Allis Chalmers WD45 Engine
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| Engine options | |
| Allis-Chalmers 3.7L 4-cyl gasoline | |
| Allis-Chalmers 3.7L 4-cyl tractor fuel | |
| Allis-Chalmers 3.7L 4-cyl LP gas | |
| Allis-Chalmers 3.8L 6-cyl diesel |
| Engine Detail | |
| Allis-Chalmers | |
| gasoline | |
| 4-cylinder | |
| liquid-cooled vertical I-head | |
| Displacement | 226 ci 3.7 L |
| Bore/Stroke | 4.00x4.50 inches 102 x 114 mm |
| Compression | 6.45:1 |
| Rated RPM | 1400 |
| Torque | 288 lb-ft 390.5 Nm |
| Torque RPM | 867 |
| Firing order | 1-2-4-3 |
| Starter volts | 6 |
| Sparkplug gap | 0.030 inches 0.762 mm |
| Point gap | 0.020 inches 0.508 mm |
| Intake valve clearance | 0.012 inches*Hot 0.305 mm |
| Exhaust valve clearance | 0.012 inches*Hot 0.305 mm |
| Allis Chalmers WD45 Engine | |
 |
| Engine Detail | |
| Allis-Chalmers | |
| tractor fuel | |
| 4-cylinder | |
| liquid-cooled vertical I-head | |
| Displacement | 226 ci 3.7 L |
| Bore/Stroke | 4.00x4.50 inches 102 x 114 mm |
| Compression | 4.75:1 |
| Rated RPM | 1400 |
| Firing order | 1-2-4-3 |
| Starter volts | 6 |
| Sparkplug gap | 0.030 inches 0.762 mm |
| Point gap | 0.020 inches 0.508 mm |
| Intake valve clearance | 0.012 inches*Hot 0.305 mm |
| Exhaust valve clearance | 0.012 inches*Hot 0.305 mm |
| Engine Detail | |
| Allis-Chalmers | |
| LP gas | |
| 4-cylinder | |
| liquid-cooled vertical I-head | |
| Displacement | 226 ci 3.7 L |
| Bore/Stroke | 4.00x4.50 inches 102 x 114 mm |
| Compression | 7.2:1 |
| Rated RPM | 1400 |
| Torque | 276 lb-ft 374.3 Nm |
| Torque RPM | 1250 |
| Firing order | 1-2-4-3 |
| Starter volts | 6 |
| Allis Chalmers WD45 Engine | |
 |
| Engine Detail | |
| Allis-Chalmers | |
| diesel | |
| 6-cylinder | |
| liquid-cooled vertical I-head | |
| Available after October of 1954 | |
| Displacement | 230 ci 3.8 L |
| Bore/Stroke | 3.4375x4.125 inches 87 x 105 mm |
| Air cleaner | oil bath |
| Compression | 15.5:1 |
| Rated RPM | 1625 |
| Torque | 259 lb-ft 351.2 Nm |
| Torque RPM | 1169 |
| Firing order | 1-5-3-6-2-4 |
| Starter volts | 12 |
| Coolant capacity | 17 qts 16.1 L |
| Intake valve clearance | 0.010 inches*Hot 0.254 mm |
| Exhaust valve clearance | 0.019 inches*Hot 0.483 mm |
| Engine Oil | |
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| Oil capacity | 7 qts 6.6 L |
| Allis Chalmers WD45 Engine | |
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| Page information | |
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| Peter Easterlund - owner/author | |
| Email: Peter@TractorData.com | |
| Updated on May 13, 2021 |