Accucraft 3-cylinder Shay safety valve fail......................

As David says, the dome's construction looks similar to that of Accucraft's Sea Lion: on that loco, the top section is threaded onto the SV housing, and closes onto the lower section of the dome, which is a brass pressing/spinning. If it is similar -and if I remember correctly- the penetrating oil will need to go just inside the aperture at the top of the dome cover. The joint where the paint is, is merely a butt joint, and is not threaded.

I hear and obey. Copious amounts of le huile-penetrant are, even as I write this, seeping their lubricious way into the recalcitrant threadments.......
 
Looking at the "gap" in the dome where it meets the "base", it almost looks like there is paint there? Could it be painted over and that needs to be "cut through" to remove the dome? Being perfectly round it would be a candidate to be threaded too, how did the decorations unscrew? Were they threaded into the dome "shell" or did one of them seem to reach inside to something else?

It sure looks like a candidate to unscrew. Now, my stupid question: how do you know there is something inside? (I said it was a dumb question)

Greg
I don't think that's paint - there's a white substance that sometime excretes from the joints - certainly I've seen similar on my Accy Shay :):)
 
I don't think that's paint - there's a white substance that sometime excretes from the joints - certainly I've seen similar on my Accy Shay :):)

I think that's probably fourteen years-worth of water accretion from the steam. We'll find out when I finally get that dang top off.
 
Peg spanner, would be my thoughts, have to be a good fit though
 
Time to upgrade to a Wee Bee Loco Products Safety valve. Simon at ANG carries them as does Jay Kovac here in the states. They are made by the leader of our local steam group. Most all of my engines have them installed, especially if the original is weepy like the stock Roundhouse ones are.
 
Tac could you put screws of the appropiate threads in two threaded holes on the top of the dome and then put a bar in between them to give you a bit of purchase on the dome?
Mick
 
Time to upgrade to a Wee Bee Loco Products Safety valve. Simon at ANG carries them as does Jay Kovac here in the states. They are made by the leader of our local steam group. Most all of my engines have them installed, especially if the original is weepy like the stock Roundhouse ones are.
Slight thread drift is ANG in Uk? If so could you post a link please have been searching with no luck. Some of the replies sent me to Triang!
 
Really?

Yup did not recognise ANG, now of course when linked found em. I can now ring him and ask if I can get a flatulent safety valve for my Roundhouse locs.
 
Dunnyrail - ANG is in the West Country - Anything Narrow Gauge - Simon Wentworth.

Mr Dodger - I already have four Wee-Bee s/vs, thanks.

The front dome is a solid piece that screws on to the flange, so it might be that the rear dome is, too. I'm going to have to file a couple of flats on it and use a wrench. :(
 
SImon also has a website for the rest of his hobby shop that carries the OO and such trains. I have seen pics of the shop and it really is one of the nicest shops I have seen in many years, well laid out, clean, organized and well stocked. Many shops in the USA are a bit messy and dont give a very professional image when you walk in.
 
There has to be someone who has accessed the safety valve before, have you tried any of the US forums?
Nope. I used to be on the most popular of them, begins with M and ends with S, but got so much hassle from one particular guy there that I gave up on it - that was about ten years back. I look in from time to time, and he's still there, as popular as a fart in an elevator but seemingly oblivious to the the smell. Greg will know who I mean. It's a pity really - there were and still are some VERY skilled craftsmen there - don't let anybody tell you that Americans are so used to going into a store to buy stuff that they don't build it any more. The sight of a totally scratch-built live-steam loco in 1/20.3 will cheer you up for a good while, as well and folks like Herr Meinhold over in Germany, another master craftsman who could hold his head high anywhere. I miss being there, but I was tired of being the captain's dog for the aforementioned klutz.

I'm still waiting to hear back from Accucraft themselves....but not holding my breath.
 
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SImon also has a website for the rest of his hobby shop that carries the OO and such trains. I have seen pics of the shop and it really is one of the nicest shops I have seen in many years, well laid out, clean, organized and well stocked. Many shops in the USA are a bit messy and dont give a very professional image when you walk in.
We are staying just a few miles away - don't be fooled by the photos, but still a decent shop to visit, although small - well, it was the last time I was there :p
 
tac foley tac foley have you tried asking on the UK Garden Railway Forum they are live steam orientated, and there is a good chance somebody there could help you, and it may be quicker than asking Accucraft.

Well, I'm on FB 16mm, FB G1MRA, and in touch with Dave Mees, Graham Langer and Ryan Bednarik over in PA. I might just have cracked it, from his advice. The UK Garden Railway Forum is not one with which I have ever had any dealings - perhaps I ought to rectify that.
 
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SImon also has a website for the rest of his hobby shop that carries the OO and such trains. I have seen pics of the shop and it really is one of the nicest shops I have seen in many years, well laid out, clean, organized and well stocked. Many shops in the USA are a bit messy and dont give a very professional image when you walk in.
Just called in, to Simon's new shop in Holsworty - a few yards down the road from the old one :nod::nod:
 
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