I presume this is something that can be done insitu with the oil in (barring a few drips) at a cold engine oil level? I may do this today as a bit of preventative maintenance.
Actually, since I see Obie here, the other bit of preventative maintenance I wanted to do is grease/spray my centa rollers in case it helps prolong life (something Phil hinted might be the case. I’d need to drill a small hole at the base of the centa housing (current inspection hole is at the wrong side). I believe you’ve made such a hole? Can you confirm it’s aluminium? Should be an easy job if so...