Sounds like a Compression Test might be in order.
Cheers,
Wayne
> Listerati,
> I am now almost at my wits end and considering TR arson or other forms of
> destruction.
> It still appears to be missing on No 3 as plug is sooty (powdery rather
> than oily) while others are burning clean. I have;
> Changed the condenser
> cleaned and reset the points and timing
> checked all HT leads for continuity
> changed the spark plug
> tried another coil
> dismantled cleaned and reassembled carbs
> replaced the earth wire between distributor and engine block
> checked LT wires to coil for continuity while jiggling them around
> checked fuel squirting out of pipe before carbs while turning engine over
> and getting strong squirts
> cheched compression which is the same on all cylinders
> connected the No 3 plug lead to a plug resting on the rocker cover and it
> is sparking
> The only thing that I can now think of is there maybe an invisible crack
> in the distributor cap. Is there a way of checking this of do you need to
> buy a new one to see if that works?
> Any other ideas?
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