The primary fuel filter is mounted on the bulkhead in the engine compartment. It is the same type of filter that is used on larger…

Shop manual diagnosis charts should be referred to when diagnosing for air problems to determine the presence of air. First install a short clear plastic…

An important function of all hoses, lines and fittings is to carry fuel with maximum absence of air. When the fuel tank cap is in…

PRELIMINARY INSPECTION Step 1 Check fittings and connections to insure tightness. If insufficiently tight, leaks of air and/or fuel may occur. Step 2 Check for…

A mechanical fuel pump is mechanically actuated by a rocker arm or push rod without electrical assistance. Figure 4-9 shows a typical mechanical fuel pump.…

Although the injection pump has capabilities to pull fuel from the tank, an engine mounted fuel pump is included in this system as an additional…

1. Drain fuel tank and fill with diesel fuel. 2. Remove fuel line between fuel filter and injection pump. 3. Connect a short pipe and…

1. Drain the fuel tank. 2. Remove the tank gage unit. 3. Thoroughly clean the fuel tank. If the tank is rusted internally, it should…

In warm or humid weather, fungi and/or bacteria may form in diesel fuel if there is water in the fuel. Fungi or bacteria can cause…

Various malfunctions in diesel engines often lead to injection pump replacement. Before replacing the injection pump, determine if water or an excessive amount of gasoline…