# speedo & tacho drive blanking
**URL:** https://forum.motoguzziclub.co.uk/t/speedo-tacho-drive-blanking/1579
**Category:** Big Block Tonti and Loop Frame models
**Created:** [15 September 2014 11:21 UTC](https://forum.motoguzziclub.co.uk/t/speedo-tacho-drive-blanking/1579 "2014-09-15T11:21:19Z")
**Posts on this page:** 12
**Page:** 1
### Author:  [@lemon](https://forum.motoguzziclub.co.uk/u/lemon)
#### Post date: [15 September 2014 11:21 UTC](https://forum.motoguzziclub.co.uk/t/speedo-tacho-drive-blanking/1579/1 "2014-09-15T11:21:19Z")
I have a lovely shiny moto gadget clock which makes the speedo and tacho drives surplus to requirements. I have removed the drives and taken them to several nut’n’bolt shops to find a bolt to use to blank off the holes but no one seems able to match the pitch. Any ideas apart form shaving down a wine cork??
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### Author:  [@Exmembers](https://forum.motoguzziclub.co.uk/u/Exmembers)
#### Post date: [15 September 2014 12:15 UTC](https://forum.motoguzziclub.co.uk/t/speedo-tacho-drive-blanking/1579/2 "2014-09-15T12:15:30Z")
> [@lemon](#):
>
> I have a lovely shiny moto gadget clock which makes the speedo and tacho drives surplus to requirements. I have removed the drives and taken them to several nut’n’bolt shops to find a bolt to use to blank off the holes but no one seems able to match the pitch. Any ideas apart form shaving down a wine cork??
err I dunno, but i figure that i am going to run into the same problem,
it’s probably a metric fine thread, and a decent size, you can buy plastic bungs in various sizes, of the type that fit into the end of tubing,
or you can wait until I sort mine out and I will make a spare one,
that should not be to long, the only thing I am lacking is a threading tool, and hex bar,
and of course the experiance of doing it!
show a picture of the clock fitted!ianboydsnr2014-09-15 12:19:08
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### Author:  [@Chris950s](https://forum.motoguzziclub.co.uk/u/Chris950s)
#### Post date: [15 September 2014 12:59 UTC](https://forum.motoguzziclub.co.uk/t/speedo-tacho-drive-blanking/1579/3 "2014-09-15T12:59:55Z")
What you need are thread pitch gauges to measure the pitch and vernier calipers to measure the diameter (or you need someone who has these vital tools). If they are in aluminium I would doubt that the pitch is metric fine as it would strip too easily.
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### Author:  [@Exmembers](https://forum.motoguzziclub.co.uk/u/Exmembers)
#### Post date: [15 September 2014 14:27 UTC](https://forum.motoguzziclub.co.uk/t/speedo-tacho-drive-blanking/1579/4 "2014-09-15T14:27:57Z")
As I thought, it’s a metric fine thread, it’s 16mm by 1.5mm,
hard to find, but used in some sump plugs!
sump plug
or cheaper
cheaper sump plug
I did try looking for bolts, but they were to long and about £7.50 eachianboydsnr2014-09-15 14:30:37
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### Author:  [@guzzibrat](https://forum.motoguzziclub.co.uk/u/guzzibrat)
#### Post date: [15 September 2014 17:09 UTC](https://forum.motoguzziclub.co.uk/t/speedo-tacho-drive-blanking/1579/5 "2014-09-15T17:09:02Z")
My T3Cali has a factory fitted plug for the tacho.
If it’s useful I can measure it p.
It’s made of brass.
All the best
Steve
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### Author:  [@lemon](https://forum.motoguzziclub.co.uk/u/lemon)
#### Post date: [15 September 2014 17:58 UTC](https://forum.motoguzziclub.co.uk/t/speedo-tacho-drive-blanking/1579/6 "2014-09-15T17:58:16Z")
Thanks for the info. I’m going to buy a couple of the cheap ones and see how I get on 🙂
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### Author:  [@italianmotor](https://forum.motoguzziclub.co.uk/u/italianmotor)
#### Post date: [16 September 2014 15:37 UTC](https://forum.motoguzziclub.co.uk/t/speedo-tacho-drive-blanking/1579/7 "2014-09-16T15:37:22Z")
Bit of neatly applied black/clear silicone?
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### Author:  [@Oldrat](https://forum.motoguzziclub.co.uk/u/Oldrat)
#### Post date: [16 September 2014 22:48 UTC](https://forum.motoguzziclub.co.uk/t/speedo-tacho-drive-blanking/1579/8 "2014-09-16T22:48:47Z")
Sorry to hijack, well a partial hijack.
Firstly I’m interested in this solution as I’m fitting a Motogadget speedo, so Ian I’m interested to see how you get on.
Secondly, anyone recommend someone with experience of fitting Motogadget equipment?
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### Author:  [@Exmembers](https://forum.motoguzziclub.co.uk/u/Exmembers)
#### Post date: [16 September 2014 23:15 UTC](https://forum.motoguzziclub.co.uk/t/speedo-tacho-drive-blanking/1579/9 "2014-09-16T23:15:41Z")
> [@Oldrat](#):
>
> Sorry to hijack, well a partial hijack.
>
> Firstly I’m interested in this solution as I’m fitting a Motogadget speedo, so Ian I’m interested to see how you get on.
>
> Secondly, anyone recommend someone with experience of fitting Motogadget equipment?
>
> \
There’s a couple of threads on Advrider,
Here
Also I think chrisshrops on ukgser is fitting a munit to his airheadianboydsnr2014-09-16 23:17:47
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### Author:  [@lemon](https://forum.motoguzziclub.co.uk/u/lemon)
#### Post date: [16 September 2014 23:16 UTC](https://forum.motoguzziclub.co.uk/t/speedo-tacho-drive-blanking/1579/10 "2014-09-16T23:16:17Z")
Secondly, anyone recommend someone with experience of fitting Motogadget equipment?
[/quote]
Steve Hallam if Croydon’s not too far. A wiring legend!
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### Author:  [@Oldrat](https://forum.motoguzziclub.co.uk/u/Oldrat)
#### Post date: [17 September 2014 21:53 UTC](https://forum.motoguzziclub.co.uk/t/speedo-tacho-drive-blanking/1579/11 "2014-09-17T21:53:57Z")
Thank you for that. In looking for Steve Hallam, I’ve seen mention of Paul in Cuffley.
Anyone heard of him, I’d like contact details.
Only because it’s much nearer though.
Cheers
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### Author:  [@lemon](https://forum.motoguzziclub.co.uk/u/lemon)
#### Post date: [29 September 2014 15:05 UTC](https://forum.motoguzziclub.co.uk/t/speedo-tacho-drive-blanking/1579/12 "2014-09-29T15:05:23Z")
[QUOTE=ianboydsnr] As I thought, it’s a metric fine thread, it’s 16mm by 1.5mm,
hard to find, but used in some sump plugs!
sump plug
or cheaper
cheaper sump plug
I did try looking for bolts, but they were to long and about £7.50 each[/QUOTE]
went for the cheaper option, took a while to arrive but fits perfectly!
thank you!