Choose split ring that best fits retainer.
the two screws closest to the slot (only enough to retain the split
ring in the slotted tool body.
tool over retainer and tighten the lower thumb screw to lock tool on
Tool works best if the retainer margin is at least 1/16”
wide; this is easily accomplished by chucking retainer in a lathe and
turning a small amount of the outer diameter to increase the margin
tighten thumb screw only enough to hold tool securely on retainer; the
threads are aluminum and over tightening will strip them.
the top thumb screw and lower indicator on to rocker arm.
indicator at least .050; be certain rocker is in contact with valve
tip or lash cap.
indicator bezel and align needle to zero on indicator dial.
and lower rocker arm from push rod to make certain indicator returns
gap is displayed in .001 increments on dial.
rocker to desired valve lash.
arm ratio will not affect accuracy because tool always places
Indicator directly over the valve stem center.
diameter split rings are available upon request.