Valve Tappets: Installation

NOTE: Lubricate the valve tappets with clean engine oil.

Fig 1: Installing Valve Tappets

Courtesy of FORD MOTOR CO.

Install the valve tappets.

CAUTION: Install the camshafts with the alignment notches in the camshafts lined up so the camshaft alignment plate can be installed. Make sure the lobes on the No. 1 cylinder are in the same position as noted in the removal procedure. Failure to follow this procedure can cause severe damage to the valves and pistons.

NOTE: Lubricate the camshaft journals and bearing caps with clean engine oil.

Install the camshafts and bearing caps. Tighten the bolts in the sequence shown in three stages.
- Stage 1: Tighten the camshaft bearing cap bolts, one turn at a time, until the cam is fully seated.
- Stage 2: Tighten the bolts to 7 Nm (62 lb-in).
- Stage 3: Tighten the bolts to 16 Nm (12 lb-ft).
  
  Fig 2: Camshaft Bearing Cap Bolts Tightening Sequence
  Courtesy of FORD MOTOR CO.
Install the special tool.

Fig 3: Installing Special Tool (303-465)
Courtesy of FORD MOTOR CO.
Install the timing chain. For additional information, refer to TIMING DRIVE COMPONENTS .
Confirm each valve's clearance at base circle with the lobe pointed away from the tappet.

Fig 4: Measuring Valve Clearance
Courtesy of FORD MOTOR CO.