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Fire Order.


 
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L.Fure
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Joined: 17 Jun 2013
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Location: Wisconsin

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PostPosted: Wed Jan 03, 2018 6:32 am    Post subject: Fire Order. Reply to specific post Reply with quote

I have been wondering about this for a long time. Why did some tractor engine designers use the firing order of 1-3-4-2, and others used a firing order of 1-2-4-3? The firing order of my 8N is the 1-2-4-3, and I remember working on some Allis Chalmers that had the same firing order.
 
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old
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Joined: 12 Mar 2000
Posts: 78274
Location: Lake of the Ozarks area of MO

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PostPosted: Wed Jan 03, 2018 8:57 am    Post subject: Re: Fire Order. Reply to specific post Reply with quote

Just one of those thing to try to do something different and maybe to make sure they could not be sued for having something the same
 
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D Case Guy
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PostPosted: Wed Jan 03, 2018 2:13 pm    Post subject: Re: Fire Order. Reply to specific post Reply with quote

I believe that 1342 is by far the most
common order on 4 cyl engine, at least on Ag engines. Only a
select few used different. I knew Allis
was one of them. Perhaps an Allis
aficionado wohld have some insight on why
they chose a different order.
 
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D Case Guy
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PostPosted: Wed Jan 03, 2018 2:14 pm    Post subject: Re: Fire Order. Reply to specific post Reply with quote

I believe that 1342 is by far the most
common order on 4 cyl engine, at least on Ag engines. Only a
select few used different. I knew Allis
was one of them. Perhaps an Allis
aficionado would have some insight on why
they chose a different order.
 
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rustred
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Joined: 01 Jul 2009
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PostPosted: Wed Jan 03, 2018 6:15 pm    Post subject: Re: Fire Order. Reply to specific post Reply with quote

o. m. g. there is a reason for that. you were just bragging the other day about engine rotations,... well maybe balance and rotaion come into play here. there is a real answer .
 
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old
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Location: Lake of the Ozarks area of MO

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PostPosted: Wed Jan 03, 2018 6:22 pm    Post subject: Re: Fire Order. Reply to specific post Reply with quote

Ya balance comes into play but be it 1,2,4,3 or 1, 3,4,2 it all balances out. Gettign pretty bad how yo ukeep going after me for nothing
 
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rustred
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PostPosted: Wed Jan 03, 2018 6:25 pm    Post subject: Re: Fire Order. Reply to specific post Reply with quote

u better have a talk with the engineers on that answer.
 
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L.Fure
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Joined: 17 Jun 2013
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Location: Wisconsin

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PostPosted: Thu Jan 04, 2018 8:20 am    Post subject: Re: Fire Order. Reply to specific post Reply with quote

CVPost-old wrote:
(quoted from post at 03:22:44 01/04/1Cool Ya balance comes into play but be it 1,2,4,3 or 1, 3,4,2 it all balances out. Gettign pretty bad how yo ukeep going after me for nothing


I remember, a long time ago, I was told that odd numbered cylinder engines balanced much better than even numbered engines. Like 3, 5, 7 cylinders in an engine. That must not have caught on very well. But a few are still out there. Chevrolet used a five cylinder engine in the Colorado pickups. You had a choice of either a 4 cylinder, or a 5 cylinder engine when you ordered a new one. I wonder what the firing order is on a 5 cylinder engine.
 
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fixerupper
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Joined: 12 Oct 2003
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Location: Albert City Iowa

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PostPosted: Fri Jan 05, 2018 7:28 pm    Post subject: Re: Fire Order. Reply to specific post Reply with quote

They claim an odd numbered cylinder engine is smoother because no two pistons are going up and down at the same time like in an even numbered engine. That doesn't seem to hold true with my Colorado five cylinder. It feels and sounds like a four cylinder only the vibes are a little closer together. Could be just poor isolation between engine and frame too.
 
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L.Fure
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Location: Wisconsin

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PostPosted: Sat Jan 06, 2018 4:34 am    Post subject: Re: Fire Order. Reply to specific post Reply with quote

fixerupper wrote:
(quoted from post at 04:28:15 01/06/1Cool They claim an odd numbered cylinder engine is smoother because no two pistons are going up and down at the same time like in an even numbered engine. That doesn't seem to hold true with my Colorado five cylinder. It feels and sounds like a four cylinder only the vibes are a little closer together. Could be just poor isolation between engine and frame too.


What kind of gas mileage do you get with the five cylinder engine? I have a 2009 Colorado that has the four cylinder with a five speed stick shift. It has really good gas mileage.

I wonder if torque output has anything to do with the choice firing order? I wish I could ask an engine designer these questions.
 
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