Outboard Engine GearBox Gear Case 3D model

cgtrader

This is a detailed model of an outboard engine gear case. Below, I'll break down how it works for those who are unfamiliar with its inner workings. The power from the crankshaft of the engine is transmitted to the top gear on the "pinion" through the driveshaft, which features a nut below the pinion that secures it in place. The pinion then delivers this rotational power to the two gears next to it, which rotate in opposite directions at all times when the engine is running. The lever located on the left side of the outboard motor or remote control allows you to adjust the clutch, which is situated between these gears. By moving the clutch to the desired position, it engages with one of the gears due to its unique shape. As a result, the propeller shaft rotates the propeller, ultimately propelling the boat forward. If you want to switch to reverse or forward gear, simply move the clutch to the opposite gear. When the clutch is in the center position, your engine will be in neutral. All of these gears and components are housed within the lower unit of the engine and submerged in oil to minimize friction and wear. You can locate the shaft here: Outboard Propeller Shaft and the propeller itself here: Outboard Propeller