As long as you can still get an engine to fit in the mount, it should be fine. Once you have confirmed an engine can fit, then just add a little bit more glue to the top of the thrust ring, it should have no problem holding a 13mm motor.
Because of very tight tolerances of centering rings like this, I have learned to dry fit parts before adding glue. If I can’t get the parts in place easily, then I sand them down a little until it slides in without resistance. Then I am ready to glue the part in place.