OK Eric , I couldn’t sleep with out measuring it …
The smoke unit is 29.80 mm wide X 49.80 mm long and 25.00 mm thick .
The funnel is 3.75mm from the front edge, 10.mm wide and 26.00 mm long and 4.75 mm tall
The port/hole is 7mm id
from the front edge of unit to edge of port/hole is 5.35mm
This is as close as I could get.
The box is the same size as the Train-Li Proline unit I’m using. The only difference is that funnel. The little round funnel on mine fits within the recess that is cast into the boiler. With that large funnel, then whole unit would have to sit about 5 mm lower in the engine, but that’s fine, since the bottom bracket is 8 mm thick. This could just be reduced to 3 mm to compensate.
I’m busy the next few days, but let me see what I can come up with.
Eric does your Hudson have two stacks like you see in my video ?
I noticed your piece is only allowing for one stack.
See the video below …(https://www.largescalecentral.com/externals/tinymce/plugins/emoticons/img/smiley-yell.gif)
Sean McGillicuddy said:
Eric does your Hudson have two stacks like you see in my video ?
I noticed your piece is only allowing for one stack.
Come on Sean just cut the funnel off and epoxy a tube in. If you don’t like it you just get another top (there around) and change it back.
Richard
And if you were real nice? and offered some compensation he might make a top.
Interesting, your TAS unit smoked more than the Zimo unit. I think you may want to tweak the settings in your Zimo system. Zimo at one time bought Aristo units and modified them. Notice the square funnel exactly the same as the Aristo. I understand later they made their own copies.
I’m surprised you did not take the TAS unit and drive that from the Zimo, bypassing the TAS electronics.
Greg
Richard said:
Come on Sean just cut the funnel off and epoxy a tube in. If you don’t like it you just get another top (there around) and change it back.
Richard
And if you were real nice? and offered some compensation he might make a top.
That is what I was thinking , but maybe he wants to play with another design. I wonder what would happy if the hole was enlarged some …
Either is fine with me…
The second thing … new top …interesting…
Sean McGillicuddy said:
Sean McGillicuddy said:
Eric does your Hudson have two stacks like you see in my video ?
I noticed your piece is only allowing for one stack.
I only see one stack on Eric’s loco, apparently they made different smoke boxes / stack(s) per road name and practice.
edit; I looked closer and saw the lead stack.
Sorry for the delay. I‘m running trains today at Rockin’ Ribfest in NH.
My Hudson does have two stacks, but I didn’t bother with the smaller one. I actually made an adapter that attempted to steal some smoke and direct it to the small stack, but it didn’t really work. I’d have to move the smoke unit forward to get it under both stacks, or move it back and run tubes. It wasn’t that important to me, so I just blocked it off.
FYI 2 stacks?
From a Rapido site…
“At the front was the exhaust stack, while hidden behind in the shroud was the whistle. Although the casting appeared to be a double stack, all Hudsons had a single stack.”
Seems as though your smoke should be from the front Stack(https://www.largescalecentral.com/externals/tinymce/plugins/emoticons/img/smiley-undecided.gif)
edit; shrouds were on streamlined units.
Seems so, you can see “dark smoke” from the “front” stack, and you can see white clouds of steam from the “rear” stack, indicating a whistle.
Good catch.
Cannot embed the video to save my life
Greg
When I embedded, the reply box had a large shaded blue area and an icon in the middle. Once I posted it displayed as it should.
That’s confusing, because there is clearly a whistle farther back on the boiler.
In any case, the opening to that front stack is maybe 2 mm. Not much smoke is going to be coming out of there.
Eric that front stack is clear not the whistle but a exhaust for the cylinders look a little after 19 min.
Richard
Well, I thought the big plume of clean white steam was a whistle, but perhaps it is just a release valve… in any case, as I look at it, the dark smoke comes from the front stack.
so at 2:05, I see something confusing, coming from the front stack is a lot of white steam, and you can see chuff “pulses” of darker smoke…
So what would explain this?
2:42 clearly shows the smaller tube is the smoke stack from the firebox…
2:53 shows a ddifferent stack arrangement, but perhaps a clue, the big stack has smoke, the smaller one has water and maybe some steam bubbling out…
At 16:48 you can see a “dual stack” version with the smoke coming from the front, and steam from the rear at the same time.
In any case, prettty interesting, and bears further investigation… bottom line, I would probably take the same route as Eric… or maybe a bit from both, but want to learn more.
Greg
p.s. After more research, the J1e’s had a booster engine, and I believe the smaller stack is the booster stack, did some more research, and actually came back the usa trains site: http://www.usatrains.com/usatrainshudson.html … click on the link that mentions the exhaust stack…
See the bump on the smoke box just forward of the stacks at about 10 o’clock?
They had an internal feed water heater and vented steam through the stack arrangement.
Richard said:
Come on Sean just cut the funnel off and epoxy a tube in. If you don’t like it you just get another top (there around) and change it back.
Richard
And if you were real nice? and offered some compensation he might make a top.
Richard … ( he knows some things )(http://www.largescalecentral.com/externals/tinymce/plugins/emoticons/img/smiley-wink.gif) what would happen if say I , opened up the port were the smoke escapes , will that improve or decrease smoke output ?
Although not asked, I’d say you will not get any more smoke output, the output from the Zimo looks as much as the stock USAT. I think you need to tweak your heater settings to get more smoke, I do not think you are limited by the openings.
Looking at the video closely, there is a trickle of smoke from the booster stack.
Greg
Greg Your input is always welcome .
That’s what I thought , I was just wondering if I couldn’t find a brass tube that size , if it would effect the output…
