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James
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Joined: 26 Jun 2006
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Location: Nr. Gainsborough, Lincolnshire, England.
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 Posted: Thu Apr 19, 2007 7:20 pm Post subject: |
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Aye cock I'll try.
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Mamodman123
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Joined: 19 Jul 2006
Posts: 31056
Location: Midlands, UK
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| Posted: Thu Apr 19, 2007 7:20 pm Post subject: |
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| James wrote: | | Aye cock I'll try. |
Nice one Jim bob 
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James
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Location: Nr. Gainsborough, Lincolnshire, England.
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| Posted: Thu Apr 19, 2007 7:22 pm Post subject: |
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Jimbob Bigknob 
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Mamodman123
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Joined: 19 Jul 2006
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Location: Midlands, UK
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| Posted: Thu Apr 19, 2007 7:23 pm Post subject: |
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| James wrote: | | Jimbob Bigknob |
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Titan
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Joined: 19 Jul 2006
Posts: 685
Location: Derby
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| Posted: Thu Apr 19, 2007 8:05 pm Post subject: |
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Sorry I took a little while to get the photo sorted, but this is the arrangement on Titan:
Just a pipe soldered straight in to a thin ring and put under in this case the filler valve. Washer above and below. Only modification required is to file a verticle groove through the threads of the filler valve so steam can pass up between boiler bush and valve threads.
Although in this particular case it is showing the steam supply for the dynamo, (because it was easier to photograph!) the principle is the same for the whistle/pressure gauge. It also has the advantage that the height of the whistle is only increased slightly, so the lever on top will still fit through the slot in the cab.
You might find on the whistle that it is necessary to cut off the ring part of the upright on the whistle and solder that directly to the banjo fitting instead to lower the whistle a bit more - it should only sit a couple of mm higher then.
This also has the advantage that it does not matter how far you need to screw the valve in to get it to seal - with your arrangement if the washer needs replacing you may find that when tightened again the pipe does not line up anymore due to the new washer being slightly thicker than the old one and needing 1/8 turn less to tighten, which might tempt you to overtighten to get the pipe to line up again.
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Titan
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Location: Derby
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| Posted: Thu Apr 19, 2007 8:07 pm Post subject: |
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Actually after typing all that the photo actually shows the arrangement on the whistle for the pressure gauge reasonably well too - you can just make out the pipe going through in to the cab.
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Mamodman123
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Joined: 19 Jul 2006
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Location: Midlands, UK
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| Posted: Thu Apr 19, 2007 8:11 pm Post subject: |
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Wow thats so simple Titan!  I think ive got some brass tubing the correct size aswell!
I never thought about the washer either! This Way i can remove it easily too! I don't have a whistle on Rosa just a safety valve and water top up.
So all you do is file about half way up to let steam into the "ring"? Any chance of a picture of this Titan? 
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Titan
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Joined: 19 Jul 2006
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Location: Derby
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| Posted: Thu Apr 19, 2007 8:24 pm Post subject: |
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Dunno, my camera is not all that great at taking close ups.
You actually need to file virtually all the way up, you have to provide a path past the bottom washer, then the steam can find its way around the remaining threads above and because of that it does not matter if the filed groove does not line up with the pipe!
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steamyjim
Steam Legend!!
Joined: 27 Oct 2006
Posts: 4850
Location: Pensford Somerset
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| Posted: Thu Apr 19, 2007 8:30 pm Post subject: |
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im hoping to 'titanise my new SL1'
we should send off to oxford dictionary people the new word 'titanise'
i can see it now
TITANISE: the act of converting ones mamod locomotive |
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Mamodman123
Steam God!
Joined: 19 Jul 2006
Posts: 31056
Location: Midlands, UK
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| Posted: Thu Apr 19, 2007 8:32 pm Post subject: |
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| Titan wrote: | Dunno, my camera is not all that great at taking close ups.
You actually need to file virtually all the way up, you have to provide a path past the bottom washer, then the steam can find its way around the remaining threads above and because of that it does not matter if the filed groove does not line up with the pipe! |
I see Titan! Very clever idea! 
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SillyBilly
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| Posted: Thu Apr 19, 2007 8:55 pm Post subject: |
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Titan,
Have you tryed putting your camera on the 'flower' setting? |
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Titan
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Joined: 19 Jul 2006
Posts: 685
Location: Derby
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| Posted: Thu Apr 19, 2007 9:16 pm Post subject: |
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Yes, previous picture of Titan was on flower setting, Might have a go tomorrow night and see what I can do.
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SPOKESMAN
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| Posted: Fri Apr 20, 2007 4:43 am Post subject: |
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| Titan wrote: | Sorry I took a little while to get the photo sorted, but this is the arrangement on Titan:
Just a pipe soldered straight in to a thin ring and put under in this case the filler valve. Washer above and below. Only modification required is to file a verticle groove through the threads of the filler valve so steam can pass up between boiler bush and valve threads.
Although in this particular case it is showing the steam supply for the dynamo, (because it was easier to photograph!) the principle is the same for the whistle/pressure gauge. It also has the advantage that the height of the whistle is only increased slightly, so the lever on top will still fit through the slot in the cab.
You might find on the whistle that it is necessary to cut off the ring part of the upright on the whistle and solder that directly to the banjo fitting instead to lower the whistle a bit more - it should only sit a couple of mm higher then.
This also has the advantage that it does not matter how far you need to screw the valve in to get it to seal - with your arrangement if the washer needs replacing you may find that when tightened again the pipe does not line up anymore due to the new washer being slightly thicker than the old one and needing 1/8 turn less to tighten, which might tempt you to overtighten to get the pipe to line up again. |
Clever and simple!  |
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