[modeleng] Re: Soft Packing
- From: "Dave Beaman" <davebeaman@xxxxxxxxxxxxxxxx>
- To: <modeleng@xxxxxxxxxxxxx>
- Date: Mon, 14 Mar 2005 22:09:48 -0800
The GWR used 3 and 1/2 turns on the piston/valve rod, then tighten the gland
back into the stuffing box. I have used the same method here on my sweet pea
but using a smaller string than recomended. Gives a good seal coatedin
graphite grease first to help it seat. my L&Y tank uses O rings, that works
well too but you need to ensure plenty of lubricant on the rod. The LMS used
cast iron packing. Once this started blowing, that was it. I have never seen
it used in our small gauges, would cause a lot of grief I think!
Hope this helps,
Dave.
----- Original Message -----
From: "John Pagett" <john.pagett@xxxxxxxxxx>
To: <modeleng@xxxxxxxxxxxxx>
Sent: Monday, March 14, 2005 12:11 PM
Subject: [modeleng] Soft Packing
Gents,
While the list is quiet, how do I pack pistons with graphited yarn?
I've tried several times and the steam blows past as if it wasn't there.
I've never seen any proper instructions.
Thanks,
JohnP
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