[AzCal Retred]

Thanks for that link. BW does fine work as always. My thought was to carefully cut away the existing filter cavity, tap a fitting into the back wall where the pump supplies oil to the filter, plumb out & back to the remote filter, then tap another fitting back to the normal quill bolt supply passage in the side of the old filter cavity. The filter would be mounted on the lower front engine plates, upside down. Oil changes would then be mostly filling the new filter up with oil & screwing it on. As minimal amounts of air are left in the system, the rod bush should have oil within 10-20 seconds at idle.

As Stinkwheel has pointed out, his machines when starting life with clean engine cases seem to produce minimal oil pump wear, even over extended intervals. The remote pump would be a good fix for a damaged filter housing, where the filter cavity had been compromised. Otherwise the OEM lash-up is likely adequate for everyday use & abuse.