Another oil change today. The last change was performed by my local dealer at the 2 year / 20,000 km service, at the end of the warranty period.
So you can understand my surprise to find the oil filter cover in two parts; one of the ears had been snapped off. Possibly the cover wasn't perfectly aligned during reassembly, who knows.
The upshot is a new cover ordered, and a makeshift repair with JB Weld. I am hopeful that the repair will cure and be sufficiently strong to allow use of the bike while the replacement part makes it's way to New Zealand.
As with my last Enfield, in future all servicing will be conducted in my own workshop.
Photos are of the cover joined and about to be clamped for the next 24hrs.