John Deere 140 garden tractor specs and service data

The John Deere 140 is a garden tractor model from the 100 series, manufactured from 1968 to 1974 by John Deere in Horicon, Wisconsin, USA. It was available in a two-wheel drive (2WD) version.

The John Deere 140 is equipped with one of two engines: a 476 сс (29.0 cu·in) single-cylinder gasoline engine with 85.7 mm (3.37 in) of the cylinder bore and 82.6 mm (3.25 in) of the piston stroke, or a 512 сс (31.2 cu·in) single-cylinder gasoline engine with 88.9 mm (3.5 in) of the cylinder bore and 82.6 mm (3.25 in) of the piston stroke, and a shaft-driven hydrostatic transmission with infinite forward and reverse gears.

The John Deere 140 garden tractor features:

The Kohler K301AS gasoline engine which produces 12.1 PS (8.9 kW; 12.0 HP) at 3,800 rpm of horsepower or the Kohler K321AS gasoline engine with 14.1 PS (10.4 kW; 14.0 HP) at 3,800 rpm of output power
Manual steering
Integral mechanical disc brakes (1968), differential mechanical disc brakes (from 1969 to 1970), drum brakes (after 1971)
Open operator station
Category 0 rear hitch (optioanl)
Independent front PTO with electric clutch
Live type rear PTO

General specifications

General Specifications
Model	John Deere 140
Tractor type	Garden tractor
Production years	1968-1974
Factory	Horicon, Wisconsin, USA
Dimensions and weight
Length	1,710 mm (67.3 in)
Width	960 mm (37.8 in)
Height	1,090 mm (42.9 in)
Wheel base	1,160 mm (45.7 in)
Weight	330 kg (728 lbs)
Fuel capacity
Fuel tank capacity	6.6 liters (1.7 US gal.; 1.5 Imp. gal)

Engine

Engine Specifications
Engine model	Kohler K301AS
Engine type	4-stroke, L-head (side valve), single-cylinder
Displacement	476 cm³, (29.0 cu·in)
Bore and stroke	85.7 mm X 82.6 mm (3.37 in X 3.25 in)
Compression ratio	6.0:1
Max. horsepower	12.2 PS (9.0 kW; 12.0 HP) at 3,600 rpm
Cooling system	Forced air
Lubricating system	Splash type
Fuel system	Carburetor
Starting system	Electirc starter
Compression pressure
Normal:	7.7-8.4 kg/cm² (7.6-8.3 bar, 110-120 psi) / 1,000 rpm
Valve clearance
Intake valve clearance:	0.20-0.25 mm (0.0079-0.0098 in)
Exhaust valve clearance:	0.43-0.48 mm (0.0169-0.0189 in)
Oil system
Lubrication system:	Splash type
Oil type:	API SF or SG
Recommended oil:	Summer: SAE 30W Winter: SAE 5W-20, 5W-30
Oil capacity:	1.4 L (1.5 US. qt, 1.2 Imp. qt.)
Ignition system
Spark plug:	Champion RH10
Spark plug gap:	0.65 mm (0.0256 in)
Spark plug torque:	27 N·m (2.8 kg·m, 19.9 ft·lb)

Engine Specifications
Engine model	Kohler K321AS
Engine type	4-stroke, L-head (side valve), single-cylinder
Displacement	512 cm³, (31.2 cu·in)
Bore and stroke	88.9 mm X 82.6 mm (3.50 in X 3.25 in)
Compression ratio	6.0:1
Max. horsepower	14.1 PS (10.4 kW; 14.0 HP) at 3,600 rpm
Cooling system	Forced air
Lubricating system	Splash type
Fuel system	Carburetor
Starting system	Electirc starter
Compression pressure
Normal:	7.7-8.4 kg/cm² (7.6-8.3 bar, 110-120 psi) / 1,000 rpm
Valve clearance
Intake valve clearance:	0.20-0.25 mm (0.0079-0.0098 in)
Exhaust valve clearance:	0.43-0.48 mm (0.0169-0.0189 in)
Oil system
Lubrication system:	Splash type
Oil type:	API SF or SG
Recommended oil:	Summer: SAE 30W Winter: SAE 5W-20, 5W-30
Oil capacity:	1.4 L (1.5 US. qt, 1.2 Imp. qt.)
Ignition system
Spark plug:	Champion RH10
Spark plug gap:	0.65 mm (0.0256 in)
Spark plug torque:	27 N·m (2.8 kg·m, 19.9 ft·lb)

Transmission and chassis

Chassis, steering and brakes
Chassis	4×2 2WD
Steering type	Manual
Brakes	Integral mechanical disc (1968) Differential mechanical disc (from 1969 to 1970) Drum (after 1971)
Transmission
Transmission manufacturer or model	Sundstrand 15
Transmission type	Shaft-driven hydrostatic
Gears	Infinite forward and reverse
Speed	Forward: 10.9 kmh (6.8 mph) Reverse: 6.0 kmh (3.7 mph)
Transmission oil capacity	4.7 L (1.2 US. gal, 1 Imp. gal.)

Tires

Tires
Front tires	Ag: 4.80/4.00-8 Lawn/turf: 16×6.50-8
Rear tires	Ag: 23×8.50-12 Lawn/turf: 23×8.50-12

PTO (Power take-off shaft)

PTO
Front PTO type	Independent with electric clutch
Front PTO speed	–
Rear PTO type	Live
Rear PTO speed	–

Electrical system

Electrical system
Ground	Negative
Charging system	–
Charging amps	–
Battery	12V, 40Ah

Serial numbers

John Deere 140 serial numbers
1968	1001
1969	10001
1970	22401
1971	30001
1972	38001
1973	46501
1974	56501

Attachments

John Deere 41: 38″ mid-mount mower deck with 2-blade and hydraulic lift
Cutting width	960 mm (38 in)
John Deere 48″ mid-mount mower deck with 3-blade and hydraulic lift
Cutting width	1,210 mm (48 in)
John Deere 54″ front-mount blade with hydraulic-lift
Cutting width	1,370 mm (54 in)
John Deere 54C: 54″ center-mount blade with hydraulic-lift and manual-angle (hydraulic-angle optional)
Cutting width	1,370 mm (54 in)
Lift	70 mm (3 in)
Angling	20°
Weight	Manual: 47 kg (104 lbs) Hydraulic: 50 kg (112 lbs)
John Deere 49: 46″ front-mount one-stage snow blower with hydraulic-lift
Cleaning width	1,160 mm (46 in)
Weight	89 kg (197 lb)

Author: Sergei Wers
About: Co-founder and CEO of a multi-brand auto repair shop (engine repair, chassis repair, body repair and painting) for over 15 years. I have been developing internet sites with technical specifications for more than seven years.

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We try to use official documentation and verify the published data, but errors may occur. In addition, specifications of machinery and equipment may vary depending on markets and modifications. We do not recommend the use of this data for spare parts or repairs. Use official service manuals or parts catalogs for your product.

John Deere 140