Pinning on new flanges

[Richard Brekne]

Dave Nereson wrote:

>.............  What happens to the center pin hole when it gets humid?
>My little un-scientific experiment suggests "not much", as does Yamaha's
>position.  Are they saying that when humid, the flange gets bigger, but it
>expands in all directions, thus shrinking the hole a little, counteracting
>the expansion?  And vice versa?
>    Should we pin flanges tighter when it's humid and looser when it's dry,
>or doesn't it matter?
>    --David Nereson, RPT
>  
>
Well.. if Yamaha has it right, then its about the same whether you repin 
in this, that, or the other climatic condition. Myself... I've always 
pinned at 5-7 swings no mater what the situation is.  If  the bushing 
cloth is reasonably clean and free from diverse chemical additives.... 
then this has always performed well. The addition of Teflon powder 
pretty much insures a stable, firm bushing with optimal friction. 

Cheers
RicB