V-Twin
Well-known member
- Joined
- Mar 23, 2008
- Messages
- 148
Here's how I installed the 5" speedo and tach using adapter plates that I had CNC punched off a CAD drawing. I found a drawing somewhere (was it posted by you BBShark?) and my brotehr modelled it in SW. Below is a design drawing off that model, I don't have the original design drawing. The brackets will need a final trim for the 2 "dowels" next to the holes on the little tabs.
The additional little holes at 12 and 6 o clock are for leds for the warning and blinker signals. They are not needed. I'm now going to use them for leds for the signal indicators and a low and high beam indicator on the bottom ones. The measurements are in mm, if you need inches let me know or divide by 25.4
![24937d42b6cf46.jpg 24937d42b6cf46.jpg](https://data.vettemod.com/attachments/14/14370-f6d4b43434bb7666c60bca6bfa3412c5.jpg?hash=9tS0NDS7dm)
Here's how the adapter rings come out of the CNC turret punch:
![24937d42e98e9f.jpg 24937d42e98e9f.jpg](https://data.vettemod.com/attachments/14/14371-da5abdfbc8ad1778b849b314b66eafa6.jpg?hash=2lq9-8itF3)
Because of the jagged finish the ID must be touched up a bit, easiest done with a round flapper disc type abrasive roll. I just went over the ID to take off the high spots of the punch marks so it's a smooth hole. The gauge fits perfectly afterwards.
This system only secures the top part of the gauge pod, the stock system uses a small bracket on both the speedo and tach to secure the bottom. I fabricated some small aluminium brackets to use the original mounting hole (and locating stud) for those brackets and they screw to the lower 6 o clock screw.
![24937d42ce4973.jpg 24937d42ce4973.jpg](https://data.vettemod.com/attachments/14/14372-d80bd846932c2b890123a4adadf0831b.jpg?hash=2AvYRpMsK4)
![24937d43008e0d.jpg 24937d43008e0d.jpg](https://data.vettemod.com/attachments/14/14373-d2aec395f55e72a7d31aa11976388ee2.jpg?hash=0q7DlfVecq)
The additional little holes at 12 and 6 o clock are for leds for the warning and blinker signals. They are not needed. I'm now going to use them for leds for the signal indicators and a low and high beam indicator on the bottom ones. The measurements are in mm, if you need inches let me know or divide by 25.4
![24937d42b6cf46.jpg 24937d42b6cf46.jpg](https://data.vettemod.com/attachments/14/14370-f6d4b43434bb7666c60bca6bfa3412c5.jpg?hash=9tS0NDS7dm)
Here's how the adapter rings come out of the CNC turret punch:
![24937d42e98e9f.jpg 24937d42e98e9f.jpg](https://data.vettemod.com/attachments/14/14371-da5abdfbc8ad1778b849b314b66eafa6.jpg?hash=2lq9-8itF3)
Because of the jagged finish the ID must be touched up a bit, easiest done with a round flapper disc type abrasive roll. I just went over the ID to take off the high spots of the punch marks so it's a smooth hole. The gauge fits perfectly afterwards.
This system only secures the top part of the gauge pod, the stock system uses a small bracket on both the speedo and tach to secure the bottom. I fabricated some small aluminium brackets to use the original mounting hole (and locating stud) for those brackets and they screw to the lower 6 o clock screw.
![24937d42ce4973.jpg 24937d42ce4973.jpg](https://data.vettemod.com/attachments/14/14372-d80bd846932c2b890123a4adadf0831b.jpg?hash=2AvYRpMsK4)
![24937d43008e0d.jpg 24937d43008e0d.jpg](https://data.vettemod.com/attachments/14/14373-d2aec395f55e72a7d31aa11976388ee2.jpg?hash=0q7DlfVecq)
Last edited: