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| Odd spark issue https://slantsix.org/forum/viewtopic.php?t=40766 |
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| Author: | Force Fed Mopar [ Thu Jun 24, 2010 7:02 am ] |
| Post subject: | Odd spark issue |
The S6 that is in my '80 D100, skips like a dead miss if the spark plug wires are pushed all the way on like they are supposed to be, but smooths out if I pull them back from the plug just a bit. I guess it is making the spark jump and get hotter maybe? Anybody run into this before? IIRC it has Autolite 64's in it. I have swapped distributors, cap, rotor, plug wires, coils, ignition modules, and wiring harnesses trying to find this skip. I have adjusted the valves to spec (and double and triple checked it), and done a compression check, which came up good (~150psi all cylinders). It just so happened that one day I set all the plug wires slightly loose on the plugs so I could start it up and pull the off one by one and find what cylinders weren't firing properly, and voila, the miss was gone. The engine looks to be a fresh rebuild, but I have no idea what it is or was originally. It has adj rockers, it is the newer head I think (spark plugs are not recessed in tubes), has a 2bbl intake. Block is well grounded to the body. Anybody ever run into this before? Or have any insight? |
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| Author: | KBB_of_TMC [ Thu Jun 24, 2010 9:47 am ] |
| Post subject: | |
Various add-on gizmos over the years used an extra gap to help with marginal systems. I'd triple check the coil polarity first. |
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| Author: | Force Fed Mopar [ Thu Jun 24, 2010 11:05 pm ] |
| Post subject: | |
Alright, I'll check that. IIRC it's off a turbo dodge, and I checked it w/ a coil checker and it was outputting 35-40k volts. |
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