MG Sports Cars

engine swaps and other performance upgrades, plus "factory" and Costello V8s

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MGB-SBC-Jimmy
Jimmy Geske

(35 posts)

Registered:
01/27/2011 08:02AM

Main British Car:
78 mgb headlight switch wiring question........
Posted by: MGB-SBC-Jimmy
Date: March 30, 2011 06:21AM

Can someone decifer the three wires on the original headlight switch? Three wires: Blue, Brown, and Red (with green stripe).
I assume one would be power coming into the switch while another one would be for tail and parking, while the last one would be to send power to the headlights, but which is which? Thanks very much for any and all input!!


BlownMGB-V8
Jim Blackwood
9406 Gunpowder Rd., Florence, KY 41042
(6470 posts)

Registered:
10/23/2007 12:59PM

Main British Car:
1971 MGB Blown,Injected,Intercooled Buick 340/AA80E/JagIRS

authors avatar
Re: 78 mgb headlight switch wiring question........
Posted by: BlownMGB-V8
Date: March 30, 2011 09:21AM

Brown would be unswitched power, Blue is headlight wiring and would go to the dimmer switch, and red would be for parking lights and would feed the fuses for the marker lights, if memory serves.

JB


MGB-SBC-Jimmy
Jimmy Geske

(35 posts)

Registered:
01/27/2011 08:02AM

Main British Car:
Re: 78 mgb headlight switch wiring question........
Posted by: MGB-SBC-Jimmy
Date: March 30, 2011 10:22AM

Thank you, thank you, thank you!!!
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