What kind of modificatins did our G have?

Gambles

Well-known Member
My brother and I attended a local plowing bee for antique tractors last Sunday. The wheat ground was really hard, the weather was quite warm and the notice to the event was only issued the day before, so attendance wasn't quite what was expected, but I enjoyed it. To say that the tractors had their work cut out for them was an understatement. After viewing the event, my brother and I got to talking about a G that my dad had when we were growing up. We called it our "plowing tractor", but we also used it for cutting silage with a New Holland silage cutter, as we grew up on a dairy farm. We both agreed that our old G would have put all these tractors to shame. As said, we only used this tractor for plowing, a John Deere three bottom, and for cutting silage in the fall.
Speaking of this G, I would like to get some input from the crowd here what was done to the engine. First off, I know it was a high compressioned tractor. Just hearing it run would clue you into that. I also remember that it would easily pull a three bottom plow in the toughest ground. It also pulled a single-row silage cutter so easily that dad bought a two-row head for the cutter. I remember it drank a lot of gas and this was in the era when we plowed just about all the ground in the fall. It had the GoodYear Traction Torque rear tires. (The ones that did NOT have the straight bars, correct? Each bar changed angles) It also had concrete weights on each rear tire, probably 500-600 pounds each. I THINK the rears also had fluid, but I was a kid, so I'm not sure. I also remember that the clutch was set tight and I could easily do a 10-inch wheelie just by a hard snap of the clutch. (Hey, I was an young kid, just not a smart young kid) I do remember that I impressed a few of the neighbor buddies by showing them that.
So my question is this: What do you think was done to the engine back then? I know we easily went through a starter or two each year on the thing and pull-starting it happened occasionally just to get it started.
So fellow experts, what do you think was done to this engine to make it such of a brute?
 
Probably what the others have already mentioned. A G "all fuel" converted to gas with the proper parts would punch up the horsepower past a 70.
 

One & main thing I remember about J/D G was it used a Bunch of Gas. We had 2 Cyclone A's & a Neighbor had a G.
When we were all plowing together, he would head home to eat & get gas running on the reserve tank almost 2 hours
be for we had to. But that old Devil had some snot. I never liked running it, being little it steered much hard
the A's. Our A's didn't have rollamatic front end & the G was a split pedestal late model, & he had both wide & narrow
front end & 801 3ph. Oh the days when all the neighbors helped each other get in every crop through out the year. We
had a 14T baler, & he had #12 Chopper. One of our A ran the blower when filling the silo. I've participated Mowing hay
in one field with 5 #5 mowers on 5 different J/D's. Neighbor who owed the G had a 46 slant dash A & a 50 cyclone B that
was a cracker jack of a tractor in it's day. Neighbor to the North of us had 2 8n Ford's, he raked hay & we buzzed fire
wood with. One had a Loader with a manure bucket.. Those were the days......
 
The farmer next to us had a late G and had a ' flat head" off an early G installed. It had a lot more power than his 620.
 
I bought a G a couple years ago from a farmer that bought it in 1961. He said that right after he bought it he put a gas manifold and M&W high compression pistons in it. Said it dynoed over 70 hp after. I think they originally were around 38 hp with around a 4.5:1 compression ratio.
 
Yes power block, was written across the top of the block. how much bigger it was, i am not sure but they mean't business, easy to read from the ground!! But the G had a lot of potential !!
 
Hello my dad had a G with a wide front we used to pull a model 70 IH 4 14 plow with it in heavy clay , pull a JD no 6 chopper and had a front mount 4 row cultivator for it , we used to mix gas and diesel in the big tank , straight gas in the little for starting , the old timers talked about a fuel call ( blue flash) that they used to run , my neighbor ( two brothers ) bought one new, they knew of a guy that would burn straight fuel ( maybe NO 1 )when plowing but he said he had to switch it back to gas to and from the field, this tractor has been completely restored by the son of one of the brothers, as for our G dad traded it off on a 1650 oliver diesel , a trade that we regretted the oliver was no where near the tractor that the G was as far as power and was lighter , I later bought a narrow front G that I still have , ( sitting in the shed along with the first B I drove ( 1936 ) as with my gandpas 1937 A ) as you said the G has a distinct sound I can tell a G just from the sound , The only place I see them now is at tractor pulls and shows, my neighbor rakes hay with his 38 B and has a mounted sprayer on his 40's hand start B and dose his tillage with a Stieger , I wonder how many tcator made to day will be running in 80 years . Thanks Bryan
 

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