Ignition Switch Problems

[zombie437]

Ignition left on run with motor off with radio playing, wouldnt turn over with key when I returned, so I jumped solonoid it turned over and had spark at the coil wire and #1 hole but woudnt start checked fuel nothing then run jumper wire from pos side of coil and pos on battery wouldnt start with ignition switch but would start by jumping solonoid, got her home checked fuse one was blown now power at pos side of coil when ignition is in run position, still wont turn over with key so I replaced ignition switch. Now this is the wierd thing with new switch and before installing tumbler I tried turning it over with small flat head screw driver nothing then switched to Acc and the radio wouldplay so I thought lets put tumbler in then after install Acc wouldnt work and still wouldnt turn over....I have no idea what this might be Please Help any ideas Thks

 

[DirtDonk]

Which fuse was blown.
Check to see if you are getting any power to the Red w/blue wire at the solenoid/relay.
You may have overheated your resistor wire and it's not passing enough current to get any kind of a real good spark from the coil.
Have you tried starting it with the jumper wire to the coil again? What's it doing now?

Also, do a search for a thread, just in the past two days or so, where someone did just the same thing and see what solved his problem.

Paul

 

[TonyC]

I had a similar problem with my '66. The ignition would not turn off, the engine kept running. After changing the ignition switch and entire ignition, it turned out to be a short caused by the main power wire which had heated up due to a short in the solonoid, I think. I found the wire had melted to where about a 2" piece was bare and caused a melting of the ignition wire keeping it live no matter the position of the ignition. If this problem continues with your rig, look at the bundled wires along the driver's side under the hood, and feel along, spread the wires, looking for a similar situation as mine.

 

[zombie437]

Will check for bare wire and also wire at solonoid. Just cant figure out why the Acc side of ignition will allow radio to fuction when switched to Acc with screw driver and then when install ignition tumbler it doesnt fuction, I have even reinstalled old switch same thing occurs, Must have coffee now and start after those two things you guys suggested Thks.