Message-ID: 
Newsgroups: AIRGUN.LIST
Bob,
both differences you found will increase the power, especially the longer 
tem
travel afforded
by the lower seat ht.
Thx for info.
ld
------------------
Bob Prokopczyk wrote:
> Ld,
>     I did my caveman measurements and this is what I came up with. The ID 
f
> the factory seat will hold the smooth end of a 5/32's drill bit snugly. The
> replacement seat ID is larger, I can wrap a piece of matchbook halfway
> around the drillbit and still slide it into the hole. I measured the
> matchbook thickness against my feeler gauges and it is closest to .018in. 
o
> I am saying the aproximate difference in ID is .018in. The height of the
> seat is .024in greater on the factory seat than on the replacement seat
> (feeler gauges again to estimate). Wouldn't this work like getting a great
> lift on an engine camshaft when you use a lower seat since the  hammer can
> push it flush with the valve body before losing contact? Also will .018in
> increase in ID allow a significantly greater amount of air to escape per
> shot? Wish I could give better measurments but I'm working with the tools 
t
> hand. I'll report back with the differences in velocity as soon as I chrony
> it .
> Bob P.
>
> I've been seeing some shoot alot harder than others, you may have hit on 
he
> reason!
> ld
>
> Bob Prokopczyk wrote:
>
> > Larry,
> >     Yes, the steel ring was there. The delrin? part of the seat seemed
> much
> > shallower than the old seat and the id seemed to be larger. I don't have
> any
> > neat toys like say an inside micrometer but I'll test it cave man style
> with
> > the non business end of drill bits to see if it's just an illusion.
> > Bob P.
> >
> > Bob,
> >
> > Did the seat still have the steel re-inforcement sleeve in it?  ld
>
> --
>  (Bob Prokopczyk)
>          AirPower Information Services BBS * 610-259-2193
>       http://www.airpower.com  Telnet://airpower.dyn.ml.org
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