, lucky for me it wasn't coolant. I had a leaky cam cover gasket that was somehow letting moisture in.

If you get milky crud in your oil then water is mixing with it, if you get milky crud in your coolant then oil is mixing with it. This is not a good thing.

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post #7 of 13 Old 04-06-2009, 09:03 AM
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You need to establish if it is water vapour or smoke - best way to tell is to hold something at the end of the exhaust like a mirror or tin tray - if it condenses to water droplets then it is just moisture and nothing to worry about, it normally occurs during the warm up of the engine (as long as it disappears when the engine has warmed up)

If it doesn't condense then it is probably burnt oil, slightly more worrying, oil is either getting past the piston rings or into the combustion chamber via the head gasket....

What oil did you put in it?
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post #8 of 13 Old 04-06-2009, 07:21 PM
 
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Mine smokes white untill it warms up. It think this is normal. This is when temps. are below 60 degs.
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post #9 of 13 Old 04-07-2009, 08:50 AM
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do you park it outside or in a garage and is it humid where you live
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post #10 of 13 Old 04-07-2009, 01:46 PM
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Fort Stewart, GA From memory there's some humidity there. Been sometime since I was in that neighborhood.
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post #11 of 13 Old 04-07-2009, 04:44 PM
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+1 for trying the mirror test. I live in Wisconsin, and mornings are cold most of the time. There will always be white smoke aka condensation coming out shortly after startup. Unless you own my old geo metro, then its all white and blue smoke lol. I would assume if it comes out RIGHT away, then it could be smoke, but if it starts after like 10 or so seconds, then most likely water vapor.
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post #12 of 13 Old 04-07-2009, 08:56 PM
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I have to agree with mine_us_3...mine blows white "steam" shortly after start up until the temp hits 110-115 degrees. I actually get water coming out of the exhaust tip as well.

P.S. Does anyone think that might be a little excessive for condensation in the exhaust?!
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post #13 of 13 Old 04-07-2009, 09:11 PM
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Quote:
Originally Posted by MV2K6R View Post
I have to agree with mine_us_3...mine blows white "steam" shortly after start up until the temp hits 110-115 degrees. I actually get water coming out of the exhaust tip as well.

P.S. Does anyone think that might be a little excessive for condensation in the exhaust?!
Not at all. some of the cars at work will blow water for several minutes...enough to leave a puddle worthy of mopping.

Basically, as your exhaust cools water condenses inside, and (if theres enough) it can puddle up at the low points. it takes a little while to heat it up to the point that it evaporates, and blow it all out. It's normal, and nothing to be concerned with.

Plus, on top of that, proper combustion turns hc and o2 into co and h2o, so you're going to have some water in your exhaust no matter what you do.
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