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Massey-Harris Pacemaker

The Massey-Harris Pacemaker is a tractor produced by Massey Harris. It is equipped with a 247.7 ci 4.1 L engine. Transmission: 4 forward and 1 reverse. Operating weight: 3700 lbs 1678 kg.

Fuel & Capacities
18 gal 68.1 L
Transmission
4 forward and 1 reverse
Operating Weight
3700 lbs 1678 kg

Overview

Massey-Harris Pacemaker tractor photo
1936 - 1939 Standard-tread tractor
Production
Manufacturer
Massey-Harris
Standard-tread tractor
Built in Racine, Wisconsin, USA
The Massey-Harris Pacemaker replaced the Wallis 12/20 in Massey's line. The Twin Power feature increased engine rpms to provide additional horsepower for belt work. The Pacemaker was a standard (wide) front tractor, while the Challenger was the row-crop version.
Massey-Harris Pacemaker Engine
Massey-Harris 4.1L 4-cyl gasoline
Fuel tank
18 gal 68.1 L
Aux. fuel
1.6 gal 6.1 L
Engine details ...
Massey-Harris Pacemaker Transmission
4-speed gear
Transmission details ...
Massey-Harris Pacemaker Power
Drawbar (claimed)
16 hp 11.9 kW
Belt (claimed)
27 hp 20.1 kW
Drawbar (tested)
30.58 hp 22.8 kW
Belt (tested)
42.13 hp 31.4 kW
Performance test details ...
Mechanical
Two-wheel drive
Manual steering
Open operator station.
Dimensions & Tires
Wheelbase
78 inches 198 cm
Weight
3700 lbs 1678 kg
Front tire
28x5
Rear tire
44x10
Full dimensions and tires ...
Belt Pulley
Diameter
12 inches 30 cm
Width
6.25 inches 15 cm
RPM
832

Engine

Engine Detail — 247.7 ci / 4.1 L Gasoline

Manufacturer
Massey-Harris
Fuel Type
Gasoline
Configuration
4-cylinder, liquid-cooled vertical I-head
Displacement
247.7 ci 4.1 L
Bore/Stroke
3.875x5.25 inches 98 x 133 mm
Rated RPM
1200
1400 *Twin Power option
Coolant capacity
20 qts 18.9 L

Transmission

Transmission — 4 forward and 1 reverse gear

Type
gear
Gears
4 forward and 1 reverse
Clutch
mechanical dry disc
Pacemaker gear speeds

Dimensions

Massey-Harris Pacemaker Tires
Ag front
28x5 steel
Ag rear
44x10 steel
Ag front
6.00x16
Ag rear
11.25x24
Dimensions
Wheelbase
78 inches 198 cm
Length
122 inches 309 cm
Height
53 inches 134 cm
Weight
3700 lbs 1678 kg

Tests

Tractor Tests
NTTL 266: gasoline 4-speed 2WD
NTTL 294: gasoline Twin Power 4-speed 2WD
Nebraska Tractor Test 266
Gasoline 4-speed 2WD August 10 - 19, 1936 Link: Nebraska Tractor Test 266 file
Belt power (max)
29.1 hp 21.7 kW
Belt fuel use (max)
3.1 gal/hour 11.7 l/hour
Drawbar performance
Max power
19.76 hp 14.7 kW
Gear 2 used for power test.
Max pull
2878 lbs 1305 kg
Gear 1 used for pull test.
Nebraska Tractor Test 294
Gasoline Twin Power 4-speed 2WD October 25 - November 16, 1937 Link: Nebraska Tractor Test 294 file
Belt power (max)
42.13 hp 31.4 kW
Belt fuel use (max)
4.2 gal/hour 15.9 l/hour
Drawbar performance
Max power
30.58 hp 22.8 kW
Gear 3 used for power test.
Max pull
3236 lbs 1467 kg
Gear 1 used for pull test.

Photos

Massey-Harris Pacemaker

Massey-Harris Pacemaker

Fluids, Capacities & Working Autonomy

Standard fluid requirements, service intervals, and continuous runtime estimates for Massey Harris Massey-Harris Pacemaker.

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 Pacemaker Specification Unit Converter

Convert power, fluid capacities, and operating weights between metric and imperial standards for Massey Harris Massey-Harris Pacemaker.

Converted Equivalents:

Horsepower (HP)0 hp
Kilowatts (kW)0 kW
Metric Horsepower (PS / CV)0 PS

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