Massey-Harris Pacemaker tractor specifications

1936 - 1939

1936 - 1939 Standard-tread tractor

Production

Production Manufacturer:Massey-Harris
Type:Standard-tread tractor
Factory: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 Power

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
power test details ...

1936 - 1939

Standard-tread tractor

Nebraska Tractor Test 266

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

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.

Massey-Harris Pacemaker Engine

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 ...

1936 - 1939

Standard-tread tractor

Engine Detail

Engine Detail
Massey-Harris
gasoline
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