100E / 105E Light Switches

Twist / pull type were commonly made in England by Arcoelectric, established in 1932 and remains a leading manufacture of switches and indicators.

These switches can be refurbished if the unit isn't damaged or contacts are too worn beyond repair.

Dismantling:

Remove the 5mm nut with long nose pliers. Check each removed part for extensive wear. Use a Dremel type motor with a rotary wire brush to clean and polish the contacts and spindle shaft.

Re-assemble:

Observe all spring loaded tabs make contact. You may have to bent the tab a bit for firm contact.
Apply lock-tite type sealant on the nut thread. Tighten the nut lightly with the shaft in the pull out
( lights on ) position.

Operation and continuity check:

Connect an Ohm meter to the switch terminals and rotate / pull to check operation and continuity.
Oil shaft with light oil . Spray a bit of WD-40 inside the switch if operating it is noisy.

License Plate Light Assemblies

Application:

Butlers A-L-60 for 105E / 109E
Wards & Goldstone Ltd SAE 6-61 for 114E-13543.

Replace damaged or rusted light sockets with instrument light sockets that fit in a 5/8" diameter hole.

Reproduction assembly:

Use 1/16" sheet metal. Cut and bend to desired size and mounting angle. 5/8" light socket hole(s).
My preference for a chrome cover, glass, and gasket is from an early MGB which are easily obtainable.
Light sockets are 105E / 109E or Cortina MK1 / MK2.

Remove light socket from bottom of assembly for easy light bulb access. Snap socket in place with low adhesion silicon to prevent moisture exposure.

Reproduction bracket; 3 types of 5/8" English Ford light sockets; MGB cover, glass, gasket and screws)

114E original bracket; 105E instrument light sockets

On the left, original 105E light assembly. On the right, reproduction assembly.