Flinger tapped back, oil seal now rseated ok and flinger found to also be rattling due to shaft taper.... I cleaned up, and pushed up against hub. dollops of glue gun around the fit, brought back by a few mm and then hot air gun to let it run in around fit. Plenty more glue gun aorund shaft above flinger (for good measure). Looks somewhat unsightly but it'll do the job
and shaft spins nicely still.