[TR] TR4A missing. The saga continues....

[ZinkZ10C at aol.com]

Swap plug wire 3 to cyl 4 ( on both ends ), run the car, if the problem
moves, you have a leaking wire.

If not, inspect the cap for a _carbon track_, caps usually don't crack, they
get a line of carbon on the inside that conducts electricity.  Sure the plug
will spark at atmospheric pressure, but when the cylinder pressure rises the
gap is more difficult to jump.  This causes the voltage to rise and the
electricity to follow the carbon track.

If your distributor has enough range of adjustment, you could move the wires
on the cap one tower position then move the dist in the opposite direction one
tower.  This would put each cylinder on a different tower but not affect
timing.  If the problem changes cylinders there is a problem with the cap.  

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