I wonder if putting some valve grinding stuff in the
area would work. Work it back and forth to lap the
parts together so that there is a big postive area of
contact -might help it stay put when tight.
Derek Willburn
Long Beach, CA
> Stevan Thomas wrote:
>
> In the old days I got a couple of seat posts really
> cheap because they
> slipped. I took it apart and noticed a very shiny
> patch (the high spot where it
> actually contacted) that has lost the matt finish
> that provided some grip. I
> masked the post so I could bead blast the mating
> surface and give it a new rough
> finish (do both parts) and...Viola! No more
> slippage.
>
> -------------
> Here's another, rather easy way to stop single-bolt
> clamps from slipping, taught to me by a shop owner.
> Take it apart, and cut a shim of medium-grit
> sandpaper to fit between the two surfaces, with a
> hole for the through-bolt. Put it back together,
> clamp it at the angle you like, and ride. The grit
> makes microdents on BOTH surfaces, right through the
> paper. I don't like those posts, but it works (at
> least on soft ones like Kalloy). With 20:20
> hindsight, it is perfectly obvious!
>
> harvey sachs
> mcLean va
>
>
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