Ignition and Light Switch problems

for those with Series MM sidevalve cars produced between September 1948 and February 1953
gtt1951
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Joined: Thu Oct 04, 2012 5:01 pm
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Ignition and Light Switch problems

Postby gtt1951 » Sun Jun 21, 2020 12:27 pm

I'm getting a bit downhearted with my Low-light project as I keep finding more things that were botched.
The ignition switch wasn't bolted in and I found out after a while, why not - it needed to be turned upside-down to work the key at times!
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It can't be mounted upside down as the "lump" on the switch doesn't then marry up with the mounting plate.
After oiling it, I seem to have it working but, at times, need to turn the key to the left, first, before it will move to the right.
After refitting the ignition switch, the lights failed - it turned out that the wires to the rear of the light switch weren't connected too well and the blue/red one had fallen out.

I decided to properly reconnect everything and the light switch panel bezel came off very easily. Having reconnected all the switch wiring, the chrome bezel won't go back on the switch, except for about a quarter turn - the wrong bezel may have been fitted, as the threads don't look that damaged.
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IMG_20200620_153250.jpg
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Do I bite the bullet and just get a replacement switch, or does someone know what the thread is so that I can see if I have a die to tidy it up?

George.
Image
'50 Low-light with 918 Side-valve engine,
'51 High-light with Side-valve 918 engine,
'55 4-dr with 803 engine,
'56 Traveller with 1098 engine.

seriesmm_1
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Re: Ignition and Light Switch problems

Postby seriesmm_1 » Sun Jun 21, 2020 11:48 pm

Try M10 fine(1.0mm pitch/25tpi)
Regards
BrianR


gtt1951
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Posts: 901
Joined: Thu Oct 04, 2012 5:01 pm
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Re: Ignition and Light Switch problems

Postby gtt1951 » Mon Jun 22, 2020 5:08 pm

Thank you Brian, just need to source one now.
George.

gtt1951
Minor Addict
Posts: 901
Joined: Thu Oct 04, 2012 5:01 pm
MMOC Member: Yes

Re: Ignition and Light Switch problems

Postby gtt1951 » Wed Jul 01, 2020 10:41 am

Got my M10 fine die yesterday and tried it on the switch - not a lot of room with the die held in a holder, but managed to get a half turn, which was enough to start off the lock ring.
Light switch now fitted back in the dash panel - all good thanks.
George.


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