J.I. Case 311-B: all source data
All 91 values recorded for this model, as the source lists them and in its units. The spec sheet shows the same data checked, typed and converted.
Overview
Production| Manufacturer | J.I. Case |
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| (no label) | Row-Crop tractor |
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| (no label) | Built in Rock Island, Illinois, USA |
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| Total built | 2,339 |
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Engine| (no label) | J.I. Case 2.4L 4-cyl gasoline |
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Transmission| (no label) | 4-speed gear |
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| (no label) | 12-speed gear |
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Power| PTO (claimed) | 37 hp | 27.6 kW |
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| Plows | 3 |
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Mechanical| (no label) | Two-wheel drive |
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| (no label) | Manual steering |
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| (no label) | Differential mechanical dry disc brakes |
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| (no label) | Open operator station. |
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Capacity| Fuel | 13 gal | 49.2 L |
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| Hydraulic system | 3 gal | 11.4 L |
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Hydraulics| Type | open center |
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| Capacity | 3 gal | 11.4 L |
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| Pressure | 1200 psi | 82.7 bar |
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Pto| Rear PTO | continuous |
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| Rear PTO Type | 540 (1.375) |
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| Engine RPM | 540 (1.375) |
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Dimensions| Wheelbase | 84.5 inches (tricycle) | 214 cm |
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| Wheelbase | 79.5 inches (GP) | 201 cm |
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| Weight | 4076 lbs | 1848 kg |
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| Front tire | 5.50-16 |
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| Rear tire | 11-28 |
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Serial location| (no label) | Serial number plate on the left side of the tractor's instrument panel. |
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Belt pulley| Diameter | 9.25 inches | 23 cm |
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| Width | 6.375 inches | 16 cm |
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| RPM | 1290 |
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| Speed | 3125 ft/min | 952.50 meters/min |
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Electrical| Ground | positive |
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| Charging system | generator |
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| Battery volts | 12 |
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| Battery AH | 50 |
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Engine
Engine detail| (no label) | J.I. Case |
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| (no label) | gasoline |
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| (no label) | 4-cylinder |
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| (no label) | liquid-cooled |
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| Displacement | 148 ci | 2.4 L |
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| Bore/Stroke | 3.375x4.125 inches | 86 x 105 mm |
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| Fuel system | carburetor |
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| Air cleaner | oil bath |
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| Compression | 7.1:1 |
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| Rated RPM | 1900 |
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| Idle RPM | 500-2050 |
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| Firing order | 1-3-4-2 |
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| Starter | electric |
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| Starter volts | 12 |
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| Coolant capacity (Coolant) | 13 qts | 12.3 L |
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| Sparkplug | Champion D-16 |
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| Sparkplug gap | 0.025 inches | 0.635 mm |
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| Intake valve clearance | 0.014 inches (cold) | 0.356 mm |
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| Exhaust valve clearance | 0.014 inches (cold) | 0.356 mm |
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Engine oil| Oil capacity | 5 qts | 4.7 L |
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| Oil change | 100 h |
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Transmission
Transmission options| (no label) | 4-speed gear |
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| (no label) | 12-speed gear |
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Transmission| Type | gear |
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| Gears | 4 forward and 1 reverse |
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| Clutch | 235mm dry disc |
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| Oil capacity | 28 qts | 26.5 L |
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| Transmission | Tripl-Range |
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| Type | gear |
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| Gears | 12 forward and 3 reverse |
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| Oil capacity | 28 qts | 26.5 L |
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| (no label) | Four gears, plus reverse, in three ranges. |
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| 1 | Foot clutch |
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| 2 | Hand clutch |
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| 3 | Throttle |
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| 4 | Gear shift |
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| 5 | Range shift |
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| 6 | Brakes |
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Dimensions
Tires| Ag front | 5.50-16 |
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| Ag rear | 11-28 |
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| Ag rear | 10-28 |
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| Ag rear | 12-28 |
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Dimensions| Wheelbase | 84.5 inches (tricycle) | 214 cm |
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| Wheelbase | 79.5 inches (GP) | 201 cm |
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| Length | 130 inches (tricycle) | 330 cm |
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| Length | 127.375 inches (GP) | 323 cm |
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| Width | 79.625 inches | 202 cm |
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| Height (steering wheel) | 61 inches | 154 cm |
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| Weight | 4076 lbs | 1848 kg |
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| Clearance (rear axle) | 21.5 inches | 54 cm |
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| Front tread | 5.5/11.5 inches (tricycle) | 13/29 cm |
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| Front tread | 52 to 80 inches (GP) | 132 to 203 cm |
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| Front tread | 48 to 72 inches (GP) | 121 to 182 cm |
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| Front tread | 44 to 64 inches (GP) | 111 to 162 cm |
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| Rear tread | 48 to 88 inches | 121 to 223 cm |
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