You don't even have to remove the dizzy to turn it by hand and check
hall generation of spark and injector pulses. Just loosen the 13mm
headed nut that holds the dizzy bracket to the block. Leave the nut on a
couple threads. Pull up on the dizzy until it clears the internal
keyway. Then spin the rotor by hand with the key on. You can hear the
fuel pump run, watch for spark from the coil wire to engine metal, check
the injector spray pattern. Very quick and handy, does not change the
timing. You should get a spark for every 90 degrees rotation of the rotor.

Make sure you seat it all the way back down and at the same rotor angle
as when you began. Pull the cap as the first step, note rotor angle,
return to same position when done.

Mark

Scott Daniel - Turbovans wrote:
> hi Michael,
> I was just suggesting the same sort of test for TJ.
> it sure did the trick in your case - i.e. 'found the problem' .
> not everyone knows 'scott foss' is also 'scott daniel.' , my normal online
> 'handle.'
>
> it's kinda fun to turn the distributor by hand, see the spark zap to
> ground,
> and hear the fuel pump buzz/whirl, then shut off.
> Like seeing those two results from turning energized electronic components
> happen .........you know it's alive !!
> and you feel much more like YOU are making it happen, seeing the result
> from
> each half turn of the distrubotor, done with your fingers.
>
> scott daniel foss
> turbovans.com
>