Kubota L185 Specs & Review

Kubota L185 Technical Specifications
Model Kubota L185
Manufacturing Period 1977 to 1982
Engine 45.3 cubic inches Kubota Z751 two-cylinder liquid cooled diesel
Cylinder Bore 3.0″ (76 mm)
Piston Stroke 3.22″ (82 mm)
Rated Power 15 hp (11.2 kW)
Transmission Sliding gear transmission with 8 forward and 2 reverse gears
Max. Forward Speed 13.1 mph (21 kph)
Max. Reverse Speed 9 mph (14.5 kph)
Hydraulic System Open center hydraulic system with a gear pump flow of 6.2 gal/min (23.5 l/min)
Main Relief Pressure 147 bar (2130 psi)
Front Tires (2WD) 4.00×15
Rear Tires (2WD) 9.5×24
Front Tires (4WD) 6.00×14
Rear Tires (4WD) 9.5×24
Wheelbase 60 inches (1520 mm)
Compatible Loader Kubota L1200 front end loader

Why won’t the Kubota L185 engine start?

Possible reasons include a dirty fuel filter element, no fuel injection, air leaks in the fuel-line, clogged fuel injectors, a malfunctioning fuel injection pump, or poor compression.

What could cause the engine to shut off while driving?

It might be due to the engine not being warmed up, air in the fuel pipes, uneven fuel injections, a plugged fuel filter, or defective fuel injectors.

Why does the engine start and then stall?

Incorrectly set fuel injection pump timing, a clogged fuel filter, faulty fuel injector nozzles, a damaged fuel injection pump, or a dirty air cleaner could be the culprits.

What might cause the engine to overheat?

Insufficient coolant fluid, failed or dirty cooling system components, low engine oil, improper fan belt tension, or a defective thermostat can lead to overheating.

Why is there a loss of engine power?

Dirty or faulty injectors, incorrect fuel injection pressure, a dirty air filter, a dirty oil filter element, excessive engine load, incorrect valve clearance, or restricted fuel pipes could be causing this issue.

What could be the reason for high engine oil consumption?

Oil leaks, incorrect oil viscosity, seized or worn piston rings, worn valve stems and guides, or worn cylinder liners or pistons might be responsible.

Why won’t the battery charge?

It could be due to a bad cell in the battery, a faulty battery electrical wire harness, corroded or loose battery terminals and cables, or a damaged belt.

What might cause difficulty in shifting gears?

An unadjusted or worn clutch, stuck or worn gear shift linkage, bent or worn shift forks, or a faulty gear shifting mechanism could be causing this problem.

Why is the hydraulic system overheating?

Improper pressure in the hydraulic system, a faulty main relief valve, dirty hydraulic oil, or air in the hydraulic system might be the reasons.

What could cause hard steering in the Kubota L185?

Stuck steering knuckle or column, worn steering gearbox components, a faulty drag link or tie rod, insufficient lubrication in the steering box, or incorrect toe-in alignment could be causing hard steering.

The Kubota L185 is a compact utility tractor that comes in both 2WD and 4WD (L185DT) variants. Manufactured by Kubota between 1977 and 1982, this tractor is equipped with a 45.3 cubic inches Kubota Z751 two-cylinder liquid-cooled diesel engine.

Key Specifications:

The engine boasts a cylinder bore of 3.0″ (76 mm) and a piston stroke of 3.22″ (82 mm), delivering a rated power of 15 hp (11.2 kW). The tractor features a sliding gear transmission with 8 forward and 2 reverse gears, achieving a maximum forward speed of 13.1 mph (21 kph) and a reverse speed of 9 mph (14.5 kph). The hydraulic system is open center with a gear pump flow of 6.2 gal/min (23.5 l/min) and a main relief pressure of 147 bar (2130 psi).

Performance:

With its robust engine and efficient transmission system, the Kubota L185 offers reliable performance for various agricultural tasks. Its speed range is suitable for both light and heavy-duty operations.

Features:

The tractor is compatible with the Kubota L1200 front end loader, enhancing its versatility. The wheelbase stands at 60 inches (1520 mm), providing stability during operations. Depending on the variant, it comes with different tire configurations suitable for various terrains.

Reliability:

While the Kubota L185 is a reliable tractor, users might encounter issues like engine starting problems, overheating, or transmission difficulties. However, with regular maintenance and timely troubleshooting, these issues can be addressed effectively.

Value for Money:

Given its specifications and the range of features it offers, the Kubota L185 provides good value for money, especially when compared to other models from the same era.

Pros and Cons:

Pros:

  • Robust engine with decent power output.
  • Versatile with compatibility to front end loader.
  • Reliable transmission system.

Cons:

  • Potential for common engine issues if not maintained.
  • Older model, so parts might be harder to find.

Best Suited For:

The Kubota L185 is best suited for small to medium-sized farms, given its compact size and power output. It’s ideal for tasks like plowing, tilling, and hauling. Its compatibility with the front end loader also makes it suitable for loading and unloading tasks.

The Kubota L185 is a reliable and versatile compact utility tractor that has served many farmers over the years. While it might have its set of challenges, with proper care and maintenance, it can be a valuable asset to any farm. Its compatibility with attachments and its robust engine make it a worthy investment for those looking for a tractor from its era.