just wondering

[warren woodrow]

Why does a tractor like my 424 ih use a fuel pump rather than simple gravity feed ? The pump actually pumps at very low pressure so I see no advantage. { other than maybe it allowed IH to set the carb at a certain level on the tractor which would not have allowed a gravity feed .]

 

[Jim Becker]

I'm not that familiar with the details of how a 424 fits together. But it looks to me like the bottom of the tank and the carb are about on the same level. I doubt that the last 1/4 tank or so would feed reliably, particularly if you start going a bit uphill.

 

[fastfarmall]

I would say Becker is right on the button, you have to make it so it works in, and under all conditions!

 

[wore out]

(quoted from post at 20:07:46 01/30/21) I'm not that familiar with the details of how a 424 fits together. But it looks to me like the bottom of the tank and the carb are about on the same level. I doubt that the last 1/4 tank or so would feed reliably, particularly if you start going a bit uphill.

I agree with Jim.

Unneeded parts cost money and manufacturers don't typically do that, engineering and/or field testing must have shown a need for it or it wouldn't be there.

Warren, you must be REALLY bored and/or lonely to have the spare time to fret over how a tractor was designed and built nearly 60 years ago!

(Just say'in!)

 

[warrenWoodrow]

(quoted from post at 05:29:43 01/31/21)

(quoted from post at 20:07:46 01/30/21) I'm not that familiar with the details of how a 424 fits together. But it looks to me like the bottom of the tank and the carb are about on the same level. I doubt that the last 1/4 tank or so would feed reliably, particularly if you start going a bit uphill.

I agree with Jim.

Unneeded parts cost money and manufacturers don't typically do that, engineering and/or field testing must have shown a need for it or it wouldn't be there.

Warren, you must be REALLY bored and/or lonely to have the spare time to fret over how a tractor was designed and built nearly 60 years ago!

(Just say'in!)

Ha ha. Neither bored nor lonely. Just curious.

 

[Dave H (MI)]

I'm sure the design just required it. In the later 60's like that they had to take more into consideration in designing and likely there was a safety issue or other that required the tank and carb to be where they were. So add a pump. They were heading in that direction anyway. I have a picture on my left here of my grandfathers model T pickup. I guess when you got low on gas and wanted to go up a hill you had to back it up or it would starve for fuel...or maybe they were just pulling my leg.

 

[fastfarmall]

I never had a 930 Case Comfort King row crop, or even drove one, but the tank was in back behind the seat, the fuel line was on the left side, when they plowed, they would run out of fuel, so they had to put two fuel draws on it, one on the right also!