Good info, Rick. Thanks again.
The picture also clears up what can't be seen on the exploded diagram. Looks like the pushrod, or 'strut', can't fall into the pan. It is shown as a separate part, however. Does it look threaded? I'd like to remove the bolt to cut a screwdriver slot in the end, but wouldn't want to risk losing that pin.
Can't understand the logic of the shear-off style adjuster. If you overtightened it enough to shear it, you couldn't back it out the 1.75 turns...

PETE