@DavidCBroad
I completely agree. Today I decided to service my 47 as it has been roughly a year since I have ran it for any long period more than around 15 minutes. It started well but hissed and smelt of overheating electrics at low speed. Upon further investigation the brushes had been almost melted in the heat of an unventilated Lima motor casing. Cleaning the commutator helped and powering it to full speed whilst not on the track seemed to give it new life. However, the commutator brushes had reduced in size by almost half. Hopefully, by replacing the brushes and springs it should help as an interim measure, but I probably will buy a Hornby Ringfield motor for eventually replacing the old Lima. I have also taken the decision of temporarily retiring my 47 and replacing most of its passenger services with another 47’s and replacing its shunting/ freight work with a 08 shunter I bought recently with exactly this thought in mind.