"G" distillate vs. gas horsepower?

clampdaddy · Oct 10, 2013

We all know that the G was rated at around 36 horsepower. I assume that since it was sold as a burner of cheaper heavy fuels, that is probably what mother Deere used when they came up with that horsepower figure. Does anyone know what (if any) horsepower difference there was when the tractor was fed gasoline with no other modifications made to the engine?

Kent Petersen · Oct 11, 2013

There would not be any data on gas Gs because Deere never made any. gas pistons and manifold came out as parts from deere near the end of G productsion a good G with the gas conv. would put out About 50 to 55 hp

Mike M · Oct 11, 2013

Those figures are right in line with what I dynoed a late G at that was overhauled and the only modification was to install gas alum. pistons. Nothing wild just so it would still run on cheap pump gas.

And as to the gas verses all-fuel when stock on my 1946 A as I was in the middle of the field plowing I switched from gas to kerosene or vice versa ? and the only differance I could tell was the smell of the exhaust.

And just for curiosity on my 1945 B which was upgraded to .045 over JD cast iron gas pistons I tried kerosene in it. When first switched it seemed to sit there and run fine,but the slightest load like trying to move or move up a very slight slope and the KNOCKING came on strong ! I didn't do that for long ! and don't recommend any one else try it !!!!

clampdaddy · Oct 11, 2013

(quoted from post at 11:10:48 10/11/13) There would not be any data on gas Gs because Deere never made any. gas pistons and manifold came out as parts from deere near the end of G productsion a good G with the gas conv. would put out About 50 to 55 hp

Yeah, just curious if anybody ever tried dyno'ing a bone stock G while running it on gas. Once I get the clutch parts for mine to get it mobile I was thinking about pulling it once before I swap out the pistons, just for fun. Just wondering if I should run it on gasoline or if I should buy a couple gallons of kerosene.

Mike M · Oct 11, 2013

I bet very few stock ones around. Many had the flat head
added to boost power.

clampdaddy · Oct 11, 2013

(quoted from post at 01:00:28 10/12/13) I bet very few stock ones around. Many had the flat head
added to boost power.

Sure wish a previous owner would have spent the money so I wouldn't have to. Lol!

"G" distillate vs. gas horsepower?

clampdaddy

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Kent Petersen

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Mike M

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clampdaddy

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Mike M

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clampdaddy

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