Help - MSD Ignition on a 351C, no spark
Discussion
Hello,
After attempting to rectify some dubious wiring by a previous owner I've created my own issues....
I inadvertantly connected the "tach" side of the tachometer to the +ve coil terminal. Now it won't start. I read on the MST site subsequently about requiring a filter before connecting to the negative side of the coil.......
It's got an MSD distributor, coil & Digital 6 Plus (6520) ignition module. It's using the distributor pick up instead of the crank pick up.
Anyway, I've had a look at the troubleshooting section - and have tried a spark test (shorting between the green & violet and looking for a spark at the HT lead off the coil) and have got nothing.
I've checked both the primary & secondary resistance on the coil & they look within spec based upon what's on the MST site.
The LED on the Digital 6 is flickering when the car is cranked, (I assume this is linked to the mag pick up in the dizzy) but again, it's not firing.
I checked to see if there was 12V on the +ve side of the coil with the ignition on - there isn't (I assume this is fed from the MSD) I also tried to connect a 12V supply directly from the battery to the coil and it still wouldn't start.
Obviously I pulled a spark plug & looked for a spark at first (there was none).
Hope someone can lend some assistance! Short of purchasing a new MSD Digi 6 I don't know where else to go......
Oh, it's in a '72 Gran Torino...........which is shortly going to be burnt if it keeps acting up!
Thanks
Neil
After attempting to rectify some dubious wiring by a previous owner I've created my own issues....
I inadvertantly connected the "tach" side of the tachometer to the +ve coil terminal. Now it won't start. I read on the MST site subsequently about requiring a filter before connecting to the negative side of the coil.......
It's got an MSD distributor, coil & Digital 6 Plus (6520) ignition module. It's using the distributor pick up instead of the crank pick up.
Anyway, I've had a look at the troubleshooting section - and have tried a spark test (shorting between the green & violet and looking for a spark at the HT lead off the coil) and have got nothing.
I've checked both the primary & secondary resistance on the coil & they look within spec based upon what's on the MST site.
The LED on the Digital 6 is flickering when the car is cranked, (I assume this is linked to the mag pick up in the dizzy) but again, it's not firing.
I checked to see if there was 12V on the +ve side of the coil with the ignition on - there isn't (I assume this is fed from the MSD) I also tried to connect a 12V supply directly from the battery to the coil and it still wouldn't start.
Obviously I pulled a spark plug & looked for a spark at first (there was none).
Hope someone can lend some assistance! Short of purchasing a new MSD Digi 6 I don't know where else to go......
Oh, it's in a '72 Gran Torino...........which is shortly going to be burnt if it keeps acting up!
Thanks
Neil
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