What is the impact of a clogged receiving strainer in a Type 4 system?

A clogged receiving strainer in a Type 4 system can lead to potential over-pressurization due to the restriction of fuel flow. The receiving strainer is designed to filter out contaminants and debris from the fuel before it enters the system. When this strainer becomes clogged, it creates a bottleneck in the flow of fuel.

As the system continues to attempt to draw fuel, the pump may work harder to maintain the required flow rate. This excessive effort can lead to a buildup of pressure upstream of the strainer, contributing to the risk of over-pressurization. This condition not only affects the performance of the system but can also lead to potential damage to components designed to operate under specific pressure thresholds.

In contrast, the other outcomes associated with a clogged strainer, such as enhanced fuel flow, increased operational efficiency, or quicker fuel transfer rates, are contradictory to the effects of clogging. In reality, a clogged strainer would impede fuel flow, decrease efficiency, and slow down transfer rates, further highlighting the importance of maintaining clear strainers in any fuel system.