Dura Ace Cranks, fucked?

If you install an ISO crank on a J.I.S. spindle,
it will sit about
4.5 mm farther out
than it would on an ISO spindle of the same length.

Confersely, if you install a J.I.S. crank on an ISO spindle,
it will wind up about 4.5 mm farther in
than it would on a J.I.S spindle of the same length.

"sheldon Brown"

i dont think that's whats wrong.