One of the major problems with the Detroit 8.2L is how to bleed the fuel system. The bleeding may be as a result of fuel exhaustion in the tank during a repair. To bleed means you need to allow any trapped air out of the fuel line to achieve a smooth flow in the fuel line.
Unlike other Detroit engines, such as series 92, 71, and others, they are self-bleeding. All you need to do to bleed them is to slack the last return pipe of the last cylinder. As soon as the fuel starts flowing out, then the engine fuel line has been bleed. That is why it is referred to as self-bleed.
But Detroit 8.2L is not a self-bleed engine. Rather than bleed it, you need to loosen the return line and direct it into a container so that the fuel will not pour away. Then you need to rotate the engine so that the fuel pump can pump the fuel. As soon as you see the fuel coming out of the return line, then the fuel line has been bleed. Note: You need to revv the engine; this is not a self-bleeding engine. Remember in other Detroit series, you don’t need to revv the engine before bleeding the fuel system.
Another point you need to note is how to identify the reline line. Ensure you identify the return line before you proceed with the bleeding process. Although in rare cases, if the air bubbles continue, then you need to replace the fuel filter and trace the fuel line supply line. Don’t forget to check if there is fuel in the fuel tank, because if there is no sufficient fuel, then the air will continue to be in the fuel line.
Purchase parts for your Detroit 8.2 Engine at ProDieselParts.
