[modeleng] Re: non runner

Hello Ken,

This sounds like your valves are not sealing. I think that Conway is a slide
valve engine in which case I would guess that one or both slide valves are
not sitting on the cylinder face. Suggest you remove the valve chest covers
and check that valve is not being held off by the piston rod / buckle.

Good luck,

Barrie Purslow
Warrington UK


----- Original Message ----- 
From: "Kenneth Swales" <kenwillowbend@xxxxxxxxx>
To: <modeleng@xxxxxxxxxxxxx>
Sent: Tuesday, August 30, 2005 7:07 PM
Subject: [modeleng] non runner


> Hi
>
> I'm building (well trying)a 3 1/2 NG Conway.
>
> I have run the engine on compressed air.  I have now
> assembled it and got steam pressure up to 70.  Opened
> the regulator valve and it went straight through and
> up the chimney.  I tried turning the engine over but
> it made no difference other than different pressures
> at different positions of the stroke.
>
> What am I doing wrong?   Any Ideas.
>
> Cheers
>
> Ken
>
>
>
>
>
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