[modeleng] Re: Soft Packing
- From: John Pagett <john.pagett@xxxxxxxxxx>
- To: modeleng@xxxxxxxxxxxxx
- Date: Thu, 17 Mar 2005 22:17:31 +0000
Gents,
My problem is the soft packing of the pistons on gunmetal cylinders, not
the glands for the piston rods.
I can get the square packing in, it just doesn't seem to stop the steam
from flowing past! One of our club members suggests packing it in really
tight - i.e. an overlength piece of packing compressed lengthwise as it
is pushed in to "fatten it up". I think this is better but how much over
length should it be? pistons are 1" diameter with 1/8" x 1/8" groove.
Should I be aiming for a completely steam tight seal?
Thanks,
John
alan wrote:
> For the square packing in cylinders, a diagonally cut with a shallow angle
> works best.
>
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