[AT] Rationale for firing orders

Dean VP deanvp at att.net
Mon Mar 22 13:22:15 PST 2004


George:

Ah, but you conveniently left out the fact that the Magneto fires every time
the pistons hit top dead center. Put that into your equation. It's really a
two cylinder engine that fires on every stroke!  :-) Not bad for a 4 cycle
engine. :-)  Too bad the 4 cylinder engineers required twice as many pistons
to generate the same HP. And then with less lugging torque to boot. Sorry
folks but the JD is just a simpler and more economical design. 4 cylinder
engineers just didn't have any ingenuity! :-) No pun intended. :-)

Dean A. Van Peursem
Snohomish, WA 98290

CRS = Having a Photographic Memory but a shortage of unused film.

www.deerelegacy.com

http://members.cox.net/classicweb/email.htm


-----Original Message-----
From: at-bounces at lists.antique-tractor.com
[mailto:at-bounces at lists.antique-tractor.com] On Behalf Of George Willer
Sent: Monday, March 22, 2004 11:52 AM
To: Antique tractor email discussion group
Subject: Re: [AT] Rationale for firing orders

Frobl,

Actually, your J.D. is neither.  I'm not sure of the correct firing order,
but it is either 1-2- nothin'-nothin', or 2-1-nothin'- nothin'.  If you
listen carefully to the exhaust you can even hear the nothin'-nothin' part.
I think of it as firing disorder!  I wonder If they would have as successful
a collector tractor if they had eliminated the twist in the crankshaft to
make them even firing, or built the other half of the engine?  After all,
the Field Marshall and Lantz are hits at shows when they jump around at
idle.

Most other early tractor makers actually had clever engineers that designed
their engines with each half as a mirror image of the other, so the engines
could run as they should.  :-)

George Willer

----- Original Message ----- 
From: "Robinson" <robinson at svs.net>
To: "Antique tractor email discussion group" <at at lists.antique-tractor.com>
Sent: Monday, March 22, 2004 1:48 PM
Subject: Re: [AT] Rationale for firing orders


> Roger Welsch wrote:
>
> > Can someone help me with a brief and simple explanation of why a motor's
> > firing order wouldn't always be one-two-three-four?  My Allis WCs are
> > one-two-four-three but I have no idea why....  I love to kid my in-laws
that
> > they've always prefered John Deere Bs because they can remember the
firing
> > order.....
> >
> > Roger
> >
>
>
>
> I don't know about that Rog, I am not sure if the firing order on my
> 1948 A is 1-2 or 2-1.    ;-)
>
>
> -- 
>
>
>
> "farmer"
>
> Just when I was getting used to yesterday, along came today.
>
>
> Francis Robinson
> Central Indiana USA
> robinson at svs.net
>
>
> _______________________________________________
> AT mailing list
> http://www.antique-tractor.com/mailman/listinfo/at
>


_______________________________________________
AT mailing list
http://www.antique-tractor.com/mailman/listinfo/at






More information about the AT mailing list