F 150 Heritage 4WD Pickup V8-5.4L SOHC VIN Z Bi-fuel (2004)
3. CAUTION: Unless otherwise instructed, at no time when the timing chains are removed and the cylinder heads are installed is the crankshaft or
camshaft to be rotated. Severe piston and valve damage will occur.
Position the crankshaft with the keyway at the 12 o'clock position.
4. Install and fully tighten the special tools on both camshafts.
5. Remove the timing chain tensioning system from both timing chains.
1
Remove the bolts.
2
Remove the timing chain tensioners.
3
Remove the timing chain tensioner arms.