Allis Chalmers IB Engine


Allis Chalmers IB industrial tractor photo
1939 - 1958
Industrial tractor
Engines overview
Allis-Chalmers 2.1L 4-cyl gasoline
Allis-Chalmers 1.9L 4-cyl gasoline
Engine Detail
Allis-Chalmers
gasoline
4-cylinder
liquid-cooled
Final engine, used from 1943 on, SN 64501
Displacement125.2 ci
2.1 L
Bore/Stroke3.375x3.50 inches
86 x 89 mm
Air cleaneroil bath
Compression5.75:1
Rated RPM1500
Firing order1-2-4-3
Starter volts6
Oil capacity4 qts
3.8 L
Sparkplug gap0.035 inches
0.889 mm
Point gap0.020 inches
0.508 mm
Intake valve clearance0.010 inches (hot)
0.254 mm
Exhaust valve clearance0.010 inches (hot)
0.254 mm
Engine Detail
Allis-Chalmers
gasoline
4-cylinder
liquid-cooled vertical I-head
Second engine, used until 1943, SN 64500
Displacement116.1 ci
1.9 L
Bore/Stroke3.25x3.50 inches
83 x 89 mm
Rated RPM1400
Firing order1-2-4-3
Coolant capacity8 qts
7.6 L
Sparkplug gap0.030 inches
0.762 mm
Point gap0.020 inches
0.508 mm
Intake valve clearance0.010 inches (hot)
0.254 mm
Exhaust valve clearance0.010 inches (hot)
0.254 mm
Engine Oil
IB gasoline engine oil chart
Oil capacity4 qts
3.8 L
Page information
Last updateMay 12, 2017
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