[AT] oil change

[Larry D Goss]

Carburetor icing is frozen gasoline?  Now that, I want to see.  That may not 
be what you intended to say, but that's what I think I see.

Larry

----- Original Message ----- 
From: <william.neff.powell at comcast.net>
To: "Antique tractor email discussion group" <at at lists.antique-tractor.com>
Sent: Friday, December 07, 2007 12:32 PM
Subject: Re: [AT] oil change


> >From little chemistry I had in college I always thought that the frost on 
> >the carb was from the vaporization of the gasoline. I remember that when 
> >a liquid crosses the phase barrier to a gas it takes a lot of energy to 
> >cross... So, as with freon, when gas evaporates, heat energy is taken 
> >during the conversion which cools off the carb.
>
> Also, many old tractors do not have heat risers, so, the dense cold air 
> coming in does not  help the gas evaporate, so, you stall out unless you 
> force more fuel in by putting on the choke. Eventually the manifolds heat 
> up and your fine, slow speeds, low wind.. For an old tractor lover this is 
> a minor inconvenience, but probably unacceptable for most auto drivers 
> zooming down the road at 60 cooling off their manifolds.
>
> As far as the injectors, aren't most of them spraying in right at the 
> manifold near the head? That area probably heats up fast.
>
>
>
>
>
> -------------- Original message ----------------------
> From: Ralph Goff <alfg at sasktel.net>
>>
>> ----- Original Message ----- 
>> From: "Larry D Goss" <rlgoss at evansville.net>
>> To: "Antique tractor email discussion group" 
>> <at at lists.antique-tractor.com>
>> Sent: Friday, December 07, 2007 11:40 AM
>> Subject: Re: [AT] oil change
>>
>>
>> > Question of the day -- does carburetor icing occur on fuel injected
>> > engines?
>> > :-)
>>
>> Hi Larry
>> If icing does occur in fuel injected engine I have never noticed it. My 
>> 97
>> Blazer starts and runs smoother than any carbureted engine I have ever
>> known. No stumbling or hesitation, no black smoke and stalling. I don't 
>> know
>> how they do it but it works.
>>
>> Ralph in Sask.
>>
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