Aviator AWD V8-4.6L DOHC VIN H (2003)
12. CAUTION: Unless otherwise instructed, at no time when the timing chains are removed and the cylinder heads are installed is the crankshaft or
the camshaft to be rotated. Severe piston and valve damage will occur.
CAUTION: Rotate the crankshaft counterclockwise only. Do not rotate past position shown or severe piston or valve damage will occur.
NOTE: The number one cylinder is at Top Dead Center (TDC) when the stud on the engine block fits into the slot in the handle of the special
tool.
Using the special tool, position the crankshaft so the number one Cylinder is at TDC.
13. Remove the special tool.
14. Position the LH (inner) timing chain on the crankshaft sprocket, aligning the copper (marked) link with the timing mark on the sprocket.
15. Install the LH timing chain onto the camshaft sprocket, aligning the copper (marked) link with the timing marks on the sprocket.
16. NOTE: The LH timing chain tensioner arm has a bump near the dowel hole for identification.
