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Re: Cooper s air filter bolt

Posted: Wed Mar 13, 2019 10:24 pm
by Peter Laidler
Take the point entirely and that's my job exactly as you say, for tomorrow morning Beattie. Can't believe that I'd missed that it was 1/4UNC thread. Staring me in the face.

Re: Cooper s air filter bolt

Posted: Wed Mar 13, 2019 11:26 pm
by dklawson
Peter, yes, It was only 1/4 UNC.

My car only had 1 of 2 wingnuts when I bought it so I had to do something. I made 2 so they would look alike in the engine bay.

If I had original parts needing saving I would use a HeliCoil (ReCoil... whatever brand you like) for the thread repair. Though HeliCoils are not the best in all situations this is a place they would be ideal. The pilot drill is 6.7mm (17/64") and the OD of the installed insert will be close to 5/16". That leaves the original wingnut a reasonable wall thickness compared to a lot of other thread insert types.

Re: Cooper s air filter bolt

Posted: Thu Mar 14, 2019 8:54 am
by UHR850
:roll: I was told the other day the short ones are the same on the Morris Minor :?:

Kees.

Re: Cooper s air filter bolt

Posted: Thu Mar 14, 2019 2:23 pm
by IslandBlue
For a non-original but perhaps more stylish solution what about these?

http://www.dsnclassics.co.uk/retrosport ... etrosport/

Available in long or short versions and a selection of colours and finishes.

I found these perfectly acceptable, albeit not cheap, and they're made in England!

Re: Cooper s air filter bolt

Posted: Thu Mar 14, 2019 10:06 pm
by 360gts
Highnumbers wrote:I'm blown away (still) that nobody remakes this part in any big quantity. Think of all the other Mini-specific parts that are remade, and nobody remakes a wing nut for an air filter?

(Rich/MiniSpares, is there a particular reason for this? I'd imagine you would sell quite a lot of these.)
Actually, these are being reproduced...on E Bay....30 pounds a set.
https://www.ebay.co.uk/itm/Classic-Mini ... SwEeFU9dst

Re: Cooper s air filter bolt

Posted: Thu Mar 14, 2019 10:26 pm
by timmy201
The reproduction ones aren't the right shape.

Nick has them listed. I bought a pair a few years ago
http://www.min-e-bitz.com//index.php?ma ... cts_id=632

The one on the left is the right type for early cars
Image

Re: Cooper s air filter bolt

Posted: Fri Mar 15, 2019 2:13 pm
by nick rogers
IMG_6822.jpg
Thanks, Tim. I still have some.