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Years in Production / 1936–1939
Massey-Harris
Pacemaker
Explore the specifications, hardware, and original references for the Massey-Harris Pacemaker.
30hp
Engine estimate · from belt
2WD Only
Drive
1936–1939
Production years
Massey-Harris
Manufacturer
Pacemaker / 01
At a glance
Production
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.
- Manufacturer
- Massey-Harris
Belt Pulley
- Diameter
- 12 inches30 cm
- Width
- 6.25 inches15 cm
- Rpm
- 832
Mechanical
Two-wheel drive
Manual steering
Open operator station.
Pacemaker / 02
Under the hood
Engine Detail
Massey-Harris
gasoline
4-cylinder
liquid-cooled vertical I-head
- Displacement
- 247.7 ci4.1 L
- Bore Stroke
- 3.875x5.25 inches98 x 133 mm
- Rated Rpm
- 1200
- Rated Rpm
- 1400 *Twin Power option
- Coolant Capacity
- 20 qts18.9 L
- Fuel Type
- gasoline
- Cylinders
- 4
- Cooling
- liquid-cooled vertical I-head
Engine Options
Massey-Harris 4.1L 4-cyl gasoline
- Fuel Tank
- 18 gal68.1 L
- Aux Fuel
- 1.6 gal6.1 L
Pacemaker / 03
Gears & controls
Transmission
- Transmission Type
- gear
- Gears
- 4 forward and 1 reverse
- Clutch
- mechanical dry disc
Pacemaker / 04
Size. Stance. Footprint.
Dimensions And Tires
- Wheelbase
- 78 inches198 cm
- Weight
- 3700 lbs1678 kg
- Front Tire
- 28x5
- Rear Tire
- 44x10
Tires And Tracks
- Front Ag
- 28x5 steel
- Front Ag
- 6.00x16
- Rear Ag
- 44x10 steel
- Rear Ag
- 11.25x24
Pacemaker / 05
Tractor Photos
Pacemaker / 06
Tests (NTTL)
Nebraska Tractor Test 266
Gasoline 4-speed 2WDAugust 10 - 19, 1936
Drawbar performance
Gear 2 used for power test.
Gear 1 used for pull test.
- Id
- 266
- Belt Power Max
- 29.1 hp21.7 kW
- Belt Fuel Use Max
- 3.1 gal/hour11.7 l/hour
- Max Power
- 19.76 hp14.7 kW
- Max Pull
- 2878 lbs1305 kg
Nebraska Tractor Test 294
Gasoline Twin Power 4-speed 2WDOctober 25 - November 16, 1937
Drawbar performance
Gear 3 used for power test.
Gear 1 used for pull test.
- Id
- 294
- Belt Power Max
- 42.13 hp31.4 kW
- Belt Fuel Use Max
- 4.2 gal/hour15.9 l/hour
- Max Power
- 30.58 hp22.8 kW
- Max Pull
- 3236 lbs1467 kg