Setting valve lash
Need some help on this one.
CompCams tells me this
Hydraulic Flat Tappet and Hydraulic Roller Camshaft
: First turn the engine in the normal direction
of rotation. Start with cylinder number one (1). When the exhaust valve begins to move, adjust the
intake valve to zero lash plus an additional ½ turn more. Rotate the engine over again until the intake
valve reaches maximum lift and is almost all the way back down. Then set the exhaust valve to zero
lash plus ½ turn. Adjust the valves on each cylinder in this manner until all valves are adjusted.
My question is, how do I know when a valve is "almost all the way down".
I think there would be a little more precision to it than this.
Any help would be greatly appreciated.
Wes