[modeleng] Re: GWR Valve Timing

  • From: "Clifton" <clif.gwr@xxxxxxxxxxxx>
  • To: <modeleng@xxxxxxxxxxxxx>
  • Date: Sat, 18 Dec 2010 09:53:27 -0000

Hi Allan,

Thanks very much.
I just couldn't remember and despite going through a lot of books could just 
not find a reference to it.

Regards

Clif
----- Original Message ----- 
From: "Alan Stepney" <alan@xxxxxxxxxxxxxxxx>
To: <modeleng@xxxxxxxxxxxxx>
Sent: Friday, December 17, 2010 10:49 PM
Subject: [modeleng] Re: GWR Valve Timing


> With the right hand piston at forward-dead-centre, the left hand coupling
> rod will be at the top of its stroke.
>
> Alan
> ----- Original Message ----- 
> From: "Clifton" <clif.gwr@xxxxxxxxxxxx>
> To: <modeleng@xxxxxxxxxxxxx>
> Sent: Thursday, December 16, 2010 5:49 PM
> Subject: [modeleng] GWR Valve Timing
>
>
> Hi All,
> Help !!
> I must be getting old.
>
> Having now built over the years four GWR steam locos for the life of me I
> cannot remember the Crank Pin, Coupling rod positions for an inside 
> cylinder
> loco.
> The locos have all gone to new homes so I can't check them.
>
> I seem to remember that the RH coupling rod leads but  with the RH 
> coupling
> rod at the forward position what are the respective Crank pin positions?. 
> Is
> the opposite coupling rod up or down?
> The amazing thing is that I have checked through several books plus the
> words and music for Pansy & Firefly & nowhere seems to mention the
> positions.
>
> OK I know that Firefly is outside cylindered but I thought at least the
> coupling rod positions would be mentioned.
>
> Having a Senior moment which has lasted two days so far.
>
> Thanks in advance for your replies
>
> Clif
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