Perhaps my 46 year old Thorn Harcal 460 is the last one in use, but its time is running out. The Danfoss RS 28 oil pump is leaking from the shaft area area and when I replace the 'O' rings, it only remains dry for about 20 hours runtime. Any suggestions would be welcome and if anyone has an RS 28 they would like to sell, please let me know.

Harry, March 2023

Why not contact Danfoss and ask whether there's a drop in modern replacement or conversion kit?

Dndn, March 2023