Re: Leaking packing, CM story, NNG

Dan Robirds Wrote:
-------------------------------------------------------
> One of the advantages of later piston valve
> designs is that most built new were inside ad-
> mission - the packing only subject to exhaust
> steam.  I believe most conversions - no new
> cylinder castings - to piston valves retained
> outside admission for compatibility.


IIRC, GLRR #111 was converted in this way -

With piston-valve "kits" bolted to the top of the cylinders in place of the old "D" slide valves, along with superheaters, new supply pipes, etc, etc.

For a good illustration, see Roger's photo at the top of [ngdiscussion.net].

- El Abuelo Histœrico, Greengo y Curmudgeoño de los Locomoturas Viejos y Verdes,
aka Der Grossväterlich DünkelOlivGrünDampfKesselMantelLiebHabender



Edited 1 time(s). Last edit at 05/19/2019 01:06PM by Russo Loco.