I have a 1970 pig, it runs great, original F motor but all the sudden it won’t turn off with the key. I have swapped out the ignition switch, tried disconnecting the alternator while running. The only way to get it to stop is to disconnect the coil from the cap and rotor. Does anyone have any idea why it keeps running.
Keeps running
- Thread starter wyomac
- Start date
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Not sure what kind of alternator you have. I have a gm on mine. Mine has to have a diode to keep the field from energizing the ignition. You could have the same issue maybe a bad diode in your alternator
Sorry just reread and saw you disconnected the alternator
Because you haven't spun a main bearing yet!
Seriously it sounds like if you confirmed your “new” ignition switch is good then you are back feeding power to your coil from another accessory. Don’t quote me but I believe the same wire will go from the ignition switch to a fuse to power some accessories (like windshield squirter) as well as the coil, the coil circuit should be before the fuse so unless you added something to that circuit you should be able to pull that fuse and isolate the issue to the switch side or accessory side.
bobm
WTF, WTF, WTF!!!!
My VW squareback did that!! Yanked the battery and junked it 
. What!! I only paid $300.00 for it! Plus it smelled like Mary Jane 
. What!! I only paid $300.00 for it! Plus it smelled like Mary Jane 
gonzopancho
SILVER Star
For your sake, I hope MJ had good hygiene.My VW squareback did that!! Yanked the battery and junked it
fjc-man
SILVER Star
Maybe try unplugging the ignition switch plug under the dash?