<VV> Cause of Bad Ignition Switch?????

J. R. Read hmlinc at sbcglobal.net
Mon May 4 22:24:19 EDT 2015

First, are you sure that the switch is indexed OK.  You should not have to 
"turn the key" to the run position.  It should spring back to the run 
position with no effort on your part.

Second, if the key is actually returned to RUN but does not run in that 
position there may be a problem with the resistance wire in the wiring 
harness.  The START position provides full 12 volts to the starter, but the 
RUN position reduces the voltage to the coil by means of the resistance 

I know nothing about electronic ignition, but I think that SOME of them want 
the full 12 volts.

Finally, check all the wiring as you could simply have a loose connection or 
a very frayed wire that just can't carry the voltage to keep it running.

Later, JR

----- Original Message ----- 
From: "Greg Shaw via VirtualVairs" <virtualvairs at corvair.org>
To: <virtualvairs at corvair.org>; <corvanatics at corvair.org>
Sent: Monday, May 04, 2015 8:59 PM
Subject: <VV> Cause of Bad Ignition Switch?????

> I am posting this on VV & Corvantics as I don't know that it is really 
> truck unique. My brother's 61 Rampside seems to have an ignition switch or 
> wiring problem. His truck suddenly wouldn't run after starting in the 
> start position. As soon as the engine started and you turned the ignition 
> switch from start to run it would quit. If you hot wired the coil it would 
> stay running. He bought another ignition switch which came with its' own 
> key. He swapped lock cylinders to keep his old key. When he turned the key 
> to start it the switch started smoking. We took the old lock cylinder out 
> and put in the one that came with it back in. It started and ran fine. 
> Problem solved we thought. We ran it long enough to adjust the carbs and 
> then shut it off to make a few last choke adjustments. When we went to 
> restart it guess what? It would not stay running. Same thing, dead once 
> off of start position. I went to hot wire the coil and in my tired state 
> put the lead on the wrong side of the coil. I think I fried his electronic 
> ignition as it will not start at all (no spark). I was looking at the 
> wiring diagram and see one for the ignition switch in start but not in 
> run. What is the source of power to the coil in the run position. What 
> should I be looking for?
> GregDearborn, MI
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