[modeleng] Re: Piston Glands
- From: "Pendragon" <idpriest@xxxxxxxxxxxxxxxx>
- To: <modeleng@xxxxxxxxxxxxx>
- Date: Mon, 7 Nov 2005 23:34:58 -0000
Barrie,
I agree with Clif use PTFE glands machined from the solid bar.
Regards IP
"Life should NOT be a journey to the grave with the intention of =
arriving
safely in an attractive and well preserved body, but rather to skid in
sideways, Champagne in one hand - strawberries in the other,=20
body thoroughly used up, totally worn out and screaming WOO HOO - What a
Ride!"=20
=20
"Never drive faster than your gaurdian angel can fly"
=20
Priest & Sons Model Engineers
http://www.kinvermes.pwp.blueyonder.co.uk/p1.htm
-----Original Message-----
From: modeleng-bounce@xxxxxxxxxxxxx =
[mailto:modeleng-bounce@xxxxxxxxxxxxx]
On Behalf Of Barrie Purslow
Sent: 07 November 2005 19:27
To: Model Engineering List
Subject: [modeleng] Piston Glands
I am currently refurbishing a 5" Duchess. The engine has seen quite a =
bit of
use, having had several owners the last of whom dumped it in a barn! I =
am
currently working on the cylinders which have rusted quite badly. The =
piston
rod glands are fairly conventional stuffing boxes but each gland has =
four
10ba studs with a pair of locking nuts on each stud. This arrangement is
very difficult to adjust on the outside cylinders and virtually =
impossible
on the inside cylinders (It is a four cylinder engine). I am =
contemplating
modifying the arrangement and replacing the stuffing boxes with O =
rings.
Similarly with the piston valve rods. Whilst I have used O rings with
considerable success on piston valve rods I have never tried them as a
piston rod seal.=20
Any thoughts gents?
Barrie=20
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