5 lb feet does not sound like enough torque for this application where one
is definitely concerned about tension as well as shear. Check
again. Even a mere 1/4" grade 8 bolt is 13 and 5/16 is 27.
PS: I'd make the sucker tight so it doesn't fret or move in cross wind
landings or bumpy surfaces.
In a message dated 1/9/2011 4:57:24 P.M. Central Standard Time,
paul@tbm700.com writes:
i did the product upgrade with hardware from Lancair. The original
bolts were rubbing the new Desser tires. When I removed the forks I
found a small amount of what appears to be corrosion, possibly some fretting.
A few of the bolts were not very tight when I removed them. On the
Legacy manuals there are no special TRQ for these bolts so I used the table
value of around 60 in-lb. I will retorque after a few landings.
I suggest checking these for torque if you have this Type II gear because the
mating surface is slotted to allow the tire to toe-in and this fork could
rotate about the strut if the bolts are not secure.
Paul
L2K-186
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