MSD 6A & rotor gaps

[Barry Tisdale]

Awhile back, while trying to troubleshoot an engine miss situation, I cut 
away a 'window' in a used distrib cap on a spare distributor to see if 
there might be a prob there.  Various rotors gave gaps between .020" and 
damn near 1/8".  Oddly enough, the distance between opposite electrodes in 
several caps was practically the same - most variation was in the length of 
the 'finger' on the rotors.

What relationship does rotor / cap gap have to ignition performance?  Seems 
the smaller the gap there, the better - right or wrong??

Barry - Sy#26
Bangor, MI

At 09:13 PM 11/27/01 -0500, you wrote:


>Just out of curiousty have you ever measured any air gaps (cap / rotor)
>looking for the best setup?.
>Are the sure the MSD actually cured anything?
>Bruce

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