Thanks to all for the input. As usual the issue was not what it
appeared. "Screw too long or hole too short?" The latter, in this
case. The adjustment screws had obviously never been fully screwed in.
By taking the frog and tote off to get a clear shot at the screw,
using some machine oil, and running the screw in and out multiple
times (I didn't have a tap that matched the Stanlley threads),
flushing with WD40, I was able to getthe screws in both planes to seat
fully. The frogs adjust just fine now.

10 minutes of thinking as a result of your responses and all is well.

Thanks.

Tom


Question 1 - Is this "too long" screw normal? I suspect it may due to
the irons (both original Stanleys, ca. 1930s) being short from many
honings - likely?

Question 2 - I can fix it by either shimmimg under the adjustment yoke
(moving it further aft) ot grinding 3 or 4 threads off the adjustment
screws. Which is preferable? BTW, these are both users, not
collectables, so staying original is not way up there.

Thanks for any thoughts.

Regards.

Tom