Gear stick thread

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Zaphod
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Gear stick thread

Post by Zaphod »

Just tried to fit a new knob on the gear stick and now I notice someone has made a real mess of the threads, should it be M10? or is it something else (guessing it is a metric thread and not UNF!). I think it will be fine once I have run a die down it and re-cut the damaged section
Of all the things I have lost I think I miss my mind the most...

1952 MG TD
1959 Austin Healey Sprite
1975 MG Midget 1500
1990 Lotus Excel
2007 BMW E92 320d M Sport

Pete Boole
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Re: Gear stick thread

Post by Pete Boole »

M12 x 1.25 on the spare I have.

Pete

Marten
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Re: Gear stick thread

Post by Marten »

Zaphod wrote:
Fri Jan 14, 2022 20:19
Just tried to fit a new knob on the gear stick and now I notice someone has made a real mess of the threads, should it be M10? or is it something else (guessing it is a metric thread and not UNF!). I think it will be fine once I have run a die down it and re-cut the damaged section
Invest in a threadgage.
Image
http://www.m-gineering.nl/draad3.jpg
failing that, grab a bolt which you think is the same and try if you can mate up the threads without rocking

Image
http://www.m-gineering.nl/draad4.jpg
close, but no cigar: 1mm pitch does not equal 24 tpi
Last edited by Marten on Sat Jan 15, 2022 10:26, edited 1 time in total.

Pete Boole
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Re: Gear stick thread

Post by Pete Boole »

Can't see the pictures Marten.

Pete

Marten
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Re: Gear stick thread

Post by Marten »

Pete Boole wrote:
Fri Jan 14, 2022 23:02
Can't see the pictures Marten.

Pete
sorry, but don't think it's me. They show up here on 2 separate devices. Maybe your browser can't cope with a http instead of a https adres?

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ChrisJ
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Re: Gear stick thread

Post by ChrisJ »

I think it might be the forum software as I can't see the images either, but if I copy the image link and paste into a new tab (same browser) I can.

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MetBlue
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Re: Gear stick thread

Post by MetBlue »

Images are not showing for me either.
Watch the thread though. 1.25 pitch on M12 is a fine thread. Most dies will be M12 X 1.75 mm.
Tony
Last edited by MetBlue on Sat Jan 15, 2022 11:46, edited 1 time in total.
What goes together.... Must come apart.

Marten
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Re: Gear stick thread

Post by Marten »

ChrisJ wrote:
Sat Jan 15, 2022 09:53
I think it might be the forum software as I can't see the images either, but if I copy the image link and paste into a new tab (same browser) I can.
I get them on FF and my Iphone, but not with Edge. I've added the liinks to the pictures

Hawaiis0
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Re: Gear stick thread

Post by Hawaiis0 »

Marten wrote:
Sat Jan 15, 2022 09:13
Pete Boole wrote:
Fri Jan 14, 2022 23:02
Can't see the pictures Marten.

Pete
sorry, but don't think it's me. They show up here on 2 separate devices. Maybe your browser can't cope with a http instead of a https adres?
Marten
You are viewing the images as cache items on your computer. External viewers cant see them unless hosted by a third party photo site.

The hyper link to the web site does take the viewer to the image site though.

Stu

Marten
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Re: Gear stick thread

Post by Marten »

Hawaiis0 wrote:
Sat Jan 15, 2022 11:30

The hyper link to the web site does take the viewer to the image site though.

Stu
Which is the line from the post with Image removed. It refers to the website, not to my cache. It must be how your browser treats the link to the image embedded in the forumpost

Zaphod
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Re: Gear stick thread

Post by Zaphod »

Marten wrote:
Fri Jan 14, 2022 22:42
Zaphod wrote:
Fri Jan 14, 2022 20:19
Just tried to fit a new knob on the gear stick and now I notice someone has made a real mess of the threads, should it be M10? or is it something else (guessing it is a metric thread and not UNF!). I think it will be fine once I have run a die down it and re-cut the damaged section
Invest in a threadgage.
Image
http://www.m-gineering.nl/draad3.jpg
failing that, grab a bolt which you think is the same and try if you can mate up the threads without rocking

Image
http://www.m-gineering.nl/draad4.jpg
close, but no cigar: 1mm pitch does not equal 24 tpi
I already have a set! but the thread is quiet mashed so difficult to use it! The mind boggles as to how the damage was achieved..
Of all the things I have lost I think I miss my mind the most...

1952 MG TD
1959 Austin Healey Sprite
1975 MG Midget 1500
1990 Lotus Excel
2007 BMW E92 320d M Sport

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MetBlue
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Re: Gear stick thread

Post by MetBlue »

Mines butchers as well. I think people replace the gear knob and only find the thread is not the same after they've started forcing on the wrong thread. Then maybe they work out what thread their new knob needs and run this die down, butchering the original.
Unless you buy something specifically off the net, few people will have access to the M12 fine thread dies.
Tony
What goes together.... Must come apart.

Pete Boole
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Re: Gear stick thread

Post by Pete Boole »

You can get a die off fleabay for less than a tenner.

Pete

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