adhards

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About adhards

  1. adhards

    Troubleshooting no spark

    Well bloody hell. Didn't get continuity still with the button in or out so I just took that twin cable you see between my fingers and put that on the dizzy and now I get a big fat spark from the coil HT lead when cranking the engine!!! So my theory here is that my 3 year old son pushed this button past it's lifespan. He sits in there happy as Larry for ages while I'm tinkering. I'm so sorry to have roped you in to such a trivial problem but if it's any consolation, you've all taught me a lot about ignitions and electrics in general. I wish I could buy you all a pint!
  2. adhards

    Troubleshooting no spark

    Good eye indeed, it wasn't quite touching but I gave it a little more gap. Not sure if I'm being stupid now or if I'm on to something but as I've gone to check the continuity of the cable between the coil and dizzy, I traced the cable back from the dizzy (this is the badly crimped one) and it goes through the firewall and to a window heater button in the centre console. Then the cable coming back from that button is the other one I marked in red below. That goes to a dual wire that then goes back into the bunch of cables running along the firewall Could this be some sort of crude immobiliser?
  3. adhards

    Troubleshooting no spark

    I should add that the ground wire on the coil goes into the bunch of cables running across the back of the firewall and then into the main wiring so I don't understand how that connects to the distributor
  4. adhards

    Troubleshooting no spark

    This sounds like a good plan but where do I touch the meter on the distributor?
  5. adhards

    Troubleshooting no spark

    Here's some photos I'm glad you said that as I'm sure there isn't one. This Im not sure, there doesn't seem to be one in the area or on the firewall but the car is RHD so maybe somewhere else. I'll need to have another search
  6. adhards

    Troubleshooting no spark

    They definitely open and close, I checked that closely with a light and can see the movement clearly when I crank the engine. Am I right in thinking that with the ignition on and the points closed I should get 12v from the arm of the points? And with them open, I should get 12v to on the little black wire inside the distributor that goes to the condenser? I don't see that at all. And Im using the same ground point for the multi-meter that I used to confirm 12v through the coil. They definitely open and close, I checked that closely with a light and can see the moved clearly when I crank the engine. Am I right in thinking that with the ignition on and the points closed I should get 12v from the arm of the points? And with them open, I should get 12v to on the little black wire inside the distributor that goes to the condenser? I don't see that at all.
  7. adhards

    Troubleshooting no spark

    I haven't adjusted them. The first time I removed moving side was just now when I cleaned them
  8. adhards

    Troubleshooting no spark

    I've just confirmed that I have 12v coming into and out of the coil but when I put the HT lead from the coil onto the same spot I was just using for a ground on the multimeter I don't see a spark when the engine is turned over. I also removed the points and cleaned them up some more with some super fine sandpaper but still no joy. At this point I think I should go for trying a new condenser
  9. adhards

    Troubleshooting no spark

    Hi Chris, sorry, electrics are the dark arts to me but it's becoming more clear in this post! The car does turn over no problem there. The coil is not a Bosch but the car has run for a few mins a couple of times and I've not done much to the car since then. I currently just have the air filter housing removed. Coil is a Lucas BFU 21949600 I do get 12v at the positive on the coil but only when I touch the negative metre wire on the rocker cover. Should I always see 12v at the coil or only when I crank the engine? If I should always see 12v then I definitely have a bad ground to the coil. Thanks for the detailed explanation of testing from the coil HT lead, I'll carry that part out this evening (7:15am here in the UK) and report back for sure. Before that though, I will go and remove, clean and replace the grounds on the block and body. Cheers
  10. adhards

    Troubleshooting no spark

    Ah Simeon, this is what I'm not clear on. I don't know exactly what results I should be expecting. As you can see from my last post, I wasn't sure what I should see coming from the centre terminal on the coil. I am using points, its a very standard setup and I can't find a ballast resistor. If I have everything connected up, as I think it should be, I don't see 12v when touching the + and - on the coil but I do if I use a jumper wire to connect the - terminal to the rocker. From what you said about the test light, it sounds like this is normal?
  11. adhards

    Troubleshooting no spark

    Thanks for this Mike and Dudeland. Although the car is not in great shape, it was in dry storage for those 9 years and the contacts in the distributor and the end of the rotor are fine, as is the rotor. I did give them all a clean anyway but I think the problem is before the rotor end and plug leads. I do kinda understand the order of which to troubleshoot this but not the results I should see at each step. There is 12v at the end of the HT lead with the other end plugged into the coil but if I hold the end of that cable to the rocker with ignition on I don't get a spark. Should I? Do I have to turn the engine over? So with 12v coming from coil HT lead, I should check the points? How is that done, I've tried touching the coil HT lead on the top of the rotor then opening the points but I dont see a spark between the points. I also tried this with the rotor arm removed and touching it on spindle that the rotor arm attaches to.
  12. Hello guys, I've done as much testing and reading as I can before posting here but have now got to a point where I don't know what to do next. My car is a 1973 2002 that's been sat up for 9 years. There seems to be a problem with the ground on the coil. I can get 12v from the coil HT lead but only if I use a piece of wire to connect the ground on the coil to the rocker cover. But even with this in place and a healthy +12v right through to the centre pin in the dizzy I then don't get any spark at the plugs. I have tried opening the points while the ignition is on and don't get a spark there either. Does anybody know if I should be able to get a spark with this temporary earth wire in place? And I guess I should try to solve why the earth to the coil is bad first so can anyone help me with why this isn't working? many thanks, Ad