Office of Steam Forum for Model & Toy Steam Gas & Hot Air Engines
Builds, Repairs, Show Your Machines! => Videos The Office of Steam Cinema => Topic started by: Steamburns on March 20, 2024, 03:57:29 pm
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Added a chuff pot!
https://www.youtube.com/watch?v=kz30_qU6EHg
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Here it is, a bit louder, from modifications, and an added pull cord.
https://www.youtube.com/watch?v=Yzffk8hjrJ0
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Are you running that with steam from your Jensen #35? How do keep to engine of the #35 from
going around. There's no shut off valve for it. If you're letting that run too it's using
steam.
[attachimg=1]
A simple zip tie! And because St Paul Steam re-machined the steam chest, it is perfectly flush with no steam leaks.
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Are you running that with steam from your Jensen #35? How do keep to engine of the #35 from
going around. There's no shut off valve for it. If you're letting that run too it's using
steam.
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Pretty nice set-up there Travis!
You've asked for our thoughts, so here are a couple from me.
Shortening up your steam line from the boiler to the engine should help a lot in getting everything to run a bit dryer and not spitting so much condensate.
You can up the boiler pressure on a Jensen rather easily by simply doubling the spring on the safety valve, or stretching the one that is on it, or replacing it with a stiffer spring. Any of these techniques do need to be approached with some reasonable caution, but as long as done in a reasonable manner should provide for increased boiler pressure potential. I generally like my Jensen boilers to operate around 25 - 30 psi, but anything over 20 and I'll likely not mess with it.
Were it me, I'd mount the whistle inside of the elbow on your steam line, that is between the steam valve and the elbow, so that you have one less leverage arm that might turn under pressure of pulling the whistle valve and possibly leak steam.
Looks to me like you are having great fun playing with steam here ....... good on ya!!!
Problem solved on the leverage! Also made some adjustments as stated and it’s much louder now! [attachimg=1]
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How do you loosen the the metal O ring off the Jensen safety valve? They do not come off no matter what way I turn it.
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If you were just running air then you should be good upto 20-25 max.
But you're running steam and that's a whole lot different with the heat.
Then IMO, I wouldn't go over 15psi. That might be why you haven't had
any problems yet. Brass tubing is the way to go. ;)
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The hose you are using will likely slip off at 30 PSI, even with the cable ties.
This fuel line is far better with steam. at 50-60 PSI it will start ballooning.
https://www.chiefaircraft.com/radio-control/engine-accessories/fuel-tubing/dub-197.html?gad_source=1&gclid=CjwKCAjwkuqvBhAQEiwA65XxQOX_8D8vb5zeriXayhXAYrSBH5YNY6QAznX549UT1obowqMR-TWc1xoC_YMQAvD_BwE
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Pretty nice set-up there Travis!
You've asked for our thoughts, so here are a couple from me.
Shortening up your steam line from the boiler to the engine should help a lot in getting everything to run a bit dryer and not spitting so much condensate.
You can up the boiler pressure on a Jensen rather easily by simply doubling the spring on the safety valve, or stretching the one that is on it, or replacing it with a stiffer spring. Any of these techniques do need to be approached with some reasonable caution, but as long as done in a reasonable manner should provide for increased boiler pressure potential. I generally like my Jensen boilers to operate around 25 - 30 psi, but anything over 20 and I'll likely not mess with it.
Were it me, I'd mount the whistle inside of the elbow on your steam line, that is between the steam valve and the elbow, so that you have one less leverage arm that might turn under pressure of pulling the whistle valve and possibly leak steam.
Looks to me like you are having great fun playing with steam here ....... good on ya!!!
Interesting point on making the pressure higher on the boiler. Can these rubber hoses handle 30psi?
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Pretty nice set-up there Travis!
You've asked for our thoughts, so here are a couple from me.
Shortening up your steam line from the boiler to the engine should help a lot in getting everything to run a bit dryer and not spitting so much condensate.
You can up the boiler pressure on a Jensen rather easily by simply doubling the spring on the safety valve, or stretching the one that is on it, or replacing it with a stiffer spring. Any of these techniques do need to be approached with some reasonable caution, but as long as done in a reasonable manner should provide for increased boiler pressure potential. I generally like my Jensen boilers to operate around 25 - 30 psi, but anything over 20 and I'll likely not mess with it.
Were it me, I'd mount the whistle inside of the elbow on your steam line, that is between the steam valve and the elbow, so that you have one less leverage arm that might turn under pressure of pulling the whistle valve and possibly leak steam.
Looks to me like you are having great fun playing with steam here ....... good on ya!!!
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Just got my PM research whistle with all the fittings needed. It looks great albeit a bit over scale. It does whistle but it isn’t loud. The Jensen boiler only puts out approximately 15psi. Pretty sure it’s designed for 30psi or above.. but it whistles. Love the brass. Thinking about shoving some rubber O rings into the whistle to shorten it which may allow Lower pressure to be louder.
None the less, enjoy the video, and let me
Know your thoughts!
[attachimg=1]
https://www.youtube.com/watch?v=i9eS4JmI5rI