glow to steam conversion?
 

you read it right im going to convert an os .18 to steam.
i know it wont be usable for anything, much than a working
model but i have a couple of these lying around and saw
a weed eater on the net converted to steam.

anyway i need someone who knows anything about the timing
of this motor and what i might need to block off to get it going.
it should work, i have released the crankcase pressure and am
working on a flywheel.

if anyone has any knowledge of steam or has done something similar
i would like to hear from you. i had the parts sitting here and am fascinated
with having a motor run on steam. maybe im a nutter? lol.

comments welcomed.
cheers.

motors origin-
Attachment 2238326

motor stripped with proposed flywheel-
http://i735.photobucket.com/albums/w...n/DSCF0157.jpg

RE: glow to steam conversion?
 

Go to Google and put in "Steam Engines". There is a lot of "FREE" plans available which discuss timing and other items. Keep us posted. Flathead

RE: glow to steam conversion?
 

Oh dear!
Low rpm small displacement engines on steam never quite made it beyond the showbench. For simplicity, you could use the CO2 engine principle with a piston operated steam admittance valve. There would be uniflow, and least pre-condensation/after-evaporation problems. Apart from that, it would only require a new head and plumbing, with open crankcase and occasional drop of oil to the rod/shaft.

RE: glow to steam conversion?
 

It can't be that hard. ..... If you put compressed air in the glow plug hole it will spin.

RE: glow to steam conversion?
 

Ya a half of a turn. Pe is on the right track, check out the operation of the small CO2 motors

RE: glow to steam conversion?
 

ok i have found myself that i dont need to block anything.

yes it only spins half a turn. but with a flywheel, and no crankcase
pressure it will return to the top if the air/steam injection is timed.

i have fitted the flywheel and made a timed valve that will get air
or steam in just after TDC. one quick punch of gas. i have also drilled
out a glow plug and just need to work out the plumbing.

after sitting down with this little motor and blowing through a fuel line
into the spark hole ( compressor isnt with me) i reckon it should work.

i appreciate the comments ;)
i will try to search what i can, more info would be great.
cheers again.
monster.

RE: glow to steam conversion?
 

http://www.animatedengines.com/co2.shtml

RE: glow to steam conversion?
 

cool link. that, as far as i know is the bash valve idea. not bad
if you wanna go screwing with the piston. i just drilled and screwed
a dome head screw into the flywheel, and made an arm to hit it from
an old servo horn, works like a charm.

just thinking about the plumbing and getting my compressor back.

heres a little video showing the valve i made moving, before i soldered
on the connections. the quality is poor but if you look closely you can see
the valve moving up an down in that little hole.

http://www.youtube.com/watch?v=uFDjBQ7OkI8

im thinking of drilling out the head and re tapping it for something bigger
were the plug went, but am unsure. some stuff to think about.
cheers.
monster.

RE: glow to steam conversion?
 

A teflon valve in the head, with small stem toward the piston crown for piston operation would be much less complex.