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#11
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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
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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
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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
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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. |
#15
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mower white smoke
The Kevin entity posted thusly:
> >"Oleg Lego" > wrote in message .. . >> The entity posted thusly: > 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. All correct. > Any "white" or blue gray smoke from the exhaust on an air >cooled engine is from burning oil. It was most definitely white, or at least whiter than what I would call blue grey, or even light blue grey, that was coming out of my cultivator. The cause was 30:1 gas-oil mixture in the tank. |
#16
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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
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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 |
#18
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mower white smoke
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#19
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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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