Tractor · 1936Unverified
Massey-Harris Pacemaker
Massey-Harris Pacemaker — Standard-tread tractor · 16 hp. Reference specifications; pending source verification.
Provisional listing — the headline figure is shown; full specifications are auto-generated and pending verification against published sources.
Rated power
16 hp
Max power
14.7 kW
Weight
1678 kg
Hover a source tag to verify
Overview
ManufacturerMassey-HarrisReference
Standard-tread tractorReference
Built in Racine, Wisconsin, USAReference
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.Reference
Two-wheel driveReference
Manual steeringReference
Open operator station.Reference
Engine
Massey-Harris 4.1L 4-cyl gasolineReference
Fuel tank68.1 LReference
Aux. fuel6.1 LReference
Drawbar (claimed)11.9 kWReference
Belt (claimed)20.1 kWReference
Drawbar (tested)22.8 kWReference
Belt (tested)31.4 kWReference
Massey-HarrisReference
gasolineReference
4-cylinderReference
liquid-cooled vertical I-headReference
Displacement4.1 LReference
Bore/Stroke98 x 133 mmReference
Rated RPM1200Reference
Rated RPM1400Reference
Coolant capacity18.9 LReference
Belt power (max)21.7 kWReference
Max power14.7 kWReference
Belt power (max)31.4 kWReference
Max power22.8 kWReference
Transmission
4-speed gearReference
TypegearReference
Gears4 forward and 1 reverseReference
Clutchmechanical dry discReference
Dimensions
Wheelbase198 cmReference
Weight1678 kgReference
Front tire28x5Reference
Rear tire44x10Reference
Ag front28x5 steelReference
Ag rear44x10 steelReference
Ag front6.00x16Reference
Ag rear11.25x24Reference
Length309 cmReference
Height134 cmReference
Pacemaker Serial Numbers
Location:On rear-left portion of tractor frame.Reference
Capacities
Diameter30 cmReference
Width15 cmReference
RPM832Reference
Test results
NTTL 266: gasoline 4-speed 2WDReference
NTTL 294: gasoline Twin Power 4-speed 2WDReference
Gasoline 4-speed 2WDAugust 10 - 19, 1936Link: Nebraska Tractor Test 266 fileReference
Belt fuel use (max)11.7 l/hourReference
Drawbar performanceReference
Gear 2 used for power test.Reference
Max pull1305 kgReference
Gear 1 used for pull test.Reference
Gasoline Twin Power 4-speed 2WDOctober 25 - November 16, 1937Link: Nebraska Tractor Test 294 fileReference
Belt fuel use (max)15.9 l/hourReference
Gear 3 used for power test.Reference
Max pull1467 kgReference
Values normalized to UK metric units. Every figure is traced to at least one source; verified specs are cross-checked against two or more.