For engines equipped with a rocker lever cover-mounted crankcase breather, the rocker lever cover gasket must be completely removed in order to remove the injectors. Refer to Procedure 003-011 in Section 3. For engines equipped with a rear engine-mounted crankcase breather, disconnect the injector solenoid wires. Remove the two injector hold-down capscrews and remove the… Read More »
If the engine will not start, crank the engine and measure the amount of fuel returned from the injectors. NOTE: Do not exceed starter cranking limitations of 30 seconds. Wait 2 minutes before cranking again. NOTE: For an accurate measurement, collect three different flows and average the results. If the fuel flow is greater than… Read More »
Rear Gear Train NOTE: Perform procedure 006-061 before continuing to check for leakage from the high pressure relief valve. Refer to Procedure 006-061 in Section 6. If the high pressure relief valve fuel return flow measures 0, proceed with procedure 006-026. Fuel Rail Pressure Relief Valve Drain: • Disconnect the quick connect (1) located in… Read More »
An internal leak from either the high-pressure connector or the fuel injector will result in increased fuel return flow from the cylinder head. Single cylinder cut-outs will not be able to isolate this leak because it occurs before it reaches the control needle inside the injector. Because all injectors share the same pressurized fuel supply… Read More »
Front Gear Train Install the p-clips and p-clip mounting capscrews in the locations noted during removal. Torque Value: 24 N •m [ 212 in-lb ] Do not bend, pry, or kink the fuel supply lines during installation. • Install the fuel supply line connecting the fuel filter head outlet to the gear pump inlet. •… Read More »
Inspect the fuel supply lines for clogging and pinched areas. Check the connector for cracks, wear, or pinched areas. Replace any fuel line that is found damaged. Inspect the face of the banjo connectors for sealing surface damage. Replace any fuel line that is found damaged.
Front Gear Train Mark the location of all clips and routing of the fuel supply lines to make sure they are replaced in the correct location during assembly. Do not bend, pry, or kink the fuel supply lines during removal. • Remove the fuel supply line connecting the fuel filter head outlet to the gear… Read More »
Directions for service of a two-button quick-disconnect fitting: Remove the quick disconnect style fuel lines by pressing in the locking tangs on both sides of the quick disconnect fitting. To aid in removing quick disconnect style fuel lines, slide removal tool, Part Number 4918878 over the locking tangs. Make sure the tool is removed from… Read More »
Operate the engine to high idle and measure the fuel inlet restriction. Observe the reading on the gauge. If the fuel inlet restriction is too high, check the original equipment manufacturer (OEM) fuel lines from the tank for proper size. Make certain there are no kinks or bends in the fuel lines and the fuel… Read More »
Disconnect the fuel supply line quick connect from the inlet to the gear pump. Install a pressure gauge adapter between the fuel supply line and the inlet to the gear pump. • Pressure gauge adapter, Part Number 4918462, for 5/16 inch fittings • Pressure gauge adapter, Part Number 4918696, for 3/8 inch fittings Install a… Read More »