| Manufacturer |
John Deere |
| Price |
15,613(USD) |
| Model |
B |
| Equipment Type |
Row-Crop Tractors |
| Factory |
Waterloo, Iowa, USA |
ENGINE DETAIL
The John Deere B tractor features a 2-cylinder, 149ci (2.4L) liquid-cooled engine with a low compression of 4.71:1, facilitating operation on various fuel types, which is advantageous in areas with limited fuel access. Its hand-crank starter and thermo-siphon cooling system, while traditional, pose challenges in terms of ease of use and maintenance compared to modern systems. The rated RPM of 975 suggests this tractor is designed for optimal torque at lower speeds, making it suitable for heavy-duty farm tasks rather than high-speed applications.
| Description |
John Deere all fuel 2-cylinder liquid-cooled |
| Displacement |
149ci / 2.4L |
| Bore/Stroke |
4.25x5.25inches / 108x 133mm |
| Fuel system |
Marvel-Schebler DLTX-10 |
| Cooling system |
thermo-siphon |
| Air cleaner |
oil bath |
| Compression |
4.71:1 |
| Rated RPM |
975 |
| Firing order |
1-2 |
| Starter type |
hand-crank |
| Oil capacity |
7qts / 6.6L |
| Coolant capacity |
22qts / 20.8L |
| Sparkplug gap |
0.030inches / 0.762mm |
| Point gap |
0.015inches / 0.381mm |
| Intake valve clearance |
0.020inches / 0.508mm |
| Exhaust valve clearance |
0.020inches / 0.508mm |
JOHN DEERE B ENGINE
The John Deere B tractor features a robust 2.4L 2-cylinder all-fuel engine, allowing for versatile fuel options including gasoline, kerosene, and distillate. With a 12-gallon main fuel tank and an auxiliary 1-gallon tank, operators can enjoy extended run times suitable for various agricultural tasks. However, the small auxiliary fuel capacity may necessitate frequent refills for extended operations, potentially limiting operational efficiency on larger farms.
| Description |
John Deere 2.4L 2-cyl all fuel |
| Fuel tank |
12gal / 45.4L |
| Aux. fuel |
1 gal/3.8 L |
TRANSMISSION
The John Deere B tractor features an unsynchronized gear system with 4 forward and 1 reverse gear, providing limited speed flexibility but necessitating precise shifting to avoid gear clash. Its dry disc clutch offers reliable engagement but can be less forgiving in high-stress situations, potentially leading to premature wear under heavy load. This tractor is well suited for lighter agricultural tasks and vintage restoration, although operators should be cautious of clutch maintenance to ensure optimal performance.
| Manufacture |
John Deere |
| Type |
unsynchronized gear |
| Gears |
4 forward and 1 reverse |
| Clutch |
dry disc |
| Description |
Gear shift lever with speed 1, 2, and reverse. High and low range shift lever |
JOHN DEERE B TRANSMISSION
The John Deere B tractor features a 4-speed unsynchronized gearbox, allowing for direct gear engagement but requiring careful timing during shifts to avoid damage. This design can enhance operator skill development; however, it may pose a challenge for inexperienced users. It's ideal for farm operations where consistent speed and torque are essential, but may not suit applications requiring frequent gear changes.
| Description |
4-speed unsynchronized gear |
MECHANICAL
The John Deere B tractor features a two-wheel drive system that enhances maneuverability in light to moderate terrain but may struggle with traction in heavy soil conditions. The mechanical expanding shoe brakes provide reliable stopping power; however, they may require frequent adjustments for optimal performance. Operating with a manual steering system promotes direct control but may lead to increased physical strain during prolonged use, particularly in tight turns.
| Description |
Two-wheel drive Differential mechanical expanding shoe brakes Open operator station with pressed steel seat |
| Steering |
manual |
POWER TAKE-OFF (PTO)
| Rear PTO |
transmission |
| Rear RPM |
540 |
JOHN DEERE B TIRES
The John Deere B tractor features 22x3.25 steel agricultural front tires and 48x5.25 steel agricultural rear tires, providing excellent durability and traction for various field operations. The steel construction is advantageous for longevity and resistance to punctures, though it may result in a harsher ride over rough terrain. Consider using this tractor in applications requiring consistent power and stability, such as light plowing or cultivating.
| Ag front |
22x3.25 (steel) |
| Ag rear |
48x5.25 (steel) |
DIMENSIONS & TIRES
The John Deere B tractor, weighing 3,275 lbs (1,485 kg), features a front tire size of 22x3.25 inches and rear tires measuring 48x5.25 inches, which provide excellent stability and traction for agricultural tasks. The larger rear tires enhance load distribution and soil compaction, making it suitable for tilling and plowing in varied soil conditions. However, its weight may limit maneuverability in tight spaces, making it more suited for open fields and larger farms.
| Weight |
3,275lbs / 1485kg |
| Front tire |
22x3.25 |
| Rear tire |
48x5.25 |
B SERIAL NUMBERS
| 1939 |
60000 |
| 1949 |
230044 |
| 1952 |
293030 |
| Final |
310772 |
B SERIAL LOCATION
| Description |
The left side of the transmission case, under the governor |
BELT PULLEY
| Diameter |
9.6875inches / 24cm |
| Width |
7.25inches / 18cm |
| RPM |
1250 |
| Speed |
3110ft/min / 947.93meters/min |
ELECTRICAL
