Allis Chalmers WC

The Allis Chalmers WC is a tractor produced by Allis Chalmers. It is equipped with a 201 ci 3.3 L engine. Transmission: 4 forward and 1 reverse. Operating weight: 2700 to 3792 pounds.

Fuel & Capacities

Gasoline

Transmission

4 forward and 1 reverse

Operating Weight

2700 to 3792 pounds

Overview

	1933 - 1948 Model year 1933-19371938-1948 Row-Crop tractor

Production
Manufacturer	Allis Chalmers
Row-Crop tractor
Built in West Allis, Wisconsin, USA
Total built	178,202
The Allis-Chalmers WC was the first tractor tested on rubber tires at Nebraska. The WC was styled in 1938, starting at serial number WC74330. The styled WC featured a rounded radiator and larger tires.

Variants
WF	Standard front version (wide)

Allis Chalmers WC Transmission
4-speed non-synchronized gear
Transmission details ...

Allis Chalmers WC Power
Drawbar (claimed)	12 hp 8.9 kW
Belt (claimed)	21 hp 15.7 kW
Plows	2
Drawbar (tested)	18.72 hp 14.0 kW
Belt (tested)	25.45 hp 19.0 kW
Performance test details ...

Mechanical
Two-wheel drive
Steering	manual
Differential hand-operated mechanical drum brakes
Open operator station with steel pan seat.

Power Take-off (PTO)
Rear PTO	transmission
Rear PTO Type	535

Dimensions & Tires
Weight	2700 to 3792 pounds
Front tire	24x4
Rear tire	40x6
Full dimensions and tires ...

Belt Pulley
Diameter	9 inches 22 cm
Width	6.5 inches 16 cm
RPM	1170

Electrical
Charging system	generator
Battery volts	6
Battery AH	95

References

Build a Better Farm published in 1940, by Allis Chalmers

Engine

Engine options
Waukesha 3.0L 4-cyl gasoline
Allis-Chalmers 3.3L 4-cyl distillate
Allis-Chalmers 3.3L 4-cyl gasoline

Engine Detail — 186 ci / 3.0 L Gasoline

Manufacturer	Waukesha
Fuel Type	Gasoline
Configuration	4-cylinder, liquid-cooled
Used on first 25 tractors built
Displacement	186 ci 3.0 L
Bore/Stroke	3.625x4.50 inches 92 x 114 mm
Starter type	manual crank

Engine Detail — 201 ci / 3.3 L

Manufacturer	Allis-Chalmers
Configuration	4-cylinder, liquid-cooled vertical I-head
distillate
Low-compression engine designed to operate on fuels rated at 30 octane or higher.
Displacement	201 ci 3.3 L
Bore/Stroke	4.00x4.00 inches 102 x 102 mm
Fuel use	2.119 gal/hour 8.0 l/hour
Air cleaner	oil bath
Compression	4.2:1
Rated RPM	1300
Firing order	1-2-4-3
Starter type	manual crank
	electric
Coolant capacity	14 qts 13.2 L
Sparkplug gap	0.030 inches 0.762 mm
Point gap	0.020 inches 0.508 mm
Intake valve clearance	0.010 inches (hot) 0.254 mm
Exhaust valve clearance	0.010 inches (hot) 0.254 mm
Oil capacity	6 qts 5.7 L

Engine Detail — 201 ci / 3.3 L Gasoline

Manufacturer	Allis-Chalmers
Fuel Type	Gasoline
Configuration	4-cylinder, liquid-cooled vertical I-head
Displacement	201 ci 3.3 L
Bore/Stroke	4.00x4.00 inches 102 x 102 mm
Fuel use	2.861 gal/hour 10.8 l/hour
Air cleaner	oil bath
Compression	5.0:1
Rated RPM	1300
Firing order	1-2-4-3
Starter type	manual crank
	electric
Coolant capacity	14 qts 13.2 L
Sparkplug gap	0.030 inches 0.762 mm
Point gap	0.020 inches 0.508 mm
Intake valve clearance	0.010 inches (hot) 0.254 mm
Exhaust valve clearance	0.010 inches (hot) 0.254 mm
Oil capacity	6 qts 5.7 L

