[retiredblue]

OK here is the dilemma. I am about to button up the dash on my 64 hard top. The dash lights work as well as the high beam indicator. I have the alt wired up correctly and there is 12+ volts across the bulb when the car in in the "ON" position, just prior to "START". BUT The light will not light. I have a new bulb in the scoket and I cleaned out the socket.

Here is my wiring set up, the wire comes from the ALT to the external voltage reg from the ext volt reg ,I term of the ext voltage reg to the wire that goes to the GEN light the from the light to the fuse box.

any ideas? This is an after market wiring harness BTW.

[LATECH]

It sounds like you just need the correct bulb. The one you have may have too heavy of a filament.I dont recall what number it is supposed to be. The current flowing to the I term via the bulb circuit isnt enough to light the light.
try a different bulb.They have different numbers printed on them.
Also some of the autolite systems had a drop resistor wired in parallel with the bulb to create enough voltage drop to force the bulb to light.Yours may be missing.

[LATECH]

I just checked the MOTORS manula for 1967 and it showed one diagram for a ford charging system with a light.. It had the drop resistor in the circuit.
Just get a 15 ohm 1/2 watt resistor from the shack and wire it across the 2 wires to the bulb socket (parallel).
You should be able to just push the resistor leads into the back of the socket connectors if you want ,so as to test it first.
Once you verify operation that way then move to a permanent attachment of said device.

[vicrod]

Even though the bulb is new I would test it to make sure it works.

vicrod

[LATECH]

Originally Posted by vicrod

Even though the bulb is new I would test it to make sure it works.

vicrod

HEE HEE yeah, better start with the basics, My bad.

[retiredblue]

well guys I was at it all day and guess what? bad external voltage regulator. I bought that reg about 3 months ago and never really used it, as a matter of fact when i fired up the engine for the first time on Thursday, was the first time any electricity ran through that reg. the only thing I did was paint it red, maybe its true what they say about putting red parts on a Ford blue car hahaha. Thanks for the help though