E 250 3/4 Ton Van V8-5.4L CNG VIN M (1997)
10. Install the timing chain on the camshaft sprocket with the two chain links and timing marks aligned.
NOTE: Be sure the upper half of the timing chain is below the tensioner guide dowel. If necessary, use the Camshaft Positioning Tool to adjust.
11. While maintaining the timing chain position, tighten the Camshaft Holding Tool.
