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 > MODEL ENGINEERING DISCUSSION LIST. > > To UNSUBSCRIBE from this list, send a blank email to, > modeleng-request@xxxxxxxxxxxxx with the word "unsubscribe" in the subject > line. > > MODEL ENGINEERING DISCUSSION LIST. > > To UNSUBSCRIBE from this list, send a blank email to, > modeleng-request@xxxxxxxxxxxxx with the word "unsubscribe" in the subject > line. MODEL ENGINEERING DISCUSSION LIST. To UNSUBSCRIBE from this list, send a blank email to, modeleng-request@xxxxxxxxxxxxx with the word "unsubscribe" in the subject line.