Back in 2010, it was suggested that a fix for the front caliper pin rattle is: "...replacing the #13 caliper pin with the #23 p/n on the front brake parts exploded view on any of the honda parts stores. The lower pin has a noise dampener part of the pin (rubber sleeve) which I use on the top part of the caliper as well as the bottom hole. Now there are two noise dampening pins which eliminate any rattles.I also make sure I grease the pins with white lithium grease,I have had great results. Give it a try."
I have the rattle on my 2002EX and have ordered #23 but am not clear on the above suggestion. Question I have is, do I substitute #23 for #13 entirely or do I just remove the rubber sleeve from 23 and slide the sleeve over the existing #13? Reason for the question is this: the two pins themselves are not identical; one has a straight shaft and the other narrows and has a flanged end (see pic from Autozone below). For whatever reason, Honda designed the two pins differently, and although I want the rattle to go away, I am a bit leery of doing too much re-engineering.
Thus, I am inclined to think that the best way to go is to remove the rubber sleeve from 23 & reinsert it on 13 (unless the sleeve is permanently affixed to #23) as opposed to simply swapping #13 with a #23.
I'll have a better idea after I pick up the 23, but will be grateful for advice from anyone who has utilized this solution.