1970FuryConv
Old Man with a Hat
Backside, spades B1, B2, H, R factory marks
Input Current
B1 Upper vertical spade, L1 16BK, from junction with wire from Battery feed at FB, provides headlight power
B2 Upper horizontal spade, L8 18P, power from taillamp fuse at FB, provides taillight and IC light panel power (2nd wire provided power to key on buzzer, disconnected)
Output current
H (headlight) lower horizonal spade, L2 16LG, foot dimmer > HL, and concealed HL relay (time delay relay deleted)
R (rear) lower vertical spade, L7 18BK to TL and L7A 18BK to Dimmer, which provides power for IC light panel
Resistance B1 > H: 2.3 ohms with headlight switch on, infinite with headlight switch off
Resistance B2 > R: 6.4 ohms, headlight switch in parking light position, varies from 127 ohms to 2000 ohms with headlight switch in on position. Resistance is infinite with headlight switch off.
Question: what makes the headlight switch contacts stay clean, while the taillight contacts get worn and/or dirty?
Question: is there a way to remove the black rear cover and clean the switch internals?