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MG parts spares and accessories are available for MG T Series (TA, MG TB, MG TC, MG TD, MG TF), Magnette, MGA, Twin cam, MGB, MGBGT, MGC, MGC GT, MG Midget, Sprite and other MG models from British car spares company LBCarCo.

MG TD TF 1500 - Micky Mouse Ears

I have recently acquired the brass wing-nut (commonly known as MM Ears since it is really out of proportion for the job) which locks down the air cleaner on the TD. This finally replaces the small steel one which has worked well for a generation or two.

Not unsurprisingly the thread of the brass nut has stripped.

Can anyone confirm what thread is actually required.

With this I can consider whether to helicoil if this size exists. Or would the better approach be to drill out and sweat in a piece of brass rod, drill and tap.

Regards

IanB
Ian Bowers

i would heli-coil it. regards, tom
tom peterson

Good day Ian:

The air cleaner stud, BMC Part # 168390 (TD and TD2); or Part # 168439 (TD Mk II) is threaded 6mm x 1mm, at both ends. Therefore; the wing nut, BMC # WGN 012, is tapped in the same manner.

You are quite correct in noting the disproportionate size of the wing nut, especially in relationship to the function it performs.

I believe metric heli-coil inserts are available, but the stud will govern that factor, ie: if it is still 6mm x 1mm.

Cheers then; respectfully:
Jack Emdall, TD3191, New Westminster, British Columbia, Canada



kernow

Thanks, Jack, that is most helpful

Metric nuts are easy to find here, as well as the metric helicoils, so I will get on down to the tool shop and confirm the thread and get on with the job.

IanB
Ian Bowers

ian, i see restoration supply here in the states sells mickey mouse ear wing nuts that are not bored. you bore and tap to your own specifications. page 43 of their online catalog. regards, tom


http://www.restorationstuff.com
tom peterson

ian, i see restoration supply here in the states sells mickey mouse ear wing nuts that are not bored. you bore and tap to your own specifications. page 43 of their online catalog. regards, tom
http://www.restorationstuff.co


Tom, Just a comment on your recommendation of Restoration Stuff Co. I checked out their site and was so amazed of the amount of special nuts, bolts and fittings they have, that I was on their site for about 20 minutes! I think everyone should bookmark their site. Thanks for posting the site address! PJ
Paul J

Best read I have had for some time!

Many thanks for the link

IanB
Ian Bowers

a bonus to this site is these folks have an EXCELLENT reputation for service. they were burned out in the california fires a couple years back, they lost a couple of their own vintage cars too...but still kept servicing orders...amazing. good, good people. i am not affiliated in any way except as a customer. regards, tom
tom peterson

ian

http://www.uni-thread.com/

uni thread do metric fine heli coil kits. expensive for one but you could sell the kit on on ebay. double check its not 6mm x0.75 pitch. if you send Dave the thread, he will match it up for you.

Ian
ian ailes

So Ian - which Mickey Mouse nut did you settle upon as closest to original?

My mother worked for Lockheed on the P-38, and also called them Mickey Mouse nuts.

Tom
t lange

Sorry, Ian, I mis-read the post. I now see that you have an original.

Tom
t lange

This thread was discussed between 23/07/2011 and 28/07/2011

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