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Discussion Starter · #1 ·
I own a torque wrench, but exactly how tight is the appropriate pressure
on a Hollowtech cap? Docs say 0.4-0.7 Nm (4-6 in lbs).

I assume this means just enough preload until the end play is gone and
the o-ring seals against the bearing plates? Kinda like old unsealed bearings
of old? Should one, tighten, spin, and tighten again?

My torque wrench has sort of a low end of 10 Nm. Need to find torque scredriver. ;)

-r
 

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Vaginatarian
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5,686 Posts
I dont think your torque wrench will fit the plastic nut, Park tools has a external BB wrench that has a thumbwheel nut tightener on one end. I tap the other side of the crank with a rubber mallet first, then tighten the nut .
 

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Discussion Starter · #6 ·
Mike T. said:
It's one pound of pressure on the end of a 4-6" wrench. In other words - not much.
Now that is something I can do! I had been try to sort of a click (it was the pedals
being loose :madman: ), so I have been playing with the BB and have no sense
of how tight this should be except that it is bearings. Now where is my spring scale ...
Thnx all.

-r
 
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