| Manufacturer |
Massey-Harris |
| Price |
- |
| Model |
102 Junior |
| Equipment Type |
- |
| Factory |
Racine, Wisconsin, USA |
MASSEY-HARRIS 102 JUNIOR POWER
| Drawbar (claimed) |
20.5hp / 15.3kW |
| PTO (claimed) |
26.3hp / 19.6kW |
| Plows |
2 |
ENGINES OVERVIEW
The Massey-Harris 102 Junior tractor, equipped with either a Continental 2.3L or 2.7L 4-cylinder distillate engine, offers versatility in fuel sources, making it suitable for various agricultural applications. The 2.7L engine provides increased power and torque, beneficial for heavier tasks, while the 2.3L variant may yield better fuel efficiency for lighter work. However, potential challenges include sourcing distillate fuel and maintenance complexity due to older engine technology.
| Description |
Continental 2.3L 4-cyl distillate Continental 2.7L 4-cyl distillate |
ENGINE DETAIL 1
The Massey-Harris 102 Junior features a Continental MFA distillate engine, which is notable for its efficient operation using a fuel type similar to kerosene, potentially enhancing fuel economy in agricultural tasks. With a displacement of 139.6ci and rated RPM of 1800, it delivers adequate power for light to moderate farming applications while the 6-volt starter system may present challenges in cold weather starts compared to modern 12-volt systems. Overall, this tractor is well-suited for small farms focusing on straightforward, reliable power but may require additional attention for optimal fuel application and starting conditions.
| Description |
Continental MFA distillate 4-cylinder liquid-cooled vertical L-head Original engine used for the first few years of production |
| Displacement |
139.6ci / 2.3L |
| Bore/Stroke |
3.1875x4.375inches / 81x 111mm |
| Rated RPM |
1800 |
| Starter volts |
6 |
ENGINE DETAIL 2
The Massey-Harris 102 Junior features a robust Continental distillate 4-cylinder L-head engine with a displacement of 162ci (2.7L), providing adequate power for small to medium farming tasks from the early 1940s. The bore and stroke dimensions (3.4375x4.375 inches) suggest it has a longer stroke to enhance torque delivery, advantageous for pulling implements. However, the 6-volt starter system may pose challenges in cold weather or under heavy load conditions, potentially requiring upgrades for modern reliability.
| Description |
Continental distillate 4-cylinder liquid-cooled vertical L-head Final engine, introduced around 1942 |
| Displacement |
162ci / 2.7L |
| Bore/Stroke |
3.4375x4.375inches / 87x 111mm |
| Starter volts |
6 |
MASSEY-HARRIS 102 JUNIOR ENGINES
The Massey-Harris 102 Junior, equipped with either a Continental 2.3L or 2.7L 4-cylinder distillate engine, offers versatility for lighter agricultural tasks. Its fuel capacity of 10 gallons (37.9L) enhances operational endurance, but the distillate fuel may limit availability compared to diesel alternatives. This model is ideal for small farms or gardens where efficiency is balanced with economic fuel options.
| Description |
Continental 2.3L 4-cyl distillate Continental 2.7L 4-cyl distillate |
| Fuel tank |
10gal / 37.9L |
TRANSMISSION
The Massey-Harris 102 Junior tractor features a simple gear system with 4 forward and 1 reverse speed, optimizing ease of use for basic agricultural tasks. This limited gear ratio may enhance maneuverability in confined spaces but can restrict performance in varied terrain conditions where multiple speed options are advantageous. Ideal for small farms or gardening applications, its straightforward mechanics cater well to novice operators or those requiring a reliable, low-maintenance solution.
| Type |
gear |
| Gears |
4 forward and 1 reverse |
MECHANICAL
The Massey-Harris 102 Junior, equipped with a 4x2 2WD chassis and 4-speed gear transmission, offers a robust yet straightforward operation ideal for light agricultural tasks and short-distance hauling. The manual steering system and open operator station may enhance driver engagement and visibility but could pose challenges in terms of comfort and handling precision during extended use. Overall, this tractor is best suited for smaller farms or gardens where ease of maintenance and maneuverability are prioritized.
| Chassis |
4x2 2WD |
| Steering |
manual |
| Cab |
Open operator station |
| Transmission |
4-speed gear |
MASSEY-HARRIS 102 JUNIOR TIRES
The Massey-Harris 102 Junior is equipped with 4.75-15 front tires and 10.00-36 rear tires, offering a high flotation capability which is beneficial for soft or uneven terrain. One advantage of such a tire configuration is improved traction and stability when engaging in field work, while the larger rear tires can enhance drawbar pull for heavy-duty applications. However, the tractor's overall maneuverability may be compromised in tighter spaces due to the wide rear stance.
| Ag front |
4.75-15 |
| Ag rear |
10.00-36 |
DIMENSIONS
DIMENSIONS & TIRES
The Massey-Harris 102 Junior tractor, weighing 3,400 lbs (1542 kg), offers a balance between stability and maneuverability, making it suitable for small to medium farming tasks. Its front tire size (5.00-15) provides good steering control, while the larger rear tire (10.00-36) enhances traction and load-bearing capacity. However, be mindful of its weight for towing applications, as it may limit performance in sloped terrains or when operating heavy implements.
| Weight |
3,400lbs / 1542kg |
| Front tire |
5.00-15 |
| Rear tire |
10.00-36 |
102 JUNIOR SERIAL NUMBERS
| Location |
On frame, rear-left side near transmission case |
| 1939 |
387001 |
| 1940 |
387031 |
| 1941 |
387127 |
| 1942 |
387419 |
| 1943 |
387601 |
| 1944 |
387844 |
| 1945 |
388240 |
| 1946 |
388995 |
