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Old 09-11-2015, 02:40 PM   #19
chevyguyase
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Join Date: Aug 2015
Location: st charles missouri
Posts: 219
Re: 1959 gmc ignition, starting problem

Mog797, quite a score, you lucky dog. Back to the distributor. Did you score a dwell meter in those jewels? If you did & lucky enough to have the owners manual, follow the point resistance test in the manual. Make sure the rotor is turning when you crank the engine. Bump the engine until the points are on the highest point of the cam lobe. adjust it .017 -.019 with a very clean feeler gauge. with points still open remove the condenser attachment screw & insulate the condenser from grounding. with an ohm meter or battery powered continuity tester hook one end to the distributor housing and the other to the disconnected neg. _ primary coil wire. you should have an open circuit (no continuity) if you have continuity the circuit is shorted to ground. check the distributor pass through or the points itself since we have eliminated a shorted condenser by removing its ground. A coil is charged with voltage and fires when the ground is removed (open points) if the circuit is shorted to ground the coil field does not collapse and you have no spark. I'll watch this thread, if you need more help.
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