Gravely 430 Engine
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| Engine options | |
| 12HP Kohler 476cc 1-cyl gasoline | |
| 12HP Onan 491cc 1-cyl |
| Engine Detail | |
| Kohler K301 | |
| gasoline | |
| 1-cylinder | |
| air-cooled horizontal-shaft | |
| Displacement | 476 cc 29.07 ci |
| Bore/Stroke | 3.25x3.37 inches 83 x 86 mm |
| Power (gross) | 12 hp 8.9 kW |
| Air cleaner | single dry element |
| Rated RPM | 3600 |
| Starter volts | 12 |
| Sparkplug | Champion H-10 |
| Sparkplug gap | 0.025 inches 0.635 mm |
| Intake valve clearance | 0.009 inches*Cold 0.229 mm |
| Exhaust valve clearance | 0.018 inches*Cold 0.457 mm |
| Engine Oil | |
| |
| Oil capacity | 2.5 qts 2.4 L |
| Engine Detail | |
| Onan NB | |
| 1-cylinder | |
| air-cooled | |
| Displacement | 491 cc 30 ci |
| Bore/Stroke | 3.5625x3.00 inches 90 x 76 mm |
| Power | 12 hp 8.9 kW |
| Rated RPM | 3600 |
| Starter volts | 12 |
| Page information | |
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| Peter Easterlund - owner/author | |
| Email: Peter@TractorData.com | |
| Updated on August 4, 2021 |