Massey-Harris 81
The Massey-Harris 81 is a tractor produced by Massey Harris. It is equipped with a 123.7 ci 2.0 L engine. Transmission: 4 forward and 1 reverse. Operating weight: 2,895 lbs 1313 kg.
Fuel & Capacities
12 gal
45.4 L
Transmission
4 forward and 1 reverse
Operating Weight
2,895 lbs
1313 kg
Overview
 | 1941 - 1946
Row-Crop tractor |
|---|
Production | |
|---|---|
Manufacturer | Massey-Harris |
Row-Crop tractor | |
Original price | $1,121 (1946) |
Variants | |
|---|---|
81R | row-crop gasoline |
81S | standard gasoline |
82 | distillate |
Massey-Harris 81 Engine | |
|---|---|
Continential 2.0L 4-cyl gasoline | |
Fuel tank | 12 gal
45.4 L |
Engine details ...  | |
Massey-Harris 81 Transmission | |
|---|---|
4-speed unsynchronized gear | |
Transmission details ...  |
Massey-Harris 81 Power | |
|---|---|
Drawbar (claimed) | 16 hp
11.9 kW |
PTO (claimed) | 26 hp
19.4 kW |
Drawbar (tested) | 20.79 hp
15.5 kW |
Belt (tested) | 27.07 hp
20.2 kW |
Performance test details ...  | |
Mechanical | |
|---|---|
Two-wheel drive | |
Steering | manual |
Open operator station. | |
Dimensions & Tires | |
|---|---|
Weight | 2,895 lbs
1313 kg |
Front tire | 4.00x15 |
Rear tire | 9.00x32 |
Full dimensions and tires ...  | |
Engine
Engine Detail — 123.7 ci / 2.0 L Gasoline
Manufacturer | Continential F124 |
Fuel Type | Gasoline |
Configuration | 4-cylinder, liquid-cooled vertical L-head |
Displacement | 123.7 ci
2.0 L |
Bore/Stroke | 3.00x4.375 inches
76 x 111 mm |
Fuel system | Marvel-Schebler TSX-28 carburetor |
Rated RPM | 1500 |
Starter volts | 6 |
Coolant capacity | 11 qts
10.4 L |
Transmission
Transmission — 4 forward and 1 reverse unsynchronized gear
Type | unsynchronized gear |
Gears | 4 forward and 1 reverse |
Clutch | dry disc |
 | |
Dimensions
Massey-Harris 81 Tires | |
|---|---|
Ag front | 4.00x15 |
Ag rear | 9.00x32 |
Dimensions | |
|---|---|
Length | 119 inches
302 cm |
Height | 58 inches
147 cm |
Weight | 2,895 lbs
1313 kg |
Tests
Nebraska Tractor Test 376 | |
|---|---|
Gasoline 4-speed 2WD
September 29 - October 20, 1941
Link: Nebraska Tractor Test 376 file | |
Belt power (max) | 27.07 hp
20.2 kW |
Belt fuel use (max) | 2.5 gal/hour
9.5 l/hour |
Drawbar performance | |
Max power | 20.79 hp
15.5 kW |
Gear 3 used for power test. | |
Max pull | 2,898 lbs
1314 kg |
Gear 1 used for pull test. | |
Photos
Massey-Harris 81R.
Massey-Harris 81R row-crop tractor.
Massey-Harris 81R operator station and controls.
Fluids, Capacities & Working Autonomy
Standard fluid requirements, service intervals, and continuous runtime estimates for Massey Harris Massey-Harris 81.
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
Massey Harris Massey-Harris 81 Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for Massey Harris Massey-Harris 81.
Converted Equivalents:
Horsepower (HP)0 hp
Kilowatts (kW)0 kW
Metric Horsepower (PS / CV)0 PS
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