Engine

The engine is not specified in the data provided. However, based on the other specs provided, we can assume that the Nuffield 4/65 tractor has a 65 hp/48.5 kW engine with a displacement of 231 ci/3.8 L. The engine has a bore/stroke of 3.937x4.724 inches/100 x 120 mm and a compression ratio of 16.5:1. It has a rated RPM of 2500 and an idle RPM of 630-2160. The engine produces a torque of 170 lb-ft/230.5 Nm at 1200 RPM and has a firing order of 1-3-4-2.


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Transmission

The transmission of the Nuffield 4/65 tractor has 10 forward and 2 reverse gears. It is a 10-speed gear transmission with a dry disc clutch of 280mm. The PTO (claimed) of the tractor is 54 hp/40.3 kW. The transmission is designed to provide five gears, plus reverse, in two ranges. The engine of the tractor is coupled with the transmission to provide smooth and efficient power transfer to the wheels.

Brakes

The brakes of the Nuffield 4/65 tractor are mechanical disc brakes. The tractor has a BMC/diesel/4-cylinder 8-valve/liquid-cooled OHV engine with a power output of 65 hp/48.5 kW. The engine has a torque of 170 lb-ft/230.5 Nm at 1200 RPM. The brakes are designed to provide efficient stopping power to the tractor. The tractor has a starter voltage of 12 volts and an oil capacity of 9.5 qts/9.0 L.



Steering

The steering of the Nuffield 4/65 tractor is power steering. The tractor has a BMC 3.8L 4-cylinder diesel engine with a fuel tank capacity of 19.2 gal/72.7 L. The power steering system is designed to provide easy and precise control of the tractor. The steering system is coupled with the transmission and the brakes to provide a smooth and efficient driving experience.


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Common Problems

Users of the Nuffield 4/65 tractor have reported issues with the chassis, final drives, steering, brakes, cab, and transmission. The chassis of the tractor is reported to be weak and prone to damage. The final drives of the tractor are reported to be noisy and prone to failure. The steering system of the tractor is reported to be difficult to operate and prone to leaks. The brakes of the tractor are reported to be weak and prone to failure. The cab of the tractor is reported to be uncomfortable and poorly designed. The transmission of the tractor is reported to be difficult to shift and prone to failure.

What Users Like

Users of the Nuffield 4/65 tractor like the ag front tires of the tractor, which are 7.50-16 in size. They also like the ag rear tires of the tractor, which are available in three sizes: 12.00-38, 14.00-30, and 15.00-30. Users appreciate the power and efficiency of the engine, which provides smooth and reliable performance. They also appreciate the smooth and efficient power transfer provided by the transmission and the hydraulics system. The power steering system is also appreciated for providing easy and precise control of the tractor. Finally, users appreciate the overall durability and reliability of the tractor.

Techincal Specifications

Power

Engine65 hp/48.5 kW
Pto (claimed)54 hp/40.3 kW

Engine Detail

DescriptionBMC/diesel/4-cylinder 8-valve/liquid-cooled OHV
Displacement231 ci/3.8 L
Bore/stroke3.937x4.724 inches/100 x 120 mm
Power65 hp/48.5 kW
Compression16.5:1
Rated Rpm2500
Idle Rpm630-2160
Torque170 lb-ft/230.5 Nm
Torque Rpm1200
Firing Order1-3-4-2
Starter Volts12
Oil Capacity9.5 qts/9.0 L
Coolant Capacity14.4 qts/13.6 L

Engine

DescriptionBMC 3.8L 4-cyl diesel
Fuel Tank19.2 gal/72.7 L

Transmission

Typegear
Gears10 forward and 2 reverse
Clutch280mm dry disc
Oil Capacity59.7 qts/56.5 L
DescriptionFive gears, plus reverse, in two ranges.

Mechanical

Chassis4x2 2WD
Final Drivesspur gear
Steeringpower
Brakesmechanical disc
CabOpen operator station.
Transmission10-speed gear

Tires

Ag Front7.50-16
Ag Rear12.00-38/14.00-30/15.00-30

Dimensions

Wheelbase79.9 inches/202 cm
Length126.4 inches/321 cm
Width67.7 inches/171 cm
Height (hood)60.6 inches/153 cm
Height (exhaust)86.6 inches/219 cm
Operating Weight5140 lbs/2331 kg
Ground Clearance23.1 inches/58 cm
Clearance (front Axle)17.2 inches/43 cm
Clearance (drawbar)15.3 inches/38 cm
Front Tread52 to 76 inches/132 to 193 cm
Rear Tread54 to 88 inches/137 to 223 cm

Dimensions And Tires

Wheelbase79.9 inches/202 cm
Weight5140 lbs/2331 kg
Front Tire6.00-16
Rear Tire11.00-36

Serial Numbers

LocationSerial number plate on the left side of the tractor frame.
196799001
Final135000

Tractor Hitch

Rear TypeII/I
Controldirectional control and top-link draft sensing

Speeds

DescriptionWith 11-36 rear tires./

Power Take Off Pto

Rear Ptotransmission/independent
Rear Rpm540 (1.375)
Engine Rpm540@1800