| Engine Detail | |
| J.I. Case | |
| diesel | |
| 4-cylinder 8-valve | |
| liquid-cooled | |
| Displacement | 251 ci 4.1 L |
| Bore/Stroke | 4.00x5.00 inches 102 x 127 mm |
| Air cleaner | oil bath |
| Pre-heating | ether capsules |
| Compression | 15:1 |
| Rated RPM | 1500 |
| Idle RPM | 600-1600 |
| Firing order | 1-3-4-2 |
| Starter volts | 12 |
| Coolant capacity | 29.6 qts 28.0 L |
| Intake valve clearance | 0.012 inches (cold) 0.305 mm |
| Exhaust valve clearance | 0.012 inches (cold) 0.305 mm |
| Engine Oil | |
| |
| Oil capacity | 9 qts 8.5 L |
| Oil change | 120 h |
| J.I. Case 420 Engine | |
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| Page information | |
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| Peter Easterlund - owner/author | |
| Email: Peter@TractorData.com | |
| Updated on July 17, 2024 |