LS 460 V8-4.6L (1UR-FSE) (2007)
(f)
Using the hexagonal portion of the No. 4 camshaft, align and attach the knock pin of the No. 4 camshaft with the pin hole of the camshaft
timing exhaust gear assembly.
NOTICE: Because the gears' timing mark positions may shift due to looseness of the No. 1 chain, use the hexagonal portion of the camshaft
to hold the No. 3 camshaft in place until the No. 1 chain tensioner is installed.
(g) Remove the pin from the No. 2 chain tensioner.