Tractors > John Deere > 1840

John Deere 1840 Engine



John Deere 1840 tractor photo
1979 - 1982
Utility tractor
Series map:
1640
1840
2040
46.2kw
52.2kw
52.2kw
Engine Detail
John Deere
diesel
4-cylinder
liquid-cooled
Displacement239 ci
3.9 L
Bore/Stroke4.19x4.33 inches
106 x 110 mm
Power (net)70 hp
52.2 kW
Compression16.8:1
Rated RPM2500
Idle RPM800-2660
Operating RPM1300-2500
Torque170 lb-ft
230.5 Nm
Torque RPM1300
Firing order1-3-4-2
Starter volts12
Intake valve clearance0.014 inches
0.356 mm
Exhaust valve clearance0.018 inches
0.457 mm
Page information
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Peter Easterlund - owner/author
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Updated on March 8, 2024
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