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key switch gear [message #362129] Sun, 31 January 2021 18:01
skip2 is currently offline  skip2   United States
Messages: 544
Registered: September 2011
Location: Winter Haven,FL (center o...
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Just posting this to hopefully head off someone else having a problem and not be as lucky as me and have it happen in the driveway. For the last 2 weeks my ignition switch would not spring back on it's on after letting up when the motor started. I just didn't think much about it, didn't realize the weak point that was about to let go. After I got it apart I found there is actually a round gear on the end of the key tumbler shaft that meshes into a flat gear on the end of the shaft that goes down to the actual switch down the shaft. That gear looks like it is made out of the same material as a tranny governer gear. It finally lost enough teeth it wouldn't move the rod to the switch. I found a new one and it looks like it is made out of a different material like the tranny gear is. I say all this because I look back how many warnings have been given to me and I paid later for not trying to figure out what the machine or my body was trying to tell me, Many of the old and not so old crumudgeons in this group can say there their body was trying to tell them something and find themselves in the cat lab or surgery soon after. Changing this gear isn't hard just have a manual, take lots of pictures, and a couple of special tools. I did move the rod up and down manually and it will start the motor fine and spring back on it's own, I had changed the actual switch a few years ago so I didn't change it. When looking for this look for parts for a GM auto in the same years with tilt wheel and the plastic gear has 6 teeth, there are some with 5. Just trying to help the next person from being stranded somewhere it's a cheap fix unless you have to be towed.
Skip Hartline


74 Canyon Lands, FiTech, 3.7 FD LSD, Manny Tranny, Springfield Distributor, 2001 Chevy Tracker Ragtop Towd
 
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