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'70 Midget ignition switch

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'70 Midget ignition switch #1 This topic is about my 1970 MG Midget
jvrob Jack Roberts Neenah, WI, USA Sign in to contact 1970 MG Midget "Wally"	Topic Creator (OP) Apr 18, 2024 04:54 PM Joined 8 years ago 28 Posts

I originally posted this a little over a year ago with no replies - try again.

Trying to find a replacement ignition switch, just the electrical contact part. The original is a Lucas model #157SA, P/N 39387B. Haven't found a direct replacement except on ebay for an outrageous price. There are a number of switches listed for Spits and TR6's that look right but the numbers don't match. There's also a 157SA for a Reliant Robin & Rialto. Has anyone found a supplier or know if the ones listed will work?

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Re: '70 Midget ignition switch #2
Mtn Sprite Layne M Santa Cruz, CA, USA Sign in to contact 1969 Austin-Healey Sprite	Apr 19, 2024 08:37 AM Top Contributor Joined 5 years ago 2,706 Posts

I thinks this is what you are talking about. Not sure.

It looks like the switch itself 157SA is used in a bunch of different applications with the pigtail being the difference and specified by the second set of numbers.

Have you checked that out to see if it’s the case?

I see a aftermarket 157SA for 15 euro and up to $100+ at Welsh for just the switch.

Maybe the switch will work and use your pigtail?

Also, have you called the wreckers and talked to them? There are lots of complete assemblies out there for sure.

https://classicgarage.com/mgbmgtmiigsw.html

https://www.angclassiccarparts.co.uk/products/reliant/reliant-robin-regal-kitten-rebel/electrical/steering-column-ignition-lock-switch-robin-mk2-3-rialto-se

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Re: '70 Midget ignition switch #3
Mtn Sprite Layne M Santa Cruz, CA, USA Sign in to contact 1969 Austin-Healey Sprite	Apr 21, 2024 09:31 AM Top Contributor Joined 5 years ago 2,706 Posts

Jack, Do you think the above post could be the case?

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Re: '70 Midget ignition switch #4
1974MGMidget Jack Orkin Grayson, GA, USA Sign in to contact 1974 MG Midget MkIII	Apr 21, 2024 10:11 AM Top Contributor Joined 17 years ago 2,810 Posts

(different Jack) I'm not at home so can't look at my info but I think the switch only is available at Moss. The problem is the pigtail wire colors and plug are wrong. Simply figure out where the new wires go and put them in the old plug, or splice them to the correct wire. IIRC...

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Re: '70 Midget ignition switch #5
jvrob Jack Roberts Neenah, WI, USA Sign in to contact 1970 MG Midget "Wally"	Topic Creator (OP) Apr 21, 2024 10:55 AM Joined 8 years ago 28 Posts

Layne & Jack, thanks for the replies.
I've looked at ANG and they seem to have lots of good stuff - but they don't ship to the US.
The Moss 542-077, listed for Midgets doesn't look right. Moss 263-655 looks right but is NA and Moss DAC1422JAG looks right but is $190.
I didn't know about Classic Garage and just ordered LU-39921. Changing the wiring is no problem. I'll post about the fit and function when it arrives. Thanks

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Re: '70 Midget ignition switch #6
1974MGMidget Jack Orkin Grayson, GA, USA Sign in to contact 1974 MG Midget MkIII	Apr 21, 2024 02:36 PM Top Contributor Joined 17 years ago 2,810 Posts

If the wire colors don't match, suggest you change one at a time to keep straight what goes where.

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