Section 03-04D: Fuel Charging and Controls, 7.3L Diesel Engine
1996 F-250, F-350 and F-Super Duty Workshop Manual
REMOVAL AND INSTALLATION

Oil Pump Drive Gear and Oil Reservoir, High-Pressure

Removal

  1. Loosen the compressor manifold hose clamps and remove the compressor manifold.

  1. Remove the oil from the high-pressure oil pump reservoir using Rotunda Vacuum Tester 014-R1058 or equivalent.

  1. Remove the cover plate and bolts at the crankcase front cover.

  1. Remove the oil pump drive sprocket bolt and washer.

  1. Remove the high-pressure oil pump. Refer to Oil Pump,High-Pressure, in the Removal and Installation portion of this section.

  1. Remove the high-pressure oil pump reservoir retaining nut and bolts and position wiring harness aside.

  1. Remove the reservoir and disconnect the wire connectors from the sensors at the top and back of the reservoir.

  1. Remove the high-pressure oil pump drive gear.

  1. Inspect gear for damage. Service as required.

  1. Clean mating surfaces of crankcase front cover, cover plate and reservoir.

Installation

  1. Install the high-pressure oil pump drive sprocket into the crankcase front cover.

  1. Install the high-pressure oil pump. Refer to Oil Pump, High-Pressure in the Removal and Installation portion of this section.

  1. NOTE: Make sure the oil pump drive sprocket is fully seated on the shaft of the oil pump before installing the bolt and washer, or sprocket may not seat properly. The end of high-pressure oil pump shaft should be flush with the front face of the oil pump drive sprocket.

    Install the oil pump drive sprocket, bolt and washer. Tighten bolt to 129 Nm (95 lb-ft).

  1. Check oil pump drive sprocket backlash as follows:

    1. Mount Dial Indicator Bracketry D78P-4201-F or equivalent and Dial Indicator D78P-4201-G or equivalent.
    1. Zero the dial indicator.
    1. Place dial indicator tip on drive sprocket tooth.
    1. Move drive sprocket by hand and record reading.
    1. If backlash reading exceeds 0.140-0.256mm (0.0055-0.0101 in.), replace drive sprocket.

  1. Apply RTV sealer to crankcase front cover and install cover plate and retaining bolts.

  1. Install new gasket, sealant, and reservoir.

  1. Install the oil reservoir retaining bolts.

  1. Connect the sensors and harness clips.

  1. Refill oil reservoir with clean engine oil.

  1. Install compressor manifold and hose clamps. Tighten clamps securely.