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John Deere M

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Bill

03-28-2004 17:58:11




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I've been looking for an old 2 cyl Poppin Johnny, and have found a two cyl JD M that the owner says he thinks is a Poppin Johnny. Does anyone know if the engine on a M sounds like a Poppin J., also what would be a decent price for a pretty well restored M that needs head work.




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Dave 2N

03-29-2004 05:32:57




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 Re: John Deere M in reply to Bill, 03-28-2004 17:58:11  
Good little tractors and they are definitely "Poppin Johnnies." They just "pop their johnnies" straight up the pipe instead of taking a horizontal route before going up the pipe like they do on the bigger JD's.
With today's gas prices and ease of hauling, an M might be the way to go and it will still do you a lick of work.



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Gene Davis (Ga.)

03-28-2004 18:42:37




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 Re: John Deere M in reply to Bill, 03-28-2004 17:58:11  
The John deere "M" is a tractor made by Dubuque factory the Dubuque factory with a vertical engine and the other tractors,(A,B,G,D,H),are Waterloo factory tractors. The Dubuque and the Waterloo factories were as much different as two could be and still be owned by the same Corporation. The Dubuque vertical engine has a much different sound from the Waterloo horizontal engine. It is very easy for some one who has ever had much experience with the two engines to tell the difference in them with out even seeing them. They are very different, and share very few engine parts in common, This held true until the new Generation tractors appeared, then they became more intergrated. Gene Davis

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Bob

03-28-2004 19:11:52




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 Re: Re: John Deere M in reply to Gene Davis (Ga.), 03-28-2004 18:42:37  
Gene,

Why do you say they sound so different? Even though the Waterloo's are a 2 cylinder engine with the bores horizontal, and the Dubuques are a verticle bore 2 cylinder, they still share the "FIRE #1, 180 degrees, FIRE #2, 540 degrees, FIRE #1" pattern that is common to all the "Popp'in Johnnies. They "M's" do run faster than the A's, B's, D's, G's, etc, but the firing pattern is still the same. The H's, which are built like the A's, etc, also run faster, but fire in the same "popp'in" pattern.

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Gene Davis (Ga.)

03-29-2004 19:27:10




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 Re: Re: Re: John Deere M in reply to Bob, 03-28-2004 19:11:52  
Not wanting to start any controversy or up set any one. So yes I will agree that the firing pattern is laid out the same way. It was always interesting to hear the farmer/shade tree guys complain that they couldn't get a Dubuque engine to run but on one cylinder when they put the distributor back in place with out the oil pump timing tool.If you listen to the tractors running, you can always tell the slow turning big bore Waterloo engines from the small higher revving Dubuque engines don't even have to be looking at them. Also while on the subject;the 40's,420's&430's have a clearer sound than the M series which sounded lazier. The Waterloo engines that were set up for all Gasoline with the hi-compression engines had a much clearer sound to them than did the all fuel engines. the gas burners had a ringing tone to the exhaust and the fuel burners sounded like they were slobbering. They were a large part of my childhood as my father was part of the local JD dealership till '62.

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John Ne.

03-28-2004 21:03:13




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 Re: Re: Re: John Deere M in reply to Bob, 03-28-2004 19:11:52  
I like the little M's, but just stand by the parade route at a tractor show, listen while the D's A's G's and B's come by. Usually there is an M in the mix, and while its similar, sounds more like a big Briggs and Stratton to me. If you can buy it reasonable, don't let that keep you from bringing it home. At least it'll fit into a garage easier. John in Ne.



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Bob

03-28-2004 22:17:01




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 Re: Re: Re: Re: John Deere M in reply to John Ne., 03-28-2004 21:03:13  
I agree with you there, it's a scaled down sound, not as deep and throaty as the big fella's, BUT STILL a Popp'in Johnny sound. M's sure as heck don't sound like a Farmall "A" or a "N" Ford!



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Danny B.

03-28-2004 23:02:25




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 Re: Re: Re: Re: Re: John Deere M in reply to Bob, 03-28-2004 22:17:01  
I bought a 1950 "M" from the original owner. It is in running condition. I am in the process of cleaning and getting ready to paint. I will be using the tractor to mow with. I got this tractor for a very reasonable $1000. This price included a set of cultivators w/side dresser kit and a one row tobacco setter. I had to replace the seat, install a new starter switch and tune her up. I grew up on one just like it that my Grandpa had. He always called his "Little John". It's still a "popper".

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Bob

03-28-2004 18:20:23




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 Re: John Deere M in reply to Bill, 03-28-2004 17:58:11  
The firing order arrangement on the "M" is the same as the horizontal cylinder popp'in Johnnies, and they sound about the same.



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