Section 03-01A: Engine, 4.9L SFI
1996 F-150, F-250, F-350 (4x2), F-150, F-250 (4x4) Workshop Manual
IN-VEHICLE SERVICE

Crankshaft Rear Oil Seal

 
SPECIAL SERVICE TOOL(S) REQUIRED
DescriptionTool Number
Rear Oil Seal ReplacerT89T-6701-AH
 

Removal

  1. Remove the transmission (7003). Refer to the appropriate transmission section in Group 07.

  1. If equipped with manual transmission, remove clutch assembly. Refer to Section 08-01.

  1. Remove flywheel attaching bolts and remove rear cap (main bearing) and flywheel (6375).

  1.  CAUTION: Use caution throughout this procedure to avoid scratching or otherwise damaging the crankshaft oil seal surface.

    Use an awl to punch two holes in the crankshaft rear oil seal (6701). Punch the holes on opposite sides of the crankshaft (6303) and just above the bearing cap-to-cylinder block split line. Install a sheet metal screw in each hole. Use two large screwdrivers or small pry bars and pry against both screws at the same time to remove the crankshaft rear oil seal. It may be necessary to place small blocks of wood against the cylinder block (6010) to provide a fulcrum point for the pry bars.

  1. Clean the oil seal recess in the cylinder block and main bearing cap. Inspect and clean the oil seal contact surface on the crankshaft.

 

Installation

  1. Coat the oil seal-to-cylinder block surface of the crankshaft rear oil seal with oil XO-5W30-QSP or DSP or equivalent meeting Ford specifications ESE-M2C153-E. Coat the seal contact surface of the crankshaft rear oil seal and crankshaft with heavy SG engine oil. Place crankshaft rear oil seal on Rear Oil Seal Replacer T89T-6701-AH and, using hammer, tap into place until tool contacts face of cylinder block or bearing cap.

  1. Coat the threads of the flywheel attaching bolts with oil resistant sealer. Install the bolts and tighten in an opposing pattern to 102-115 Nm (75-85 lb-ft).

  1. Install flywheel.

  1. If equipped, install clutch. Refer to Section 08-01.

  1. Install transmission. Refer to appropriate transmission section in Group 07.

    ItemPart NumberDescription
    1—Crankshaft Hub
    (Part of 6303)
    2—Crankshaft Seal Bore
    (Part of 6010)
    36010Cylinder Block
    4—Plug Bore (Part of 6010)
    56266Camshaft Rear Bearing Cover
    6T89T-6701-AHRear Oil Seal Replacer
    76701Crankshaft Rear Oil Seal
    8—Metallic Side of Seal
    (Part of 6266)