[AT] Rationale for firing orders

[Larry D. Goss]

That configuration scares me just thinking about it.  I had the
crankshaft in a Continental N62 engine break while it was running
(AC-G).  I'd hate to think what it would have been like if the engine
had been designed like you are suggesting.

Larry

-----Original Message-----
From: at-bounces at lists.antique-tractor.com
[mailto:at-bounces at lists.antique-tractor.com] On Behalf Of Robert L.
Holtzer
Sent: Monday, March 22, 2004 11:13 PM
To: Antique tractor email discussion group
Subject: Re: [AT] Rationale for firing orders

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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