At the start of the indoor model section at the annual Lincolnshire Steam rally which is held in August , there's normally a chap with stall selling all manor of Meccano parts , including clockwork motors , which may be capable of being adapted . Although I don't have any contact details for him , maybe the show organisers , or even the local model engineering club , who also attend will .have.
Another option would be the Meccano Guild .
Meccanoman has a number of clockwork motors for sale .
Hope this all helps.
Edited By Trevor Drabble on 07/05/2020 23:39:34