ignition switch

[Daniel Y.]

Re: ignition switch

Gary,

I can understand your theory. I wish they were the same. you would think they would be the same. but they aren't. if you can get Pete Lindahl on the phone he can clear things up. he's gone through a bunch of them and given classes on differences. he's a key and lock specialist.

Good Luck,

Dan

[Joe R.]

Re: ignition switch

Here's a picture of the two switches. This should give you the difference in the two switches right away. At least the physical difference.

JR

[Gary B.]

Re: ignition switch

JR,

The switch on the right is the incorrect version of the 686 switch. That switch will not function correctly during judging. The original 686 switch had two brass pins, the same as the 673 switch in your photo on the left.

Gary

[Joe R.]

Re: ignition switch

Gary,

Where did you get your information? I have several 686 switches removed from what I thought was original instrument clusters and none of the 686 switches have two pins including the reproductions.

JR

[Bob W.]

Re: ignition switch

Is there anyone who restores this switches?

Bob

[Gary B.]

Re: ignition switch

JR,

Without the 2nd pin the push-in to turn to ACC feature will not work. Yes, there are lot of 1-pin 686s and repros out there, and the production 2-pin version is very hard to find, so as switches wear out they become replaced with 1-pin versions. Check the DB archives for more info/confirmation.

Gary

[Peter L.]

Re: ignition switch

Joe - The Delco-Remy p/n 1116686 (embossed "686") ignition switch that was in & still is in our 1967 SN #1476 that we purchased in 1983 had the 2 brass push pins in the lock cylinder bore. Pete

[Joe R.]

Re: ignition switch

Pete, Does the Tumbler cylinder face plate have one or two holes or is the hole offset?


Thanks, Joe

[Gary B.]

Re: ignition switch

JR,

Original face plates have one hole. That 2nd brass pin in the 66 and 67 lock switches is never depressed via a paper clip in the hole as is done when removing the lock core. The paper clip only depresses the 1st brass pin.

Gary

[Joe R.]

Re: ignition switch

JR,

Original face plates have one hole. That 2nd brass pin in the 66 and 67 lock switches is never depressed via a paper clip in the hole as is done when removing the lock core. The paper clip only depresses the 1st brass pin.

Gary

Sure, then why was the second pin added along with the second hole in the face plate? That would not be used for a replacement for earlier switches because earlier switches don't have the blade slot. Another GM vehicle maybe?
Show us some pictures of your research.

Thanks, JR

[Gary B.]

Re: ignition switch

JR,

Yes, the existence of a 2nd hole in the face plate always indicates that the same lock cylinder was used for another GM vehicle.

The 2nd pin on original 673 and 686 switches has nothing to do with the 2nd hole that sometimes exists on face plates of lock cores intended for different applications.

Gary

[Joe L.]

Re: ignition switch

JR,

Yes, the existence of a 2nd hole in the face plate always indicates that the same lock cylinder was used for another GM vehicle.

The 2nd pin on original 673 and 686 switches has nothing to do with the 2nd hole that sometimes exists on face plates of lock cores intended for different applications.

Gary

Gary------

The ignition lock cylinder used for 1967 Corvettes was the same one used for virtually all other 1967 vehicles across the entire GM line.

The SERVICE lock cylinder, GM #7033216 (uncoded), had only a single hole in the face plate. It's possible that this was a SERVICE piece and not the same as used in PRODUCTION.

[Daniel Y.]

Re: ignition switch

hmmmm - I bought a 67 Chevelle switch and it was the same except not light bulb holder. other wise it worked identical

[Gary B.]

Re: ignition switch

Dan,

What's the embossed # on the Chevelle switch? I like your idea of bonding a cannibalized light fixture if that's a way to create a correct functioning pseudo-686 switch.

Gary

[Joe L.]

Re: ignition switch

Dan,

What's the embossed # on the Chevelle switch? I like your idea of bonding a cannibalized light fixture if that's a way to create a correct functioning pseudo-686 switch.

Gary

Gary-----


The 1967 Chevelle switch was GM #1116685. This was a "dual brass pin" switch.