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mower white smoke



 
 
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  #11  
Old May 11th 06, 03:02 PM posted to rec.autos.tech
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Default mower white smoke

Yet another technically-barren post from fiveiron.....

......the Internet poster who is unencumbered by the thought process


>>> wrote in article

>...

>>> white smoke, if it is truly white, is caused by *water* - so say the

experts.

......water leaking into the cylinder from the cooling system. If there was
enough water in the fuel to create steam (white smoke), the engine would
not run on that fuel...

>>> as long as the engine runs normally, I'd use it, chances are the source

for the water will be eliminated through use.


The "source" for water-caused white smoke was eliminated when the engineers
decided to go with an air-cooled engine for lawn mowers.



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  #12  
Old May 11th 06, 03:25 PM posted to rec.autos.tech
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Default mower white smoke

* wrote:


> The "source" for water-caused white smoke was eliminated when the
> engineers decided to go with an air-cooled engine for lawn mowers.


Maybe the mower's mini-computer is leaking water into the combustion
chamber.


  #13  
Old May 11th 06, 03:30 PM posted to rec.autos.tech
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Default mower white smoke



ShazWozza > wrote in article
>. ..
> * wrote:
>
>
> > The "source" for water-caused white smoke was eliminated when the
> > engineers decided to go with an air-cooled engine for lawn mowers.

>
> Maybe the mower's mini-computer is leaking water into the combustion
> chamber.
>
>
>


Or, maybe the hole in his head is allowing water to leak into fiveiron's
brain.......

  #14  
Old May 11th 06, 06:28 PM posted to rec.autos.tech
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Default mower white smoke

wrote:

> white smoke, if it is truly white, is caused by *water* - so say the
> experts.


I'm sure that "expert" opinion comes as a big shock to the people who
fly old airplanes with radial engines- which emit MASSIVE clouds of very
white smoke on startup. Especially since they are AIR COOLED engines!

Examples:

http://www.silverstatenews.com/newss...s/Image029.jpg
http://www.airrace.de/video/CriticalMassStart.wmv

Sounds like you need better experts. Yes, in water-cooled engines a
sudden cloud of white out the exhaust can certainly be due to water from
a blown head gasket.

White smoke can also be a result of heavy oil contamination, and that's
always what causes it on air-cooled engine. It happens in those aircraft
radials because about 1/3 of the cylinders are "upside down" and tend to
fill with oil leaking past the rings after the engine is shut down. It
happens in lawnmowers because they've either been over-filled or tipped
so that the crankcase breather spits a big slug of oil into the carburetor.

  #16  
Old May 12th 06, 09:53 PM posted to rec.autos.tech
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Default mower white smoke

Hi guys.

I got it fixed with a package from Sears with a new spark plug, oil ,
gas purifier+ air filter.
Both the air filter and plug were found to be greasy. Likely I was
tipping the mower last fall the wrong side resulting in oil stuck in
the plug and the filter. My fault: I should have taken those apart
before posting. Now I am spoilt with posting questions before doing
the most obvious. Anyway I have changed everything and it started
with just one pull with no smoke at all.
Thanks for all your guys' info and valuable inputs\.

Daniel
Toronto

  #17  
Old May 12th 06, 10:15 PM posted to rec.autos.tech
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Default mower white smoke

>When diagnosing automobile exhaust smoke, technicians usually refer to the
>vapor from water condensation as white smoke. Oil burning produces a blue
>gray smoke that might be mistakenly called white smoke until you see the
>difference. Black smoke is due to excessively rich fuel mixture. Lawn
>mowers and other air cooled engines cannot produce the so called white >smoke
>caused by water vapor because there is no coolant to leak into the
>combustion chamber and the muffler is too hot to allow water vapor
>condensation. Any "white" or blue gray smoke from the exhaust on an air
>cooled engine is from burning oil.


Kevin,
Most convincing argument and right on. Thanks.
Daniel

  #19  
Old May 12th 06, 11:44 PM posted to rec.autos.tech
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Default mower white smoke

>Gas purifier??????

sorry
stabilizer
some kind of gas additive
it is a package of oil, filter, plug + gas stabilizer at can$17 - a
ripof

daniel

 




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