John Deere GPWT Engine


John Deere GPWT tractor photo
1929 - 1933
Two-Cylinder Letter Series
Row-Crop tractor
Engines overview
John Deere 5.1L 2-cyl kerosene
John Deere 5.6L 2-cyl kerosene
Engine Detail
John Deere
kerosene
2-cylinder
liquid-cooled
Original engine, used until 1930. Water-injection system was used to prevent detonation ("knocking") with low quality fuels. All GP-P tractors used the 5.75-inch bore engine.
Displacement311.6 ci
5.1 L
Bore/Stroke5.75x6.00 inches
146 x 152 mm
Air cleaneroil bath
Rated RPM900
Coolant capacity36 qts
34.1 L
Engine Detail
John Deere
kerosene
2-cylinder
liquid-cooled
Introduced at S/N 402040 in July of 1930. The new engine had a larger bore with lower compression. It had slightly more power with better fuel economy. The lower compression eliminated the pre-ignition problem when using low-quality fuel, so the water-injection system was eliminated.
Displacement339.3 ci
5.6 L
Bore/Stroke6.00x6.00 inches
152 x 152 mm
Air cleaneroil bath
Rated RPM950
Coolant capacity36 qts
34.1 L
Page information
Contact: Peter Easterlund
Updated on June 4, 2016
Copyright 2022 TractorData LLC
©2000-2022 - TractorData.com®. Notice: Every attempt is made to ensure the data listed is accurate. However, differences between sources, incomplete listings, errors, and data entry mistakes do occur. Consult official literature from the manufacturer before attempting any service or repair.