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Tractor Talk Discussion Forum

why did they quit building two cyl deeres

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otter madness

07-31-2006 18:52:29




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Why did they? They made as much power as a 4 cylinder equivilent. I own two poppers and work them and they are good tractors with strong orginal engines. So why did they quit making them?




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otter madness

08-01-2006 18:12:18




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 Re: why did they quit building two cyl deeres in reply to otter madness, 07-31-2006 18:52:29  
I read your articles, but i think deere could have kept the two cylinder had they went to a detroit diesel making more 435 like engines. take the engine out of a G or a 70 and put a detroit in its place but same size. You would essentialy double your hp without your engine size right?



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B-maniac

08-01-2006 14:55:26




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 Re: why did they quit building two cyl deeres in reply to otter madness, 07-31-2006 18:52:29  
Does that mean Harley Davidson is next?? Let's face it,they don't hold a candle to a Honda Gold Wing when it comes to smooooth power and ease of handling and low maintenance. BUT, since nostalgia is big right now and will be as long as "baby boomers" can still walk,the Harley rules and so do the Jonh Deere 2CYL.s. Technology makes our living but nostalgia makes us feel good!



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j cook (iowa)

08-01-2006 06:09:09




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 Re: why did they quit building two cyl deeres in reply to otter madness, 07-31-2006 18:52:29  
So long as hp requirements remained under 60hp, the two cylinder design could generate enough power. However, by as early as 1950, management at John Deere became aware that hp requirements would soon rise to above 100hp. In order for a two cylinder design to reliably generate that kind of power, it would have to have cylinders of a huge diameter, making the engine far too wide.

Also, the tooling to build the two cylinders was getting old and would soon have to be replaced. The shift to four and six cylinder engines, therefore was a natural and logical developement.

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msb

07-31-2006 20:26:59




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 Re: why did they quit building two cyl deeres in reply to otter madness, 07-31-2006 18:52:29  
One reason---the two row mounted corn picker.



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CLW

07-31-2006 20:23:16




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 Re: why did they quit building two cyl deeres in reply to otter madness, 07-31-2006 18:52:29  
The others are correct. The 2-cylinder was reaching its limit. Had they not changed they would have fallen behind the compition and maybe never caught up.



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Matt from CT

07-31-2006 19:16:47




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 Re: why did they quit building two cyl deeres in reply to otter madness, 07-31-2006 18:52:29  
The New Generation 3010 / 4010 where introduced in 1960.

My understanding is the engines where just getting wider and wider...like the R.

4 & 6 cylinders let the engine be narrower again.



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Dr.EVIL

08-01-2006 08:10:39




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 Re: why did they quit building two cyl deeres in reply to Matt from CT, 07-31-2006 19:16:47  
Yep, and I've seen pictures of prototype 3010/4010's that had V-4 & V-6 engines with the heads & valve covers sticking out from underneath the hoods... "What was Deere Thinking!?!?!" Plus the uneven power pulses of the 2-cyl. engines were not only hard on powered implements but hard on the engines themselves. The old 2-cyl. were loud, vibrated badly, not smooth at all...but they would stetch a gallon of fuel quite a ways....Seems like Dad always had one of them sitting around in the way but I'd do about ANYTHING to keep from having to run them. My personal definition of "Patience and Persistence" is rotary hoeing 80 acres of corn with a JD 60 pulling a 6-30 rotary hoe only running in 3rd. & 4th gear....By the time I was done my hands & feet were numb, head was throbbing so bad I couldn't focus My eyes....

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Mike M

08-01-2006 09:52:35




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 Re: why did they quit building two cyl deeres in reply to Dr.EVIL, 08-01-2006 08:10:39  
Sounds like the one you drove musta had a problem like fylwheel or clutch driver out of time makeing it vibrate. I see this quite a bit. I used to run a JD 70 gas all day and loved it !



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Dr.EVIL

08-01-2006 14:09:57




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 Re: why did they quit building two cyl deeres in reply to Mike M, 08-01-2006 09:52:35  
Don't know..... Guy had an A, 60, G, 70, 520, and a B that sat out in the woods.... Only one that didn't vibrate was the B, because it didn't run. Guy almost had enough BIG tractors to use... Had a pair of 4020-D's that turned into a 4020/4320 in about '69, 4230-turbo, 2470 Case turned up to about 225 HP... I worked for this Guy "Part-time Full-time" for about 10 years in HS and college. When He had work I was there and when He didn't I worked someplace else!

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Hard Knocks IV

08-05-2006 02:50:46




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 Re: why did they quit building two cyl deeres in reply to Dr.EVIL, 08-01-2006 14:09:57  
Dad bought a JD 60 back in the 60s for a extra tractor on the farm worst handling and most vibrating machine I've ever been on sold that and bought an Oliver 77 talk about extreme opposites that was a smooth running good handling ride for sure.



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sammy the RED

07-31-2006 19:12:45




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 Re: why did they quit building two cyl deeres in reply to otter madness, 07-31-2006 18:52:29  
Because in order to make more h.p like everyone else, the 2 cylinders would have to be really large.

The 2 poppers were Okay for their time, but, time marchs on.

The four cylinder motors are much smoother runnimg machines.



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Harley

08-01-2006 06:27:27




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 Re: why did they quit building two cyl deeres in reply to sammy the RED, 07-31-2006 19:12:45  
They still do. They just added more cylinders to them so they could keep up with the industry. :-)



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