Allis-Chalmers B Specs ( 1938-1957 )
Production
| Description | Row-Crop tractor / Original price was $1,500 in 1957 |
|---|---|
| Factories | West Allis, Wisconsin, USA |
| Manufacturer | Allis Chalmers |
| Total built | 120,783 |
Engine
| Engine type | Allis-Chalmers 2.1L 4-cyl gasoline / Allis-Chalmers 1.9L 4-cyl gasoline / Waukesha 1.9L 4-cyl gasoline |
|---|---|
| Fuel tank | 12 gal (45.4 L) |
| Air cleaner | oil bath |
| Bore/Stroke | 3.375x3.50 inches (86 x 89 mm) / 3.25x3.50 inches (83 x 89 mm) / 3.00x4.00 inches (76 x 102 mm) |
| Compression | 5.75:1 / 4.92:1 |
| Coolant capacity | 8 qts (7.6 L) |
| Description | Allis-Chalmers CE / gasoline / 4-cylinder / liquid-cooled / Final engine, used from 1943 on, SN 64501 / Allis-Chalmers BE / gasoline / 4-cylinder / liquid-cooled vertical I-head / Second engine, used until 1943, SN 64500 / Waukesha / gasoline / 4-cylinder / liquid-cooled / Original engine, used in 1937 on the first 96 tractors built |
| Displacement | 125.2 ci (2.1 L) / 116.1 ci (1.9 L) / 113 ci (1.9 L) |
| Exhaust valve clearance | 0.010 inches (hot) (0.254 mm) / 0.010 inches (hot) (0.254 mm) |
| Firing order | 1-2-4-3 / 1-2-4-3 |
| Intake valve clearance | 0.010 inches (hot) (0.254 mm) / 0.010 inches (hot) (0.254 mm) |
| Oil capacity | 4 qts (3.8 L) |
| Point gap | 0.020 inches (0.508 mm) / 0.020 inches (0.508 mm) |
| Rated RPM | 1500 / 1400 / 1400 |
| Sparkplug | Autolite AN 7 |
| Sparkplug gap | 0.035 inches (0.889 mm) / 0.040 inches (1.016 mm) |
| Starter volts | 6 |
| Oil capacity | 4 qts (3.8 L) |
| Engine type | Allis-Chalmers 2.1L 4-cyl gasoline / Allis-Chalmers 1.9L 4-cyl gasoline / Waukesha 1.9L 4-cyl gasoline |
| Belt (tested) | 22.25 hp (16.6 kW) |
| Drawbar (tested) | 19.51 hp (14.5 kW) |
| Plows | 1 (16-inch) |
Transmission
| 32oF [0oC]↑ | : SAE140 |
|---|---|
| 32oF [0oC]↓ | : SAE90 |
| Clutch | dry disc |
| Gears | 3 forward and 1 reverse |
| Oil capacity | 6 qts (5.7 L) |
| Oil type | 32oF [0oC]↑ : SAE140 32oF [0oC]↓ : SAE90 ([0oC][0oC]) |
| Transmission type | 3-speed unsynchronized gear |
| Type | unsynchronized gear |
Mechanical
| Cab | Open operator station. Canvas cab optional. |
|---|---|
| Description | Differential mechanical contracting band brakes |
| Drive type | Two-wheel drive |
| Steering | manual |
Hitch
| Type | Allis Snap Coupler |
|---|
PTO
| Rear PTO | transmission |
|---|---|
| Rear PTO Type | 560 |
Electrical
| Battery volts | 6 |
|---|---|
| Charging amps | 12 |
| Charging system | generator |
| Ground | positive |
Dimensions & Tires
| Ag front | 4.00-15 |
|---|---|
| Ag rear | 9-24 / 10-24 |
| Ballasted weight | 4193 lbs (1901 kg) |
| Front tread | 42 inches (106 cm) / 38 to 60 inches (96 to 152 cm) |
| Ground clearance | 21.75 inches (55 cm) |
| Height (exhaust) | 76.75 inches (194 cm) |
| Length | 110.25 inches (280 cm) |
| Rear tread | 40 to 52 inches (101 to 132 cm) / 40 to 60 inches (101 to 152 cm) |
| Shipping weight | 2060 lbs (934 kg) |
| Wheelbase | 73.4 inches (186 cm) |
| Width | 52.7 inches (minimum) (133 cm) |
| Front tire | 4.00-15 |
| Rear tire | 9-24 |
| Weight | 2060 lbs (934 kg) |
| Wheelbase | 73.4 inches (186 cm) |
B Serial Number Location
| Description | On top of transmission case, by shift lever. English-built models have an 'EB' serial number. |
|---|
B Serial Numbers
| 1938 | 97 |
|---|---|
| 1939 | 11800 |
| 1940 | 33502 |
| 1941 | 49721 |
| 1942 | 56782 |
| 1943 | 64501 |
| 1944 | 65502 |
| 1945 | 70210 |
| 1946 | 72265 / 1001 (IB) |
| 1947 | 73370 / 1003 (IB) |
| 1948 | 80556 / 1010 (IB) |
| 1949 | 92295 / 1282 (IB) |
| 1950 | 102393 / 1556 (IB) |
| 1951 | 114527 / 1879 (IB) / 4001 (EB) |
| 1952 | 118674 / 2219 (IB) / 6861 (EB) |
| 1953 | 122310 / 2570 (IB) / 9200 (EB) |
| 1954 | 124201 / 11120 (EB) |
| 1955 | 124711 |
| 1956 | 126497 |
| 1957 | 127186 |
| Description | FAQ: How to read a serial number table. |
| Final | 127461 |
Belt Pulley
| Diameter | 8 inches (20 cm) |
|---|---|
| RPM | 1053 |
| Width | 5.5 inches (13 cm) |
Nebraska Tractor Test 302
| Belt fuel use (max) | 1.5 gal/hour (5.7 l/hour) |
|---|---|
| Belt power (max) | 15.68 hp (11.7 kW) |
| Description | 116 ci gas 3-speed 2WDMay 31 - June 8, 1938Link: Nebraska Tractor Test 302 file / Drawbar performance / Gear 2 used for power test. / Gear 2 used for pull test. |
| Max power | 12.97 hp (9.7 kW) |
| Max pull | 1,473 lbs (668 kg) |
Nebraska Tractor Test 439
| Belt fuel use (max) | 2.1 gal/hour (7.9 l/hour) |
|---|---|
| Belt power (max) | 22.25 hp (16.6 kW) |
| Description | 125 ci gas 3-speed 2WDMay 17 - 24, 1950Link: Nebraska Tractor Test 439 file / Drawbar performance / Gear 2 used for power test. / Gear 1 used for pull test. |
| Max power | 19.51 hp (14.5 kW) |
| Max pull | 2,667 lbs (1209 kg) |
References
| Description | A New Adventure in Farming published in 1941, by Allis Chalmers / Two Snappy Wartime Tractors published in 1942, by Allis Chalmers / Operating Directions Model B Tractor (TPL-28G) / Farm Equipment Service Manual (SM-3) / Build a Better Farm published in 1940, by Allis Chalmers / Farm Power Facts published in 1954, by Allis Chalmers |
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Tractor Tests
| Description | NTTL 302: 116 ci gas 3-speed 2WD / NTTL 439: 125 ci gas 3-speed 2WD |
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Variants
| IB | industrial tractor |
|---|