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Years in Production / 1969–1972
J.I. Case
770
Explore the specifications, hardware, and original references for the J.I. Case 770.
62hp
Engine estimate · from PTO
2WD Only
Drive
1969–1972
Production years
J.I. Case
Manufacturer
770 / 01
At a glance
Production
Built in Racine, Wisconsin, USA
Original price was $7,600 in 1973
- Manufacturer
- J.I. Case
- Total Built
- 1,690
Hydraulics
- Type
- open center
- Pump Flow
- 16 gpm60.6 lpm
- Total Flow
- 24 gpm90.8 lpm
- Steering Flow
- 8 gpm30.3 lpm
Hitch
- Rear Type
- II
Pto
- Rear Pto
- independent
- Rear Type
- 540 (1.375)
- Rear Type
- 540/1000 (1.375)
- Engine Rpm
- 540@1900
- Engine Rpm
- 1000@1900
Mechanical
Two-wheel drive
Power steering
Differential hydraulic dry disc brakes
Open operator station. Cab optional.
770 / 02
Under the hood
Engine Detail (Option 1)
J.I. Case
diesel
4-cylinder
liquid-cooled
Engine RPMs increased from 1900 to 2000 starting at serial number 8675001, creating an increase of about 8 horsepower.
- Displacement
- 267 ci4.4 L
- Bore Stroke
- 4.125x5.00 inches105 x 127 mm
- Air Cleaner
- paper element with pre-cleaner
- Compression Ratio
- 16.5:1
- Rated Rpm
- 1900 (early)
- Rated Rpm
- 2000 (late)
- Starter Volts
- 12
- Fuel Type
- diesel
- Cylinders
- 4
- Cooling
- liquid-cooled
Engine Detail (Option 2)
J.I. Case
gasoline
4-cylinder
liquid-cooled
- Displacement
- 251 ci4.1 L
- Bore Stroke
- 4.00x5.00 inches102 x 127 mm
- Air Cleaner
- paper element with precleaner
- Compression Ratio
- 7.5:1
- Rated Rpm
- 1900
- Starter Volts
- 12
- Coolant Capacity
- 28 qts26.5 L
- Fuel Type
- gasoline
- Cylinders
- 4
- Cooling
- liquid-cooled
Engine Options
J.I. Case 4.4L 4-cyl diesel
J.I. Case 4.1L 4-cyl gasoline
- Fuel Tank
- 50 gal189.2 L
770 / 03
Gears & controls
Transmission (Option 1)
- Transmission Type
- unsynchronized gear
- Gears
- 8 forward and 2 reverse
- Clutch
- 304.8mm dry disc
Transmission (Option 2)
Four gears each with reverse and a three-speed forward powershift.
- Transmission
- Range Power Shift
- Transmission Type
- partial power shift
- Gears
- 12 forward and 4 reverse
- Clutch
- hydraulic wet discs
770 / 04
Size. Stance. Footprint.
Dimensions
- Length
- 153 in388 cm
- Height
- 67 in170 cm
- Wheelbase
- 101 in256 cm
- Ground clearance
- 15 in38 cm
- Front tread
- 60 in152 cm
- Rear tread
- 60 in152 cm
Dimensions And Tires
- Wide Front Wheelbase
- 101 inches256 cm
- Tricycle Wheelbase
- 94 inches238 cm
- Weight
- 9,220 lbs4182 kg
- Front Tire
- 7.5L-15
- Rear Tire
- 16.9-34
Tires And Tracks
- Front Ag
- 7.5L-15
- Rear Ag
- 16.9-34
See it in action
Videos
Watch J.I. Case 770 videos from their original YouTube creators.
770 / 06
Tests (NTTL)
Nebraska Tractor Test 1032
Gasoline 12-speed 2WDNovember 10 - 22, 1969
PTO performance
Drawbar performance
Gear 2-High used for power test.
Gear 2-Low used for pull test.
- Id
- 1032
- Power At Rated Engine Speed
- 53.53 hp39.9 kW
- Fuel Use
- 5.0 gal/hour18.9 l/hour
- Fuel Use
- 5.2 gal/hour19.7 l/hour
- Max Power
- 46.30 hp34.5 kW
- Max Pull
- 7,103 lbs3221 kg
Nebraska Tractor Test 1033
Diesel 8-speed 2WDNovember 11 - 22, 1969
PTO performance
Drawbar performance
Gear 4-Low used for power test.
Gear 2-Low used for pull test.
- Id
- 1033
- Power At Rated Engine Speed
- 56.36 hp42.0 kW
- Fuel Use
- 3.6 gal/hour13.6 l/hour
- Fuel Use
- 3.7 gal/hour14.0 l/hour
- Max Power
- 49.18 hp36.7 kW
- Max Pull
- 7,623 lbs3457 kg
Nebraska Tractor Test 1058
Diesel 12-speed 2WDOctober 28 - November 7, 1970
PTO performance
Drawbar performance
Gear 2-High used for power test.
Gear 1-Med used for pull test.
- Id
- 1058
- Power At Rated Engine Speed
- 56.77 hp42.3 kW
- Fuel Use
- 3.8 gal/hour14.4 l/hour
- Fuel Use
- 3.7 gal/hour14.0 l/hour
- Max Power
- 50.36 hp37.6 kW
- Max Pull
- 7,627 lbs3459 kg
Nebraska Tractor Test 1061
Gasoline 8-speed 2WDNovember 6 - 19, 1970
PTO performance
Drawbar performance
Gear 4-Low used for power test.
Gear 2-Low used for pull test.
- Id
- 1061
- Power At Rated Engine Speed
- 56.32 hp42.0 kW
- Fuel Use
- 5.0 gal/hour18.9 l/hour
- Max Power
- 49.14 hp36.6 kW
- Max Pull
- 7,474 lbs3390 kg
Nebraska Tractor Test 1088
Diesel 8-speed 2WDNovember 13 - 23, 1971
PTO performance
Drawbar performance
Gear 4-Low used for power test.
Gear 1-Low used for pull test.
- Id
- 1088
- Power At Rated Engine Speed
- 63.90 hp47.7 kW
- Fuel Use
- 4.3 gal/hour16.3 l/hour
- Fuel Use
- 4.1 gal/hour15.5 l/hour
- Power At Rated Pto Speed
- 62.85 hp46.9 kW
- Max Power
- 56.85 hp42.4 kW
- Max Pull
- 8,853 lbs4015 kg
Nebraska Tractor Test 1089
Diesel 12-speed 2WDNovember 15 - 24, 1971
PTO performance
Drawbar performance
Gear 3-Low used for power test.
Gear 1-Med used for pull test.
- Id
- 1089
- Power At Rated Engine Speed
- 64.56 hp48.1 kW
- Fuel Use
- 4.4 gal/hour16.7 l/hour
- Fuel Use
- 4.2 gal/hour15.9 l/hour
- Power At Rated Pto Speed
- 61.93 hp46.2 kW
- Max Power
- 55.95 hp41.7 kW
- Max Pull
- 8,927 lbs4049 kg