Removal and Replacement

Camshafts

Special Tool(s)






Material(s)






Removal

NOTICE: During engine repair procedures, cleanliness is extremely important. Any foreign material (including any material created while cleaning gasket surfaces) that enters the oil passages, coolant passages or the oil pan can cause engine failure.

NOTICE: Do not rotate the camshafts unless instructed to in this procedure. Rotating the camshafts or crankshaft with timing components loosened or removed can cause serious damage to the valves and pistons.

1. With the vehicle in NEUTRAL, position it on a hoist. REFER to Jacking and Lifting .

2. Check the valve clearance. REFER to Valve Clearance Check .

3. Remove the camshaft phaser and sprockets. REFER to Camshaft Phaser and Sprocket .

4. NOTICE: The Camshaft Alignment Tool is for camshaft alignment only. Using this tool to prevent engine rotation can result in engine damage.

Remove the Camshaft Alignment Tool from the rear of both of the camshaft slots.





5. Remove the 2 bolts and the 2 VCT (Variable Camshaft Timing) solenoids.





6. Remove the 3 bolts and the front camshaft bearing cap.





7. NOTICE: Failure to follow the camshaft loosening procedure can result in damage to the camshafts.

NOTICE: Note the position of the camshaft lobes on the No. 1 cylinder for installation reference.

NOTICE: Mark the location and orientation of each camshaft bearing cap.

Remove the camshafts from the engine.

1. Loosen the camshaft bearing caps in sequence 2 turns at a time until all tension is released from the camshaft bearing caps.

2. Remove the camshaft bearing caps.

3. Remove the camshafts.






Installation

1. NOTE: The exhaust camshaft rear bearing cap must be secured within 10 minutes of Gasket Maker application. If the bearing cap is not secured within 10 minutes, the sealant must be removed and the sealing area cleaned with Motorcraft(R) Metal Surface Prep.

NOTE: Do not allow Gasket Maker to enter the camshaft bearing journal. If Gasket Maker is applied to the camshaft bearing journal, the journal and sealing area must be cleaned with Motorcraft(R) Metal Surface Prep.

Apply 1 mm (0.039 in) beads of Gasket Maker to the exhaust rear camshaft bearing cap as shown.





2. NOTICE: Install the camshafts with the alignment slots in the camshafts lined up so the 303-465 (T94P-6256-CH) can be installed without rotating the camshafts. Make sure the lobes on the No. 1 cylinder are in the same position as noted in the removal procedure. Rotating the camshafts when the timing chain is removed, or installing the camshafts 180 degrees out of position can cause severe damage to the valves and pistons.

NOTICE: Failure to follow the camshaft tightening procedure can result in damage to the camshafts.

NOTICE: Wipe off any excess sealer from the fuel injection pump housing sealing surface of the cylinder head and rear camshaft cap.

NOTE: Lubricate the camshaft journals and camshaft bearing caps with clean engine oil.
Install the camshafts and bearing caps in their original location and orientation.
- Tighten the camshaft bearing caps 2 turns at a time in the sequence shown in 2 stages:
- Stage 1: Tighten to 7 Nm (62 lb-in).
- Stage 2: Tighten to 16 Nm (142 lb-in).





3. NOTE: Lubricate the camshaft journals and the front camshaft bearing cap with clean engine oil.
Install the front camshaft bearing cap and the 3 bolts.
- Tighten in the sequence shown in 2 stages:
- Stage 1: Tighten to 7 Nm (62 lb-in).
- Stage 2: Tighten to 16 Nm (142 lb-in).





4. Install the 2 VCT (Variable Camshaft Timing) solenoids and the 2 bolts.
- Tighten to 10 Nm (89 lb-in).





5. NOTICE: The 303-1565 is for camshaft alignment only. Using this tool to prevent engine rotation can result in engine damage.

Install the 303-1565 into the rear of both of the camshaft slots as shown.

- Tighten the retainer.






6. Install the camshaft phaser and sprockets. REFER to Camshaft Phaser and Sprocket .