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914World.com _ 914World Garage _ how to identify a 1974 headlight switch

Posted by: brant Jan 13 2020, 12:09 PM

a guy is selling a bunch of misc. parts.
a couple of headlight switches are in his for sale items.

I love the idea of having a spare switch for my 74

does anyone know how many pins, or how to identify which one fits a 74?

thanks in advance
brant

Posted by: JeffBowlsby Jan 13 2020, 12:51 PM

70-73: 10 pin
74-76: 11 pin

Posted by: brant Jan 13 2020, 01:22 PM

Thank you a ton

Posted by: sixnotfour Jan 13 2020, 01:45 PM

Slits says,
My suggestion is to use a "known good" used one.

There are two ...

Early is 10 pin

Later is 11 pin

Which do you need?

Posted by: brant Jan 13 2020, 03:44 PM

well I'm taking a gamble... as the seller didn't test it
but the price was right... and its a back up to my street car (11pin)
going to get it and put it in my travel spares.
thank you all!!!!!!

Posted by: bdstone914 Jan 13 2020, 05:41 PM

@http://www.914world.com/bbs2/index.php?showuser=47
date='Jan 13 2020, 03:44 PM' post='2777066']
well I'm taking a gamble... as the seller didn't test it
but the price was right... and its a back up to my street car (11pin)
going to get it and put it in my travel spares.
thank you all!!!!!!
[/quote]

The early is an aluminum case. The later like you need are zinc and fuller finish.

Posted by: sixnotfour Jan 13 2020, 08:11 PM

[quote name='bdstone914' date='Jan 13 2020, 04:41 PM' post='2777087']
@http://www.914world.com/bbs2/index.php?showuser=47
date='Jan 13 2020, 03:44 PM' post='2777066']
well I'm taking a gamble... as the seller didn't test it
but the price was right... and its a back up to my street car (11pin)
going to get it and put it in my travel spares.
thank you all!!!!!!
[/quote]

The early is an aluminum case. The later like you need are zinc and fuller finish.
[/quote]
first.gif

Posted by: brant Jan 13 2020, 09:09 PM

Nice. That’s a great tip!

Posted by: Krieger Jan 14 2020, 12:28 AM

How can you test a used switch before you install?

Posted by: JeffBowlsby Jan 14 2020, 02:22 PM

Just test the continuity or resistance of each circuit, as per the attached diagram.


Attached File(s)
Attached File  DashSwitches.pdf ( 127.27k ) Number of downloads: 12

Posted by: dr914@autoatlanta.com Jan 14 2020, 02:45 PM

the 74-76 is fat the 70-73 skinny

QUOTE(brant @ Jan 13 2020, 11:09 AM) *

a guy is selling a bunch of misc. parts.
a couple of headlight switches are in his for sale items.

I love the idea of having a spare switch for my 74

does anyone know how many pins, or how to identify which one fits a 74?

thanks in advance
brant


Posted by: Krieger Jan 14 2020, 03:00 PM

QUOTE(JeffBowlsby @ Jan 14 2020, 12:22 PM) *

Just test the continuity or resistance of each circuit, as per the attached diagram.


Thanks Jeff!

Posted by: porschetub Jan 14 2020, 10:06 PM

Mine fissed out when the dimmer went south so got a spare from a vendor on here and got later one (11pin),bridged out the dimmer cause running LED strips in my gauges ...don't need no shi#ty dimmer,my old switch had other issues too so worth doing.
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