| Engine options | |
| 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 | |
| Displacement | 125.2 ci 2.1 L  | 
| Bore/Stroke | 3.375x3.50 inches 86 x 89 mm  | 
| Air cleaner | oil bath | 
| Compression | 5.75:1 | 
| Rated RPM | 1500 | 
| Firing order | 1-2-4-3 | 
| Starter volts | 6 | 
| Oil capacity | 4 qts 3.8 L  | 
| Sparkplug gap | 0.035 inches 0.889 mm  | 
| Point gap | 0.020 inches 0.508 mm  | 
| Intake valve clearance | 0.010 inches (hot) 0.254 mm  | 
| Exhaust valve clearance | 0.010 inches (hot) 0.254 mm  | 
| Engine Detail | |
| Allis-Chalmers | |
| gasoline | |
| 4-cylinder | |
| liquid-cooled vertical I-head | |
| Second engine, used until 1943, SN 64500 | |
| Displacement | 116.1 ci 1.9 L  | 
| Bore/Stroke | 3.25x3.50 inches 83 x 89 mm  | 
| Rated RPM | 1400 | 
| Firing order | 1-2-4-3 | 
| Coolant capacity | 8 qts 7.6 L  | 
| Sparkplug gap | 0.030 inches 0.762 mm  | 
| Point gap | 0.020 inches 0.508 mm  | 
| Intake valve clearance | 0.010 inches (hot) 0.254 mm  | 
| Exhaust valve clearance | 0.010 inches (hot) 0.254 mm  | 
| Engine Oil | |
 
 | |
| Oil capacity | 4 qts 3.8 L  | 
| Page information | |
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| Email: Peter@TractorData.com | |
| Updated on May 12, 2017 |