2.8 L and 4.2 L diesel sterndrive marine engines
See attached Serial Number List.
What are the defects?
The flexible fuel return hose which runs from the fuel distribution block to the fuel injection pump may experience a crack at the end of the hose, which could allow a small leakage of diesel fuel.
What are the hazards?
If left unattended, the fuel leak could potentially lead to a fire.
What should consumers do?
Stop using the boat and return it to a Mercury dealer for rectification. The Mercury dealer will replace the fuel return hose with a hose that is not subject to the defect.