1971 C3 sometimes start then no start

[darkstar]

I have a 1971 C3, 350 CI, HP unknown, automatic tranny that starts then you can shut it off and it will not restart. That is no crank/engine turnover. Wait a few minutes and it will restart. The starter has been replaced as I thought it was the solenoid but the condition still exists. All you can hear is a slight thunk. Runs fine otherwise. Any suggestions as I hate to get stranded because of the problem. HELP PLEASE

[c4c5specialist]

HI there,

The first thing I would suggest is to check to see if there is voltage to the starter.

This would be to use a test light to determine what you have.

If I was guessing, I would think the neutral safety switch, but the best way to do this is taking a test light, and have one person try to crank the engine while you test the voltage into the starter.

Allthebest, c4c5

[Tallman]

Agree with the normal easy tests. I have a '71 that had a similar problem. Took many hours to resolve. Turns out the center console had shifted backwards due to years of use and caused interference with the neutral switch. Once I replaced the console and properly aligned all the parts so the switch wasn't being interfered with, no more problems.

[darkstar]

Thanks to both of you. Will let you know the results.

[darkstar]

Still into the problem. Found some broken bolts on the starter along with some wiring problems. I am assisting to bring her back to 100%. Will keep you posted.