I have looked through the forum on this question, and can see many suggest taking the old mounts out and welding a new one in ... but!
I wondered if I could get some views on my predicament.
The left (upper) rear shock mount is pretty well stripped (not by me!).
I noticed this when I took the shocks off to fiddle with and repaint.
It had a M10 (nylock) bolt on it, installed by the previous owner.
I am thinking to (perhaps!, based on your wise thoughts!) get a die and reduce this to an M8 metric coarse.
I think I have to go to this size as the core diameter of the (stripped) stud/bolt is about 8.5mm
I see previous people have had success with a 3/8 x 16 UNC ... but the 'outside' diameter of the threads on this would be 9.5mm ... so wont work in this case?
Whereas an M8 bolt has a core = 6.5mm and outside = 8mm ... so I'd emery off about 0.5mm!
I suppose my main question is will a M8 bolt be okay ... or is this too small?
I note that the 'general recommendations' are that a M8 bolt has a torque of around 30Nm, whilst a M10 has a torque of 55Nm ... this is my worry!
I think the Upper shock bolt's torque is around 34 - 52 Nm ... in the service manual?
Any thoughts and wise advice welcome.
Cheers Niall (& Fergus)
1980 GS550E (Sussex, UK)
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