NickZ
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- Joined
- Oct 31, 2018
- Messages
- 480
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I am installing the vernier ISO front and rear in a 73 750 frame. I have the 06.7337 and 06.7117 conversion kits from AN. The bike is disassembled so I am doing the fitting on the bench with the mounts secured in my vise.
![Installing vernier ISOs Installing vernier ISOs](https://www.accessnorton.com/data/attachments/85/85815-8566c2407e174e279b7763d989c3a8f9.jpg?hash=hWbCQH4XTi)
The problem I am having is that when I tighten the mounting bolt after setting the proper gap with it loose, the gap is significantly smaller than what I set it to. I expected that the threaded sleeve and screw on ends would hold the gap constant. I reviewed this thread:
www.accessnorton.com
which seems to indicate that the gap can change with tightening.
Is this "normal" and if so, how does one get the desired gap after torqueing? Trial & error?
I am using 30 ft-lb torque as the instructions call for and I am simulating the engine/frame being "levered" using a clamp or bearing puller when measuring with feeler gauges.
![Installing vernier ISOs Installing vernier ISOs](https://www.accessnorton.com/data/attachments/85/85815-8566c2407e174e279b7763d989c3a8f9.jpg?hash=hWbCQH4XTi)
The problem I am having is that when I tighten the mounting bolt after setting the proper gap with it loose, the gap is significantly smaller than what I set it to. I expected that the threaded sleeve and screw on ends would hold the gap constant. I reviewed this thread:
![www.accessnorton.com](https://www.accessnorton.com/data/assets/logo/accessNorton512.jpg)
Characteristics created by Incorrectly adjusted ISO (Too tight & Too loose)
I have concern about MK3 -AN 06-4674 and 06-4666 Gaiters fitment Many years ago, I bought MK3 ISO conversion kits for my Commando. After all those years, gaiters needed replacement both front and rear. I have ordered Genuine AN replacement ones . The problem comes when I try to fit them. I you...
![www.accessnorton.com](https://www.accessnorton.com/images/NortonCommandoFavicon.png)
which seems to indicate that the gap can change with tightening.
Is this "normal" and if so, how does one get the desired gap after torqueing? Trial & error?
I am using 30 ft-lb torque as the instructions call for and I am simulating the engine/frame being "levered" using a clamp or bearing puller when measuring with feeler gauges.