Not sure that they are called but the small caps that fit into the rockers on the end that hits the valves.
Mines worn and I can't get the gap I need.
1927-29 model 90.
Let me know if this isn't clear :)
Have you tried Les Hobbs, our spares man? Contact details in Beaming.
Paul
Yup, he recommended Chris Odling.
The part is winging its way to the middle of nowhere as we speak to be used as a pattern.
I'm in no massive rush as its started raining.........again.....
Thanks
Dave