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

Valve Tappet, Hydraulic

SPECIAL SERVICE TOOL(S) REQUIRED
DescriptionTool Number
Spark Plug Wire RemoverT74P-6666-A

Removal

  1. Remove the coil and bracket attaching nuts and position the coil and bracket out of the way.

  1. Remove the valve cover (6582). Refer to Valve Cover and Gasket in the In-Vehicle Service portion of this section but do not remove the valve rocker arm bolt, rocker arm seat (6A528) or rocker arm (6564).

  1. Disconnect the distributor-to-spark plug wires at the spark plugs (12405) using Spark Plug Wire Remover T74P-6666-A. Remove secondary high-tension wire from the coil. Remove the distributor cap (12106), distributor adapter, and distributor to spark plug wire (12286) assembly.

  1. Remove the valve tappet side cover.

  1. Loosen the rocker arm bolts until the rocker arms can be disengaged from the push rods (6565). Remove the push rods. Remove the valve tappets (6500) with a magnetic valve tappet remover. If more than one push rod and valve tappet are removed, place the parts in a rack so they can be installed in their original locations.

Installation

  1. NOTE: Refer to Section 03-00 for cleaning, inspection and testing procedures.

    Clean the external surfaces of the valve tappets, valve cover, cylinder head (6049) and cylinder block (6010) gasket surfaces.

  1. Apply Multi-Purpose Grease D0AZ-19584-AA or equivalent meeting Ford specifications ESB-M1C93-B and ESR-M1C159-A to the cam lobe contact surface of the valve tappets. Coat the rest of the valve tappets with engine oil. Install the valve tappets with a magnetic valve tappet remover.

  1. Apply Multi-Purpose Grease D0AZ-19584-AA or equivalent meeting Ford specifications ESB-M1C93-B and ESR-M1C159-A to both ends of the push rods. Install the push rods in sequence. Engage the rocker arms with push rods and tighten the rocker arm bolts sufficiently to hold the push rods in place. Make sure each push rod is properly seated in the valve tappet socket portion of the valve tappet.

  1. Adjust the valve clearance. Refer to the Adjustments portion of this section.

  1. Coat one side of a new valve pushrod cover gasket with Perfect Seal Sealing Compound F2AZ-19544-AA or equivalent meeting Ford specifications ESE-M4G115-A and ESR-M18P2-A, and position to the pushrod cover. Install pushrod cover. Alternately, tighten the cover screws to 1.7-2.8 Nm (15-25 lb-in). Clean the valve cover. Place the new valve cover gasket (6584) in the valve cover. Install the valve cover. Refer to Valve Cover and Gasket in the In-Vehicle Service portion of this section.

  1. Position the ignition coil (12029) on the cylinder block and install the attaching bolt or nuts.

  1. Install the distributor adapter, distributor cap and distributor to spark plug wires. Connect the distributor to spark plug wires and ignition coil to distributor high tension wiring (12298).