Andy wrote:No, part# 15 is a twat to get out. To be honest, I've never replaced one. When we've had cases vapour blasted, we bung it up, so no media can get in there.

Love the technical terminology!

Small bearing puller maybe?
or adapt a pair of cheap circlip pliers to use as a puller
or drill the cage to weaken...no sounds a bit dangerous that close to the case wall

Err... will a little heat on the alloy work in that area to make it easier?