Having just wired up the control unit / switch for an LPG conversion on my 1972 P5B I need to make a connection to the negative wire on the coil; from what I can see on my original coil, there is the main HT lead, one terminal with one wire and an armoured looking sheath going to the bulkhead. Is this the anti-theft coil that I've read about on previous posts?
I have an upgraded 12v (non-ballast) coil to go with the Ignitor unit (in place of the points) and want to replace the original coil with this.
Can anyone give me some pointers on how to remove the original coil and this armoured covering to the bulkhead - without knackering the wiring?
The armoured connection to the coil terminates in a plastic ring which is crimped into place by the top of the coil itself. Once this is uncrimped and loosened you will find the wire running down the armoured cable is simply attached to a normal screw down connection on the coil top. Be careful - there is relatively little spare wire length inside the armoured cable so you need to disconnect from the coil as soon as you can.
On the other end it is fairly easy to separate the armoured cable from the switch end once you've dismantled the steering column shrouding. There is not enough cable to reach the old position for the coil on the inner wing, so either leave the coil where it is or extend the wire.
Once the armoured cable is off, it is actually quite easy to move the ignition switch to the old place in the dash pod if you fancy. None of the wiring neeeds to be removed. I did this. You need a locking ring though. I used ones from an older car from which I got the blanking plate from the steering shrouding. I had the locking ring turned down a bit. If you dont want to do this you can leave the switch where it is on the column.