hammer "throw" on hard blow

[Farrell]

Or, it could be the case where the pin is snug on one side of the flange 
(one bushing), but is quite loose on the other side (other bushing). Such a 
situation could give good gram resistance values and a good swing count, yet 
still wobble all over the place on a hard blow.

I wonder also if it could be the wippen flange. If the wippen flange wobbled 
on a hard blow, the jack could be pushing just a hair over on the butt 
leather - up on the ridge from where a depression has formed over the years 
where the jack normally hits. That way it would be pushing only on one side 
of the butt on a hard blow. Maybe?

I'd check all that pinning real close.

Terry Farrell

----- Original Message ----- 
From: "David Ilvedson" <ilvey@sbcglobal.net>

> I'd check that pinning again...what's OK in your book?   If you are just 
> checking swings or gram resistance you might not be considering it is 
> loose in the birdseye and tight in the bushing.   Pop out a center and 
> check the birdseye and repin a problem hammer.
>
> David I.
>
>>Cy Shuster wrote:
>
>>> Could it be caused by unequal friction on each side of the bushing?
>>>
>>> --Cy Shuster--