My project now drives. However I’m not getting any signals going to my tach or Speedo.

I believe I have not connected the instrument cluster wiring correctly.
Does the tach receive its input signal from the ignition coil? What colours are the cables coded in?

My car was a 3.6 auto. It is now a 4.0 manual. I have used the wiring loom from the 4.0 and have spliced the relevant cables together in the cabin at the end Into the 3.6 internal loom. i have based this on connecting the same colour wires.

A further point, on my instrument cluster, the indicator lights are permanently on, not flashing, constant, when indicating they do flash. Also the high beam is not operating when switched. Could these be a symptom of the same problem? Is it also related to my tach and speedo not working? maybe a ground in the cluster area?

Once these two things are fixed I am back on the road after a year of restoring. Last hurdle, please help!

 

AH Yes , you have the Famous Lucas electrical problems,, THE Prince of darkness!
sounds like a ground (earth) connection!
ron