I've just blanked off my oiler, remove the 2 nylon pipes to the tops of kingpins and remove the brass fittings....now here is the interesting bit

With the brass fitting you will notice that the nylon entry to the fitting is 5mm in the brass fitting....grab a M6 tap wrench and tap it M6 and then fit a short M6 Allen bolt...ensure you use oil proof gasket sealant on all threads...a neat job and no special blanking plugs required.....

Later remove the oiler switch and pressure sender and locate it on the engine....but I await recommendations for an easy fix..and fit...

[Linked Image]DSC_0320 by Robert & Ali Davies, on Flickr

Morgans 1934 MX, 1947 Series 1, 1956 +4 TR4, 2000 +4 T16
Triumph Herald 1969 13/60
Morris 1970