Paul G wrote:Modern plugs are of a higher resistance than the older ones that the book may quote.
Getting back to your problems what are we trying to fix? Is it the ignition staying on and the starter running after you've switched off the car, whether the right coil is fitted or the bad running of the car? I'm getting lost myself my friend!
With the car's running. before mucking about with which plug or the choke etc it is important that you check the points are in good condition, gapped properly and preferably set to 50 degrees on a dwell meter followed by setting the ignition timing with a strobe light to 8 degrees BTDC. See how it runs with this done.
If it's still playing up could I suggest politely that you find a local mechanic who knows older cars to have a look at it.
The running with the keys out worries me and I would suggest you disconnect the negative battery terminal when the car isn't in use until the mechanic has checked it.
Haha it is indeed confusing! The ignition and starter staying ON has happened only once so far, so not sure if we're trying to fix it anymore. If it happens again I'll take it to a garage. The ignition coil is the same one where it was idling cold with choke out just fine. So the problem to fix at this stage is the car not been able to idle when cold. From the sound of the engine, it sounds like some cylinders are not firing until it really warms up properly, so I was thinking about the strength of the sparks and ignition coil voltage. But it could be something else entirely?