373. Parts of Best & Lloyd oil pump replica

1. a)flange screw 5/32“          
2. b)locating flange               
3. c)adjusting cam        
4. d)fibre washer      
5. e)steel piston  
6. f)gear wheel and sleeve
7. g)worm drive
8. h)pump body 
9. i)cap fibre washer
10. j)end screw cap
11. k)fibre washer 
12. l)spigot dia 6mm
13. m)spigot nut G1/4“ 

drive worm a) to fit the pump to exthaust cam (aticlockwise rotation) , 
  6,3mm = 1/4“ tenon width

drive worm b) to fit the pump to exthaust
  cam , tenon must be machined to engine
  counterpart
drive worm c) to fit the pump to intake
  cam (clockwise rotation) ,
  6,3mm = 1/4“ width tenon width