In a carbureted reciprocating engine, where is the fuel flow indicating system primarily connected?

In a carbureted reciprocating engine, the fuel flow indicating system is primarily connected between the engine fuel pump and the indicator. This is essential because the fuel pump is responsible for delivering a consistent flow of fuel to the carburetor, which mixes it with air for combustion. By placing the fuel flow meter in this position, it can accurately measure the amount of fuel being sent to the carburetor, allowing for real-time monitoring of fuel flow rates. This information is crucial for controlling the mixture and ensuring the engine operates efficiently at various power settings.

The choice to connect the indicator after the fuel filter, before the choke, or before the engine bay would not provide the necessary accuracy or reliability for monitoring during operation. These locations could be influenced by pressure drops or blockages, thus compromising the readings. Focusing the system between the fuel pump and the indicator ensures that measurements reflect the actual fuel delivery to the engine, aiding in performance and safety management.