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Old 10-07-2013, 06:53 PM   #11
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Just to update this thread:

George/KBC was nice enough to contact me and provided some articles and information regarding the Pisces II steam engine. The operating pressures and the RPMs that this engine needs are beyond making a simple "hobby' type engine setup. Far more than I care to tackle. I would have thought about attempting to make the engine, but the articles showed few or no measurements for the components for the Pisces II. That's OK. I learned about this interesting, and highly specialized design.

Thanks, George, for all the kind help that you offered.


Frank


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Old 10-08-2013, 10:28 PM   #12
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Originally Posted by BronxFigs View Post
Just to update this thread:

George/KBC was nice enough to contact me and provided some articles and information regarding the Pisces II steam engine. The operating pressures and the RPMs that this engine needs are beyond making a simple "hobby' type engine setup. Far more than I care to tackle. I would have thought about attempting to make the engine, but the articles showed few or no measurements for the components for the Pisces II. That's OK. I learned about this interesting, and highly specialized design.

Thanks, George, for all the kind help that you offered.


Frank
Hi Frank,
It's always a pleasure to try and help out.

George


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Old 10-13-2013, 06:30 PM   #13
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When I built my first engine it was based on the engine Bob designed.
I used his bore and stroke, cam timing and exhaust port opening that was in his Model Engineer article.
Over the years have modified that design with my own little tweeks.
Bob and I are in regular contact swapping ideas to develope more speed.

Paul
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Old 10-13-2013, 09:57 PM   #14
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After seeing the videos, I'd hate to see what happens if the rope breaks.
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Old 10-13-2013, 10:25 PM   #15
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The rope is piano wire with a breaking strain of 600lbs and has to be renewed every year.
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Old 01-28-2014, 05:15 PM   #16
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Does anyone have any knowledge of tungsten disulfide (WS2) based dry film lubricant it looks a good alternative to the moly and graphite pastes that I have been using with moderate success on the flash steamers highly stressed parts.
http://www.powerenhancer.co.uk/produ...film-lubricant

I have ordered some and will probably try it at the next speed attempt.
Paul
How did this work out? Is it a replacement for oil in the steam?

Lohring Miller
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Old 01-28-2014, 06:05 PM   #17
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I did not think it was any better than what I had been using before.
The parts were sprayed with it but it hardly seemed to cover them maybe an industrial version might have been better?
I still used steam oil from the lubricator.
Having burnished the cam and stellite faced follower was successful even when lubrication is limited just using moly or graphite paste.

Paul
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Old 01-30-2014, 02:51 PM   #18
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It looked very promising. I keep hoping there's a replacement for steam oil. The Cyclone engine doesn't use steam oil, but they're very quiet about the details. I think some kind of graphite rings are part of the solution.

Lohring Miller
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Old 01-30-2014, 04:16 PM   #19
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Paul, that boat is amazing! Started me a bit when it took off! Very fast! You should be proud of your accomplishment! Great video!
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Old 01-30-2014, 05:19 PM   #20
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To see a 14cc high speed steam engine at work have a look at this.
http://www.youtube.com/watch?v=CJBG7...eature=mh_lolzAfter many years of frustration and development it is so gratifying to see ones model finally come to fruition.
As the video shows I was like a kid with a new toy when told the speed.
At the moment I am redesigning the valve seat and guide to correct a fault that developed after the second run caused by a worn out seat and stronger valve springs.
August 4th will be a time to prove if it works, as speeds approaching 135mph are a distinct possibility providing there are no mechanical disasters.
My main competitor should be there hopefully his copy of my burners would be a success as he told me things are getting hotter now.

Paul
Awesome !

My wife came in and wanted to know why I was holding my breath while watching that video...

Absolutely stunning. Thanks for sharing.


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