1924 ABC car OIL PUMP

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 ?


 

Found that the  pump is a ‘Best and Lloyd’   worm drive pump driven off the the camshaft.
It appears was of a type fitted to a variety of motorcycles and and early J.A.P engined Morgans.

Dismantling, cleaning and reseting it has  solved the issue.

Incidentally it seems in 19C,  the same firm made made precision gas light fittings 
A rather unusual trade mark carried on with the  pumps!


Managed to find some literature and diagrams of the pump - quite a lot of pages don’t think 8 can attach here?