J.I. Case 731

The J.I. Case 731 is a tractor produced by J I Case. It is equipped with a 267 ci 4.4 L engine. The rated power output is 56.43 hp 42.1 kW. Transmission: Dual-Range. Operating weight: 7,095 lbs 3218 kg.

Overview

	1960 - 1969 730 SeriesRow-Crop tractor
1960 - 1969
730 Series
Row-Crop tractor

Production
Manufacturer	J.I. Case
Row-Crop tractor
Original price	$6,900 (1969)

Variants
730	standard-front diesel
731	row-crop diesel
732	Western Special diesel
733	high-clearance diesel
734	orchard diesel
740	standard-front gas
741	row-crop gas
742	Western Special gas
743	high-clearance gas
744	orchard gas

J.I. Case 731 Engine
J.I. Case 4.4L 4-cyl diesel
Fuel tank	22 gal 83.3 L
Engine details ...

J.I. Case 731 Power
Plows	5
Drawbar (tested)	48.33 hp 36.0 kW
PTO (tested)	56.50 hp 42.1 kW
Performance test details ...

Mechanical
Two-wheel drive
Steering	manual
	power optional
Differential disc brakes
Open operator station.

Hydraulics
Type	open center
Valves	1

Tractor hitch
Rear Type	II
Type	Case Eagle Hitch

Power Take-off (PTO)
Rear PTO	independent
Rear PTO Type	540
	1000

Dimensions & Tires
Wheelbase	83 inches 210 cm
Weight	7,095 lbs 3218 kg
Front tire	6.00-16
Rear tire	13.6-38
Full dimensions and tires ...

References
295 / 391 / 392 Loaders published in 1966, by J.I. Case
1960 Progress Parade of Case Farm Equipment published by J.I. Case
A Complete New Line of Case Plus-Powered Tractors published in 1960, by J.I. Case
1965 Buyers Guide published by J.I. Case
Buyers Guide for '67 published in 1967, by J.I. Case

Engine

Engine Detail — 267 ci / 4.4 L Diesel

Manufacturer	J.I. Case
Fuel Type	Diesel
Configuration	4-cylinder, liquid-cooled
Displacement	267 ci 4.4 L
Bore/Stroke	4.125x5.00 inches 105 x 127 mm
Air cleaner	oil bath
Compression	15.2:1
Rated RPM	1700 (Dual-Range)
	1900 (Case-o-Matic)
Starter volts	12
Coolant capacity	7.5 qts 7.1 L

Transmission

Transmission options
8-speed torque converter
8-speed unsynchronized

Transmission — Case-o-matic

Transmission	Case-o-matic
Type	torque converter
Gears	8 forward and 2 reverse

Transmission — Dual-Range

Transmission	Dual-Range
Type	unsynchronized
Gears	8 forward and 2 reverse
Clutch	mechanical dry disc

Dimensions

J.I. Case 731 Tires
Ag front	6.00-16
Ag rear	13.6-38

Dimensions
Wheelbase	83 inches 210 cm
Operating weight	7,095 lbs 3218 kg
Ballasted weight	9,525 lbs 4320 kg

Tests

Tractor Tests
NTTL 742: diesel Case-O-Matic 2WD
NTTL 743: diesel 8-speed 2WD

Nebraska Tractor Test 742
Diesel Case-O-Matic 2WD April 19 - May 6, 1960 Link: Nebraska Tractor Test 742 file
PTO performance
Power at rated engine speed	56.50 hp 42.1 kW
Fuel use	4.3 gal/hour 16.3 l/hour
Power at rated PTO speed	53.46 hp 39.9 kW
Fuel use	3.9 gal/hour 14.8 l/hour
Drawbar performance
Max power	48.31 hp 36.0 kW
Fuel use	4.2 gal/hour 15.9 l/hour
Gear 4 used for power test.
Max pull	7362 lbs 3339 kg
Gear 2-Torque used for pull test.

Nebraska Tractor Test 743
Diesel 8-speed 2WD April 21 - May 6, 1960 Link: Nebraska Tractor Test 743 file
PTO performance
Power at rated engine speed	56.43 hp 42.1 kW
Fuel use	3.8 gal/hour 14.4 l/hour
Drawbar performance
Max power	48.33 hp 36.0 kW
Fuel use	3.8 gal/hour 14.4 l/hour
Gear 4 used for power test.
Max pull	7531 lbs 3416 kg
Gear 2 used for pull test.