John Deere B Engine


John Deere B tractor photo
1935 - 1952
Model year
Two-Cylinder Letter Series
Row-Crop tractor
Engine Detail
John Deere
all fuel
2-cylinder
liquid-cooled
For the 1941 model year, tractor serial number 96000, the carburetor was changed to a DLTX-34 which provided an increase of about two horsepower. Due to material shortages during World War II, tractors 148500 to 166999 used a pressurized cooling system with a steel radiator.
Displacement175 ci
2.9 L
Bore/Stroke4.50x5.50 inches
114 x 140 mm
Fuel systemMarvel-Schebler DLTX-10 (early)
 Marvel-Schebler DLTX-34 (late)
Cooling systemthermo-siphon
 water pump
Air cleaneroil bath
Compression4.71:1
Rated RPM1150
Firing order1-2
Starterhand-crank
 electric optional
Starter volts6
Oil capacity7 qts
6.6 L
Coolant capacity25 qts
23.7 L
Sparkplug gap0.030 inches
0.762 mm
Point gap0.015 inches
0.381 mm
Intake valve clearance0.020 inches*Hot
0.508 mm
Exhaust valve clearance0.020 inches*Hot
0.508 mm
Page information
Peter Easterlund - owner of TractorData.com
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Peter Easterlund - owner/author
Email: Peter@TractorData.com
Updated on April 7, 2023
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