Mystery steam engine
- Thread starter chris123
- Start date
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The drains look good, though they seem to have a very short length of the thread.
Yes thats true
I tried with a quarter bolt
It doesnt get any further deeper in
So i did the best possible without recutting
The threads
Chris
The small blanked off one may well be to allow high pressure steam to the LP cylinder, sometimes used just for starting via a "simpling valve"
Can you see the hole from the inside of the LP chest?
Can you see the hole from the inside of the LP chest?
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Hi jason
Its got a sleeve and that sleeve got the hohles inside around is a cavity
Bud if i blow smoke it comes out of the 1/2 inch hohle wich hot threads for a flange
Chris
Actually do you and charles got any smart ideeas for that piston valve?
While im doing the buckle ?
No stress though
Just start asking because have to do it anyway
Chris
Hard to follow the gibberish, Chris. I wish you would put as much effort into posting your questions as Jason and I put into answering them.
The big hole with the copper pipe is the exhaust.
Smart ideas - err, no. Have not done much on the piston valve yet. I think it is going to need a threaded valve rod.
The big hole with the copper pipe is the exhaust.
Smart ideas - err, no. Have not done much on the piston valve yet. I think it is going to need a threaded valve rod.
Im sorry charles and jason
I dont mean it like that
My english is not the best
Thank you gor the clarification charles
The copper pipe is the exhaust
And the 1/2 is the intake
I always assumed otherwise
So that copperpipe would go to the condenser isnt it
Chris
I dont mean it like that
My english is not the best
Thank you gor the clarification charles
The copper pipe is the exhaust
And the 1/2 is the intake
I always assumed otherwise
So that copperpipe would go to the condenser isnt it
Chris
Chris, out of interest, what is your first language?
If the arrangement is as I am thinking, then the copper pipe should connect to the central port in the low pressure slide valve face. Could you check that with a wire or smoke test? If we are right, then yes, it would go to the condenser.
The red diagram looks right.
If the arrangement is as I am thinking, then the copper pipe should connect to the central port in the low pressure slide valve face. Could you check that with a wire or smoke test? If we are right, then yes, it would go to the condenser.
The red diagram looks right.
Thank you charles
Im originally from switzerland and emigrated to australia
Im from the german part in switzerland
So german and french at school
That and having italian mates also
Picking up italian swearing and …
I had to learn english here in sydney about
20 years ago
My wife is thay. We both not native english
Bud our 2 boys
They correcting us …. A lot
Thats why im metric
Bud im really completley sorry
I dont wanna piss anyone off
Chris
If you get time charles could you haveThank you charles
Im originally from switzerland and emigrated to australia
Im from the german part in switzerland
So german and french at school
That and having italian mates also
Picking up italian swearing and …
I had to learn english here in sydney about
20 years ago
My wife is thay. We both not native english
Bud our 2 boys
They correcting us …. A lot
Thats why im metric
Bud im really completley sorry
I dont wanna piss anyone off
Chris
A look at that piston valve please
If you need more details just tell me
Chris
OK. Let's go through the information we have for the design of the piston valve (from the various post numbers) and make sure we agree:
#140: valve rod diameter: Ø 5.9mm
#147: valve chamber bore: Ø 0.728" (18.49mm)
#231: dimensions of the porting holes. The critical ones are the two rows of six holes. These holes are 4.7mm diameter and are centred 46 mm apart (these dimensions are quite accurately 3/16" and 1-13/16")
#240: Jason's interpretation of the porting data
#256: Jason's measurements show the two HP eccentrics are about 110° apart (which means they have 35° advance (90-110/2), which is quite large)
#262: the eccentric throw is 1/4"
#283; the valve chamber bore is Ø 17.85mm (0.703") and the rod is Ø 5.95mm (15/64" almost exactly)
That is sufficient for me to get on with the valve design, and there is just one question: which is the correct bore for the piston valve 18.49mm or 17.85mm?
#140: valve rod diameter: Ø 5.9mm
#147: valve chamber bore: Ø 0.728" (18.49mm)
#231: dimensions of the porting holes. The critical ones are the two rows of six holes. These holes are 4.7mm diameter and are centred 46 mm apart (these dimensions are quite accurately 3/16" and 1-13/16")
#240: Jason's interpretation of the porting data
#256: Jason's measurements show the two HP eccentrics are about 110° apart (which means they have 35° advance (90-110/2), which is quite large)
#262: the eccentric throw is 1/4"
#283; the valve chamber bore is Ø 17.85mm (0.703") and the rod is Ø 5.95mm (15/64" almost exactly)
That is sufficient for me to get on with the valve design, and there is just one question: which is the correct bore for the piston valve 18.49mm or 17.85mm?
Chris, what taps & dies do you have, around 6mm or 1/4" and a little larger?
Thank you charles
Im at work at the moment
As soon i get back i measure the bore again
I think its brass in there i double check
Chris
I got 1/4 32. ( for spark / glow plugs) M6. 0.8 or 1. 1/4 die
M7 maybe. M8 m10. M11 m12 and up
I may got more around 6 need to check
Chris
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