Transmission

Transmission — 4 forward and 1 reverse non-synchronized gear

Type	non-synchronized gear
Gears	4 forward and 1 reverse
Oil capacity	4 qts 3.8 L
	5 qts (with PTO) 4.7 L
Oil type	32oF [0oC]↑ : SAE140 32oF [0oC]↓ : SAE90	32oF [0oC]↑	: SAE140	32oF [0oC]↓	: SAE90
32oF [0oC]↑	: SAE140
32oF [0oC]↓	: SAE90
Operated via gearshift lever and foot clutch. Fourth gear was not recommended for tractors equipped with steel wheels.
32oF [0oC]↑	: SAE140
32oF [0oC]↓	: SAE90

Dimensions

Allis Chalmers WC Tires
Ag front	24x4 steel
Ag rear	40x6 steel
Ag front	5.25-17
Ag rear	11.25x24

Dimensions
Length	136 inches 345 cm
Width	76 inches 193 cm
Height	63 inches 160 cm
Ground clearance	29 inches (rear axle) 73 cm
Rear tread	65 to 76 inches 165 to 193 cm

Allis Chalmers WC Weight
Shipping	2,700 lbs (steel) 1224 kg
	3,300 lbs (rubber) 1496 kg
Operating	3,190 lbs (steel) 1446 kg
	3,792 lbs (rubber) 1720 kg
Ballasted	4,545 lbs 2061 kg

Tests

Tractor Tests
NTTL 223: distillate 201 4-speed 2WD
NTTL 303: distillate 201 4-speed 2WD

Nebraska Tractor Test 223
Distillate 201 4-speed 2WD May 2 - 16, 1934 Link: Nebraska Tractor Test 223 file
Belt power (max)	21.48 hp 16.0 kW
Belt fuel use (max)	2.1 gal/hour 7.9 l/hour
Drawbar performance
Max power	14.36 hp (steel) 10.7 kW
	19.17 hp (rubber) 14.3 kW
Gear 2 (steel); 4 (rubber) used for power test.
Max pull	1,921 lbs (steel) 871 kg
	1,735 lbs (rubber) 786 kg

Nebraska Tractor Test 303
Distillate 201 4-speed 2WD May 31 - June 14, 1938 Link: Nebraska Tractor Test 303 file
Belt power (max)	25.45 hp 19.0 kW
Belt fuel use (max)	2.6 gal/hour 9.8 l/hour
Drawbar performance
Max power	18.72 hp (steel) 14.0 kW
	20.41 hp (rubber) 15.2 kW
Max pull	2,599 lbs (steel) 1178 kg
	3,054 lbs (rubber) 1385 kg
Gear 1 used for pull test.

Photos

Unstyled Allis-Chalmers WC on steel.

Unstyled Allis-Chalmers WC with rubber tires.

Unstyled Allis-Chalmers WC controls and operator station.

Unstyled Allis-Chalmers WC with single front wheel.

Fluids, Capacities & Working Autonomy

Standard fluid requirements, service intervals, and continuous runtime estimates for Allis Chalmers WC.

Engine Crankcase Oil

SAE 15W-40 (Heavy Duty Diesel)

Standard Spec: API CK-4 / CJ-4 Heavy Duty

Service Interval: 150 – 250 Hours

Transmission & Hydraulic System

UTTO (Universal Tractor Transmission Oil)

Standard Spec: ISO VG 46 / 68 (Wet Brake & Trans Compatible)

Service Interval: 600 – 1000 Hours

Engine Cooling System

50/50 Ethylene Glycol Pre-mix

Standard Spec: ASTM D6210 / Heavy-Duty OAT Antifreeze

Service Interval: 2 Years / 1500 Hours