What size is this nut?

Dec 10, 2017 12 Replies

Greetings, gentlemen,



The idle adjustment screw on the car I'm currently working on mics up at



0.530" AF give or take a thou. A 13mm socket is a little too large; a
1/2" socket is a bit to small. Could this be something a bit exotic (Whitworth or similar maybe?) it's off an old Daimler so should be most definitely imperial.

¼? Whitworth?

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Tim

It's a long time since I've had my whit/bsf spanners out. I have BA in my 1/4 drive set and they are useful from time to time.

Bizarrely, a 1/4 whit is still often used, mainly on battery connections.

Thanks, guys. I'll have a word with a mate of mine who has a full set of WW spanners and try the 1/4" (and anything else he might have seeing as he's been into old British cars for 60 years!)

0.525" is the AF of a 1/4 Whit spanner.

I'm intrigued. Most Daimlers used SU carbs? But most idle adjustments on carbs use a plain 'ol screwdriver.

It seems bloody odd to me too, Dave! Looks original as well. :-/

Blyme, Dave's right!

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Well done. Better late than never.

Tim

He frequently is - except for his political views, of course.

You just can't escape someone politicising anything, lately.

Yup. Easily identified by not saying anything useful on the thread.

Think of it as a barometer for the views of wider society. Could just be the canary in the coal-mine for serious civil unrest down the road.

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