[modeleng] Re: Winson 14XX
- From: "Clif Walker" <clif.gwr@xxxxxxxxxxxxxx>
- To: <modeleng@xxxxxxxxxxxxx>
- Date: Sun, 31 Oct 2004 17:35:11 -0000
Hi,
This is with the wheels wedged up into about running position
Clif
----- Original Message -----
From: "Ron Head" <ron.head@xxxxxxxxxxxxx>
To: <modeleng@xxxxxxxxxxxxx>
Sent: Saturday, October 30, 2004 9:49 PM
Subject: [modeleng] Re: Winson 14XX
> Hi Clif
>
> Is this with the engine running on air, with the wheels clear of the
rails?
>
> Regards
> Ron Head
>
> ----- Original Message -----
> From: "Clif Walker" <clif.gwr@xxxxxxxxxxxxxx>
> To: <modeleng@xxxxxxxxxxxxx>
> Sent: Saturday, October 30, 2004 10:29 PM
> Subject: [modeleng] Winson 14XX
>
>
> > Hi All,
> > My Winson 14XX still has the ability to confound.
> > Whilst sorting out it's steam tests and the blow from the valve gear
there
> > was always a "boink" whilst running.At first I thought it was a bigend
and
> > did find a bit of play in one.I fixed that but the knock was still
there.I
> > next checked the other big end,took up a minute bit of play in that but
> > the boink still carried on.On checking again I found a bit of play in a
> > little end,made a new pin for that but the noise still went on.
> > Now at last I think that I have found it.
> > Winsons design only seems to give about a total clearance of about 15
thou
> > for the piston at the end of the cylinders.This has the net result that
if
> > the assembly of the piston rod to the crosshead and con rod to the big
end
> > is 7 thou out at either end of the stroke,the piston hits the end
> > cylinder covers.
> > I think that even the momentum of the piston or it bit of play in the
> > bearings would also allow it to do it.
> > I suppose that when I was testing the chassis on air,because of the
noise
> > from my compressor I did not hear it.
> >
> > Modifications are again in hand.
> > Oh boy,am I getting good at taking this loco to bits.
> >
> > Regards
> >
> > Clif
> > MODEL ENGINEERING DISCUSSION LIST.
> >
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> > line.
>
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