Currently looking at the oiling system on the 1924 ABC and trying to find out about the oil pump .
There is little mention in the handbook other than setting the drops per minute and that it is a ‘‘Roto Plunger’
The parts catalogue shows the bits at 1922 prices..
Looking at another site, it seems that a similar pump was used on some Norton bikes of same era
In which case, the pump will have been made ‘ Best and Lloyd ‘
Can anyone help with information at all, please ?
