[AT] Rationale for firing orders

[Gilbert Schwartz]

Larry: We had one do that while it was running at idle speed. I just laid it
on the fact it didn't have a center main and figured the flex just finally
got to it. It broke right where a center main would/should have been. Gil
----- Original Message ----- 
From: "Larry D. Goss" <rlgoss at evansville.net>
To: "'Antique tractor email discussion group'"
<at at lists.antique-tractor.com>
Sent: Tuesday, March 23, 2004 12:35 AM
Subject: RE: [AT] Rationale for firing orders


> 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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