What would be the torque setting for....

Bonzo said:
...the 7/32 hex handlebar clamp bolts please?
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Having never found a torque listed for these cap screws in any Norton publication i went with the standard torque for a 5/15 -24 which is 33 ft lbs dry and 26 ft lbs lubricated. I use 25 ft lbs with loctite 242 .
 
Just use common sense when tightening nuts and bolts, I only use a torque wench when doing rebuild of my motor or very important parts, other times just tighten what is needed by hand torque and even in the bible (workshop manual) have got some things over torqued, like the clutch nut for one.
 
Ron Hulton said:
Having never found a torque listed for these cap screws in any Norton publication i went with the standard torque for a 5/15 -24 which is 33 ft lbs dry and 26 ft lbs lubricated. I use 25 ft lbs with loctite 242 .
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That sounds high. I would have guessed around 20 lb ft or so.
I've looked everywhere for a number, they are all over the place from 9 ft ibs to about 27.
I found this chart for cap screws.

Tightening Torque Guide

Tightening Torque Guide for Grade 5 & 8 Hex Cap Screws This table is based on IFI 5th Edition Technical Data N-12/N-16, using Equation (1) and a torque coefficient, K=0.20 for non plated steel fasteners and K=0.15 for plated fasteners. These Figures represent an estimate of torque (torque...
www.almabolt.com
Grade 5, 14 - 19 ft lbs, Grade 8, 20-27.

Admittedlyl I use the 'Mike' standard of snug and a nip. Never had an issue.
 
A general rule with cap screws into aluminium is whatever you can apply by hand to a standard length allen key is about right. Screwing into iron/steel you can add a short extension (eg. a small ring spanner) and a little more force. Don't use loctite, it is a Norton Commando, not a Triumph twin!
 
hybridracer said:
A general rule with cap screws into aluminium is whatever you can apply by hand to a standard length allen key is about right. Screwing into iron/steel you can add a short extension (eg. a small ring spanner) and a little more force. Don't use loctite, it is a Norton Commando, not a Triumph twin!
Click to expand...
Must have missed that note in the EngineeringHandbook ;)
 
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