Tricky Ignition Problem?

[Chris Edgar]

Apparently HT leads increase in resistance over time and this can cause poor sparking and running etc.

I wonder if anyone has any idea that the increased resistance in an HT lead can then cause the rotor arm to short internally.

I seem to have had both occurring at once...took a bit of figuring out ..... no sooner had I thought it was fixed (new HT leads) when the car began to cut out again. This time rotor arm!

Cheers

[oliver90owner]

Never found the resistance of copper ignition leads to change - only the insulation might eventually go down.

Usual problem I’ve found, with carbon ignition leads, is continuity. Standard versions don’t like high power coils, for instance...

[myoldjalopy]

Maybe just coincidence both developing faults at the same time? Regards rotor arms, I have had a few failures of these over the years and would recommend you get a good red rotor from Distributor Doctor. I fitted one about six years ago and it has been fine ever since....

[Chris Edgar]

Thanks for the input!

regards
Chris