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Ignition switch terminal markings
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Ghostdriver



Joined: 09 Dec 2015
Posts: 3
PostPosted: Wed Dec 09, 2015 9:32 pm    Post subject: Ignition switch terminal markings Reply with quote
Hello folks,
Wonder if anyone can help. I have a problem with my current ignition switch and have bought a new one, problem is the terminal codes on the back are all different on both.
The old one maybe a Bosch but can't be certain, the five pins have the following markings by them, BAT30, R/GA, 54, 15 and 50.

The new switch hAs 1,2,3 & 4 and SA.

My question is can I use this new switch and if so which of the above codes corresponds with the new switch codes ??

Help appreciated.
Cheers
Craig
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47Jag



Joined: 26 Jun 2008
Posts: 1480
Location: Bothwell, Scotland
PostPosted: Wed Dec 09, 2015 10:26 pm    Post subject: Reply with quote
Craig,

I can't help you with the new switch but here is the Bosch terminal designating numbers:- http://www.autoelectricsupplies.co.uk/cms/files/bosch_terminal_designations.pdf

Wasn't there any paperwork with the new switch?

Art
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Ghostdriver



Joined: 09 Dec 2015
Posts: 3
PostPosted: Wed Dec 09, 2015 10:52 pm    Post subject: Reply with quote
Thanks Art but I already know what the Bosch markings are for because that's what's been removed, I need to know what the new switch markings are, I think it's a Lucas replacement style, common on many old cars, but I need to know what wires go to 1,2,3 &4 terminals

Cheers
Craig

PS before anyone asks, my car is a 1949 ford prefect, BUT, has an Essex V6 so that don't really help either ha ha!
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47Jag



Joined: 26 Jun 2008
Posts: 1480
Location: Bothwell, Scotland
PostPosted: Wed Dec 09, 2015 11:34 pm    Post subject: Reply with quote
Craig,

I bought a generic switch so that I could move my old Jag about. I'll have a look tomorrow and report back.

Art
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traction39



Joined: 19 May 2009
Posts: 399
Location: South Wales
PostPosted: Thu Dec 10, 2015 12:05 pm    Post subject: Reply with quote
Any help?

http://www.classic-car-accessories.co.uk/acatalog/info%5fCLS076%2ehtml

Has the assignments under the picture. SA is marked on the switch too, although not mentioned in the dialogue.
_________________
Alistair

Citroen Light 15 1953, "12" 1939,
Riley 9 Special 1932
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D4B



Joined: 28 Dec 2010
Posts: 2083
Location: Hampshire UK
PostPosted: Thu Dec 10, 2015 1:31 pm    Post subject: Reply with quote
Can you find it here perhaps?

https://www.google.co.uk/search?q=lucas+ignition+switch+wiring&biw=1536&bih=698&source=lnms&tbm=isch&sa=X&ved=0ahUKEwjpi_-bpdHJAhVG2xoKHWeOBLcQ_AUIBigB&dpr=1.25#imgrc=_
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Ghostdriver



Joined: 09 Dec 2015
Posts: 3
PostPosted: Thu Dec 10, 2015 2:40 pm    Post subject: Reply with quote
Cool, thanks for all your help guys, I will sort through and report back if I get things sorted.

cheers
Craig
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47Jag



Joined: 26 Jun 2008
Posts: 1480
Location: Bothwell, Scotland
PostPosted: Thu Dec 10, 2015 11:57 pm    Post subject: Reply with quote
Craig,

The switch I have has proper markings IE STA for starter, BAT for battery feed etc. so I'm not able to help you.

Art
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