You could start by disassembling the lever mechanism and looking for wear on
the cam part of the lever and inside the holes along the surfaces that the
cam turns on.
David Feldman
>
> My question today is, do quick releases wear out? I have a mid 70's NR hub
> with quick release that when tightened so the lever is parallel with the
> fork the lever slowly opens. This happens almost immediately then stops
when
> the lever is maybe 15- 20 degrees from parallel. I've tried loosening or
> tightening the nut on the opposite side but it still wants to open. Worn
out
> quick release?
>
> David Goerndt