[modeleng] Re: Valve Problem
- From: "I.D.PRIEST." <idpriest@xxxxxxxxxxxxxxxx>
- To: <modeleng@xxxxxxxxxxxxx>
- Date: Wed, 27 May 2009 16:48:52 +0100
Peter,
Maybe the valve stem is either bent upwards or maybe the hole in the steam
chest where the spindle travels through is slightly high precluding the
valve from seating properly. A mate of mine had the same problem with a
super simplex and that is what we found was the casue of all the trouble.
Regards,
IDP
"Life should NOT be a journey to the grave with the intention of arriving
safely in an attractive and well preserved body, but rather to skid in
sideways, Champagne in one hand - strawberries in the other,
body thoroughly used up, totally worn out and screaming WOO HOO - What a
Ride!"
"Never drive faster than your gaurdian angel can fly"
Priest & Sons Model Engineers
http://www.kinvermes.pwp.blueyonder.co.uk/p1.htm
----- Original Message -----
From: "Peter Beevers" <peter@xxxxxxxxxxxxxx>
To: <modeleng@xxxxxxxxxxxxx>
Sent: Tuesday, May 26, 2009 11:34 AM
Subject: [modeleng] Re: Valve Problem
Bede,
It's the valve not seating properly, maybe because it doesn't have enough
vertical movement to seat it or not bedded in well.
Peter
----- Original Message -----
From: <bede@xxxxxxx>
To: <modeleng@xxxxxxxxxxxxx>
Sent: 26 May 2009 03:27
Subject: [modeleng] Valve Problem
> Hi All,
>
> Looking for help troubleshooting my Martin Evans' "Conway", 3.5"
> gauge narrow gauge 0-4-0.
>
> Tried to steam the loco over the weekend and it raised steam ok to
> working pressure (80psi), but when I opened the regulator/throttle, the
> steam just whooshed directly up the blast pipe, no power to the
> cylinders at all in either direction, tried pushing the loco back and
> forth, but no luck.
>
> I have to admit that I did an idiot thing- the smokebox was full of
> cinders and ash and my steaming buddy and I took the lazy way out and
> tipped the whole engine upright to dump the debris out. I'm thinking
> now that this somehow caused one or both valves to become unseated which
> resulted in the steam just going straight out the exhaust port. This
> loco has outside cylinders with the steam chests inside the frames,
> Stephenson gear with the slide/D valves vertical against the port faces.
> But I can't imagine the valves coming away that easily, esp. as
> they're vertical...
>
> Any suggestions on what steps to take to remedy this, I really hope I
> don't have to strip the loco down...
>
> Thanks,
> Bede in breezy Brooklyn
> 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.
Other related posts:
