If spark can jump a gap of up to 1/2" why does there have to be solid " contact " with the spring thingy in the boot ?
I agree that jumping .5 inch should allow the HV to jumps across an oxydized pin then over to the plug...yet I have encountered this issue and the cure was to trim the wire a bit and repunch the pin dead center into the metallic wire.
the HV can't jump across a resistive point if it exceeds its capacity " to jump"
Case in point , HV does not " jump" across the thin lining of the HV cable because of its insulation capacity. I suspect that an oxidized. coating on a misaligned pin
has the same effect…..
preventing the plug from firing
In my case, it certainly did. scapping & repunching the pin solved the problem .
" Our's is not to reason why our's is to do or row back to shore"
same issue with a break in a bend