Change your paradigm. Pull all the plugs, loosen the distributor, turn the distributor until a plug sparks.
If it doesn't spark, pull the cap and rotor and rotate the distributor until the contact opens. Mark that spot. Now you know where the spark should occur. Put the cap and rotor back and try to spark the plug again. To time an AT4, set the #1 cylinder to near TDC, top dead center, move the flywheel to to advance mark, rotate the distributor until the contact separates and sparks. This is called a static tune. It will get you very close if you don't have a timing light. I've forgotten the recommended degrees of advance for an AT4. Dennis C. Touché 35-1 #83 Mandeville, LA Sent from my iPhone On May 19, 2013, at 9:54 AM, Bob Moriarty <bobmo...@gmail.com> wrote: > This may be obvious to some but did not occur to me until I woke up this > morning. > > Earlier in the week I was unable to perform the ultimate ignition test, that > of observing a spark at the tip of the plug while the starter was > turning.There was nobody at the dock to press the starter button and I didn't > want to try wiring some sort of bypass. All of the other ignition > troubleshooting could be done singlehanded. > > I should've used my cellphone to video the plug tip while I was in the > cockpit pushing the starter button. D'uh > > Bob M > Ox 33-1 > Jax, FL > _______________________________________________ > This List is provided by the C&C Photo Album > http://www.cncphotoalbum.com > CnC-List@cnc-list.com _______________________________________________ This List is provided by the C&C Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com