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'65 and '66 ignition switch
Posted by: Brizo ()
Date: July 06, 2018 06:48PM

What is the difference between a '65 and '66 car ignition switch? Will they interchange? Clarks lists different part numbers for them but is something I've never been into since the switches rarely fail. Thanks

Dan Brizendine,
'64 8door Greenbrier 140 PG. "In beautiful Wanamaker Indiana...with one stop light and 5 pizza shops"

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Re: '65 and '66 ignition switch
Posted by: Caraholic4life ()
Date: July 06, 2018 07:42PM

There is a difference between the 1965 and 1966 ignition switches and key cylinders that fit in them.
The first photo is representative of a 1965.(Shown with door cylinders)
The second photo is representative of a 1966.(Shown with the switch)

If you look closely at the back of the 1965 cylinder, there is what appears to be a round "Pin" protruding from the end. It matches the hole in the switch.

If you look closely at the back of the 1966 cylinder, there is what appears to be an elongated protrusion that sort of looks like a narrow oval. It matches the slot in the switch.

To the best of my knowledge, it is possible to install a 1966 switch and cylinder as a unit into a 1965 and vice versa if you need to.

I hope this is of some help.

1962 95 F.C. Van
1965 Monza Coupe
Westminster, Maryland

MID ENG enthusiast &
prior Kelmark owner.

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Re: '65 and '66 ignition switch
Posted by: sweet66monza ()
Date: July 06, 2018 10:28PM

Based on my poor memory of past research, I recall something different in the bezel also between 65-66. I had no problem finding a 65 bezel, but locating a good 66 bezel when I redid my dash took some time.

Cody Hurley
North Idaho (Post Falls)
66 Monza convertible 140/PG, loaded with factory options
66 Corsa factory turbo coupe, 3rd owner fully documented [corvaircenter.com]
66 Corsa 140 coupe 95% rust free project car FOR SALE
65 Monza coupe daily driver 110/4
66 Monza 95/PG coupe. Fix? Sell? Admire as it is?
65 Corsa coupe 140 4 speed PARTING OUT
Also 2 Ford f350 IDI diesels, four Jeep FC 170s, 66 CJ5A, 4 Rokon Trailbreakers, 3 vintage Honda 50cc minibikes, 4 Honda xr350s, and thousands of parts


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Re: '65 and '66 ignition switch
Posted by: Phil Dally ()
Date: July 07, 2018 07:53AM

What year did the key wont come out when running happen?

I thought 1966 but Gem is all original 66 and it comes out.

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Re: '65 and '66 ignition switch
Posted by: 66vairman ()
Date: July 07, 2018 08:07AM

sweet66monza Wrote:
-------------------------------------------------------
> Based on my poor memory of past research, I recall
> something different in the bezel also between
> 65-66. I had no problem finding a 65 bezel, but
> locating a good 66 bezel when I redid my dash took
> some time.

Yes I had that problem. The 66 ignition key lock stuck out more than 1/8" with Clark's repro bezel. Looked terrible.

Later I'll go measure the original against the repro. and see how much difference there is.

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Re: '65 and '66 ignition switch
Posted by: Seth Emerson ()
Date: July 07, 2018 08:28AM

The 65 bezel/assembly allowed you to remove the bezel with the key/lock cylinder still installed. In 1966, the changed the design to force you to remove the key/lock before removing the bezel. With a 65, if you do not have the ignition key, you can still spin off the bezel, push the switch assembly out, drop it out under the dash, replace the switch with another one, start the car and motor on. I think the change was a theft reduction move. It is a definite difference between 65 and 66. The whole assembly in interchangeable. In 67 other circuits were added and different pin patterns were used.

Seth Emerson

Check my new Performance Corvair Web site [www.perfvair.com]

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Re: '65 and '66 ignition switch
Posted by: Caraholic4life ()
Date: July 07, 2018 11:01AM

Phil,

If memory serves me correctly, the early model ignition switches allowed for the key to come out in the Off and Lock Positions.

The late model switches only allowed the key to be removed in the Off position as there was no longer a "Lock" position.

If you have a late model ignition cylinder and the key comes out in the "On, (or Run)" position, there is a good chance that your key is worn, or the tumblers are worn enough to allow that to happen.

If you have a new key made by code and it still comes out, the tumblers are likely the problem.

1962 95 F.C. Van
1965 Monza Coupe
Westminster, Maryland

MID ENG enthusiast &
prior Kelmark owner.

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Re: '65 and '66 ignition switch
Posted by: 66vairman ()
Date: July 11, 2018 09:26AM

Seth Emerson Wrote:
-------------------------------------------------------
> The 65 bezel/assembly allowed you to remove the
> bezel with the key/lock cylinder still installed.
> In 1966, the changed the design to force you to
> remove the key/lock before removing the bezel.
> With a 65, if you do not have the ignition key,
> you can still spin off the bezel, push the switch
> assembly out, drop it out under the dash, replace
> the switch with another one, start the car and
> motor on. I think the change was a theft reduction
> move. It is a definite difference between 65 and
> 66. The whole assembly in interchangeable. In 67
> other circuits were added and different pin
> patterns were used.

Thanks Seth - I definitely know you can't get the bezel off with the key cylinder in the switch.

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Re: '65 and '66 ignition switch
Posted by: Frank DuVal ()
Date: July 11, 2018 10:29AM

Caraholic's right, worn key will slide right out when it did not from the factory.

Usually code cutting a key will fix that.winking smiley

Frank DuVal

Fredericksburg, VA

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Re: '65 and '66 ignition switch
Posted by: WCcorsa ()
Date: July 11, 2018 01:12PM

The 1966 ignition switch bezel is taller than the 1965 bezel.

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Re: '65 and '66 ignition switch
Posted by: Brizo ()
Date: July 11, 2018 06:12PM

Thanks for all the info everyone! The issue has been resolved.

Dan Brizendine,
'64 8door Greenbrier 140 PG. "In beautiful Wanamaker Indiana...with one stop light and 5 pizza shops"

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