No Tacho after accuspark and Ballast resistor
Posted: Sun Nov 11, 2012 9:47 pm
Hi,
I have a 1972 Elan +2S130 (UK) and I have just made the following changes to try to improve starting;
1. Replaced points with an accuspark electronic ignition
2. Changed back to the original configuration of a ballast type resistor coil
Now the car will start but the taco does not work. What is the likely cause (accuspark, ballast wiring or something else)? It should be noted it has not been running for 3 years so it could be unrelated to these changes!
The wiring diagram in my elan manual does not show the wiring for the balast type coil. When I originally had the car 10+ years ago it had a ballast type coil and the resistor broke. At the time I could only get a standard 12v coil so put that in and never got round to changing it back. I believe that I taped over the wire that provides the 12v that bypasses the resistor. This wire is pinkish with a very think yellow line. The wire that is on to the coil permenantly during running is the same colour without the yellow line (just pinkish). The workshop manual does not show the wiring for the ballast type resistor. Does anyone know the wire colours that I should expect for all the +ve side of the ignition and what should be wired to what?
Many thanks for any help.
Cheers
Ed
I have a 1972 Elan +2S130 (UK) and I have just made the following changes to try to improve starting;
1. Replaced points with an accuspark electronic ignition
2. Changed back to the original configuration of a ballast type resistor coil
Now the car will start but the taco does not work. What is the likely cause (accuspark, ballast wiring or something else)? It should be noted it has not been running for 3 years so it could be unrelated to these changes!
The wiring diagram in my elan manual does not show the wiring for the balast type coil. When I originally had the car 10+ years ago it had a ballast type coil and the resistor broke. At the time I could only get a standard 12v coil so put that in and never got round to changing it back. I believe that I taped over the wire that provides the 12v that bypasses the resistor. This wire is pinkish with a very think yellow line. The wire that is on to the coil permenantly during running is the same colour without the yellow line (just pinkish). The workshop manual does not show the wiring for the ballast type resistor. Does anyone know the wire colours that I should expect for all the +ve side of the ignition and what should be wired to what?
Many thanks for any help.
Cheers
Ed