The oil drip calibration disc (regulator disc) fitted into the recess in the top of the regulating valve screw of both the early style of Best +Lloyd oil pump , with the tubular oil sight glass, and the later type with the 36 mm diameter disc type oil sight glass .
Suitable for such pumps where the original disc was the non-metallic type
The disc is engraved and has an Ivory hue
For pre-1922 pumps, consider using disc part number 64-462
Oil drip calibration disc with the frequently used pre-1922 number and lines Font.
The oil drip calibration disc (regulator disc) fitted into the recess in top of the regulating valve screw of the Best+Lloyd oil pump with the tubular oil sight glass. Suitable for pumps where the original disc was the non-metallic type. The disc is engraved and has an ivory hue
If your pump is Post-1921 consider using the disc Part Nr.57-462
Part No 54-462
Best+Lloyd type 2mm thick ,36mm diameter Oil Sight Glass and gasket kit.
36 mm diameter Oil Sight Glass- hardened glass, polished edges
2 mm thick upper gasket made from neoprene impregnated cork
1 mm thick base gasket made from neoprene impregnated cork
Three sets of gaskets per kit (6 gaskets in total)
Only one set of gaskets are required for the installation. The other two sets are spares for the future
Best +Lloyd oil pump Tank/Pump gasket. the “ L56 Joint washer”
Fits the more usual standard “1 inch” type of pump with the tube style oil sight glass, which went into production circa 1914,and the later style with the 36mm diameter disc type sight glass that went into production circa 1922/1923
“Three holes” footprint to take the three off 3BA fixing screws.
Part Nr 61-462
Part of that non return valve arrangement which is Post the sight glass
6.5mm long but can be trimmed down to 5 mm long to allow the length to be individually set for correct spring compression within the non-return valve configuration
Best used in conjunction with a 0.250 Inch diameter, 0.010-inch-thick stainless steel “Pen- steel disc”. Please see part Nr 59-462
Domed Head screws
1/8-inch BSW thread,40 threads/per inch
Screw A-Thread length 7/32 inch
Screw B-Thread length 5/16 inch
Two domed head screws are in the kit with a suitable dome profile and dome head diameter for those Best and Lloyd oil pumps with a metal pointer mounted on the disc face