[AT] Rationale for firing orders

[Robert L. Holtzer]

Four cylinder cranks are flat -- two end cylinders are up and two center 
cylinders down at the same time for primary balancing.  You can figure out 
the various firing combinations that will work.  Anyone seen any four 
cylinder cranks with 1/2 and 3/4 paired (ie, same throw)?  Would probably 
be a great rocking couple to the balance!

Bob Holtzer

At 11:09 AM 3/22/2004 -0600, you 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
>
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