Ignition puzzle

[Tony Griffiths]

Tony,

can you run another car with the cap and all 5 leads as they are now?

Ah! I just swapped the distributors over but used the caps and leads already on the other cars. Tomorrow I'll try your suggestion of swapping with the cap and leads intact.

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Hi

It sounds as though a "spark" is being produced by the coil, but not getting through the HT side of the distributor.

Some possibilities:

Short to ground (or poor insulation/breakdown) within the rotor arm ?
Rotor arm correct shape for the rotation direction of the distributor ?

Also, what's the battery voltage ?

Edit:  Ignore the bit about rotor arm shape, there's no "tail" to accommodate centrifugal advance for that era.

It's a new battery giving 7.2 volts. The rotor arm works when used on the other cars so that seems to be OK - though I have a new one I'll try. R's suggestion of swapping over the cap and leads as well I'll try tomorrow.
I've another option as well, I've just built up a Ruby distributor - which works - and I'll try that on the non-running car as well.