C1 turn signals

[Jim D.]

After 29 years of intermitent turn signal canceling problems, I decide to look at the problem a little closer. Here's my question. In Noland Adams book (pg.249), the ST-12 servicing guide (pg 12-2) and the 1960 Assembly Manual (sec.12 pg.10) they show a "cam" part. number 5943818. It attaches to the back of the steering hub with 2 screws and has an arm that sticks out that contacts the pivoting cancel arms and returns the switch to the neutral position. On my car, the hub has 2 "ears" that stick out and 1 has a pin in it , the other is missing. The holes that the screws are supposed to go into to attach the "cam" are not threaded all the way through (they are tapped from the front side of the hub for using a wheel puller) so I don't believe there ever was a "cam" installed on this car.
I've been told by some parts vendors that passenger cars had the "cam" set-up and Corvettes used the pin set-up like what I have. Why do all the Corvette books show the "cam"?

I've looked in several parts catalogs and it seems that every piece of the turn signal assembly is available except nobody even lists this "cam" for sale.
I sure would like to get a definitive answer on this.
Any thoughts or ideas are greatly appreciated.
Thanks, Jim

[Rob Dame]

Re: C1 turn signals

My 56 has the two pins in the hub. You may be able to use a roll pin from your local hardware store to replace the pin that is MIA. Just be sure it is the same lenth as the other. When you reassemble the hub be sure the wheels are straight ahead then install the hub so that the pins are vertical on the left hand side ( 8 & 10 oclock). These pins hit the ears on the switch when the wheel returns and cancels the directionals.
Rob

[Larry P.]

[Jim D.]

Re: C1 turn signals

Rob and Larry,

Thanks for the info. Sounds like we all have the exact same set-up. I'll just replace the missing pin, clean/lube things up a little and should be good as new. I just can't figure out why all the reference manuals I listed have the wrong info. in them. I'm off to the hardware store. Thanks again.
Jim