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mcooper

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Discussion starter · #1 ·
Hi Folks - '69 302 coupe. Recently changed plugs, wires, points, condenser, rotor and distributor cap. This was only because the plugs needed to be changed due to running rich and I figured I would just do a tune up. All ran fine for a few days and then died. I changed the cap, rotor and condenser again along with the coil just in case. Still dead (car will crank but not fire). Unplug the wire from the coil to the center of the cap. I get spark from the coil to ground but no spark at the plugs. I bypassed the red wire to the coil and the wire to the starter solenoid to make sure the problem did not lie there. Still the same result. Points are sparking w/ cap removed and distributor turning. After the tune up I did notice that the turn signals in both directions would blink erratically when the car was running but blinked fine when the engine was off. Any ideas why I would have spark coming to the distributor but not to the plugs? Thanks!
 
As awhtx is eluding, if you have a good strong coil spark to ground, then there is a problem in the secondary side of this equation. The cap, the rotor, and the wires. Also, check the cap electrode contact point.
Good luck.....
 
Discussion starter · #6 ·
Thanks everyone. Back at it today. All of the grounds seem to be ok. I did find that with the coil unplugged I have continuity from the red wire that would go to the coil to ground. On a 2K ohm scale my meter reads 33 with the key off. Key in accessory I get a 20 and with the key in the start position I read 12. I have the negative off of the battery. Any thoughts? Thanks again for everyone's help!!!
 
What are you trying to accomplish with your "tests"? If you have spark at the end of the coil wire where it enters the distributor, but no spark at the plugs then the rotor and cap aren't "distributing" properly. Either the rotor isn't turning, the rotor button isn't getting spark to the rotor or the rotor isn't getting spark to each of the 8 contacts.
 
Discussion starter · #8 ·
Bartl, I agree. New cap, new rotor and rotor turns when cranking engine. I was thinking maybe a there is some odd grounding situation causing no spark once coil wire is on cap instead of straight to ground.
 
If you have spark at the end of the coil wire, but not at the 8 towers on the cap then the problem is between the center tower and 8 plug towers. Either the spark is shorting down through the rotor to the distributor shaft (or somewhere else to ground inside the cap) or is vastly out of phase.
 
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