[AJD] Physics 101

[nick_solomon at infostations.com]

My gal put her car in a ditch a few weeks back at 10 at night and was
going to have to be back to work at 8 in the morning, so I went to crank
up my '47 model b, and I don't think I could have started it for all the
money in the world. it was -23f actual air temp. to be honest, my other
car wouldent even start the next morning and it had been plugged in to all
night as well... I guess that once it gets past a certain point some
engines won't run? I don't know.... being from Ca this Minnesota weather
is really eye opening.....

can any body give me any tips for extreme cold (-20F or colder) operation
of engines? aside from the obvious of using a nice thin oil?
Nick Solomon

> What is the physics behind our old treasures being harder to start in cold
> weather?
>
> Is the ignition system affected by the cold?
> Is the fuel mixture somehow different?
> Is it harder to burn the fuel mixture enclosed by cold iron?
> The physical effects of the thickened oils are obvious, but are there
> other
> issues with oils as well?
> What about air intake?  Any changes there?  Am I more likely to suck a
> glob
> of oil from the breather into the carb during cold weather?
> Aside from the obvious effects from freezing, does the coolant system
> behave
> differently during cold weather?
>
> My old John Deere tends to wake up pretty well on a cold morning, about as
> well as I do, but the definition of cold here in Texas is different than
> it
> is elsewhere.
>
> Thanks!
>
> Cal B.
> Nacogdoches, Texas
>
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