The Starter return (ref. 251552), often called "Bendix", is a complex mechanical assembly consisting of a mobile pinion on a helical axis. Its role is to project forward under the effect of centrifugal force to cross the start-wreath. Once the engine is launched, the return spring the retracts the retracts to prevent contact with the motor. It is a high precision piece that undergoes important shocks at each start-up.