| Removing and installing damper unit |
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| The uneven nature of the combustion process in piston engines causes torsional vibration at the crankshaft. |
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| This torsional vibration is transmitted to the gearbox where it causes resonant vibration. The result is noise and excessive loading of the components. |
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| In order to prevent this vibration being transmitted to the gearbox, the engine torque on 6-cylinder engines is transferred to the gearbox via a flywheel/damper unit. |
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| A dual-mass flywheel is used on 4-cylinder petrol engines and 6-cylinder diesel engines, as they run less smoothly than 6-cylinder petrol engines. |
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