Skip to main content

A customer approached me about converting his older USRA 2-6-6-2 to LEGACY with whistle steam. Lionel has done this engine before so a lot of the parts are “plug and play”  but ill end up having to design some smoke unit parts as usual. Lionel used two separate smoke units. Ill be using the DSMK. Lets see how this goes! 

A72BB6A1-CD34-42A7-8CD2-D8384F25B98E0A0747B3-A321-440C-8182-D036BE03F453

Attachments

Images (2)
  • A72BB6A1-CD34-42A7-8CD2-D8384F25B98E
  • 0A0747B3-A321-440C-8182-D036BE03F453
Last edited by Bruk
Original Post

Replies sorted oldest to newest

Bruk, dumb question for you.  I have a locomotive with dual smoke in for repair.  For the life of me, I can't figure out how to keep smoke from bleeding between the chambers.  The result is, smoke gets forced out the intake holes of the inactive side.  The gasket looks good, and I've stuffed a very solid piece of felt to fill the lower gap and still let fluid soak through, but I still have the issue.

Have you ever had this, and what do you do to correct it?

Soft@gunrunnerjohn posted:

Bruk, dumb question for you.  I have a locomotive with dual smoke in for repair.  For the life of me, I can't figure out how to keep smoke from bleeding between the chambers.  The result is, smoke gets forced out the intake holes of the inactive side.  The gasket looks good, and I've stuffed a very solid piece of felt to fill the lower gap and still let fluid soak through, but I still have the issue.

Have you ever had this, and what do you do to correct it?

John,  I have had similar issues. Judging from what you said the most common issue I found that was the lower gap to transfer fluid between chambers. I have also had to add a soft liquid goo to seal the upper gasket to that divider and smoke unit body. I have had the impeller air pressures leak into each others intakes. I have also “resurfaced” the smoke unit body like a head on a engine . I found many smoke unit tops warped with low spots. I lay a large file flat on the table and work the smoke unit surface till its flat. I usually do this every time I work with a smoke unit Dual or single chambered. 

There will always be a very small leak because of the gaps between the fibers of wicking. But there shouldn't be a large amount if smoke to leak through. 

Last edited by Bruk

Bruk, I was considering my gasket material for the top seal.  The bottom I put some pretty dense felt into it, I figured that should stop most airflow, but obviously I could be wrong.   You can't get the original material, or I'd try that.

I'm going to take a look at the smoke unit top and see if a resurface job might be called for.

This is a truly dumb design, I wonder what genius at Lionel came up with this idea!

 

This is a truly dumb design, I wonder what genius at Lionel came up with this idea!

That's a little harsh...

Well it's been there since the run of PRR #6498 2-10-4 Texas class.  I have that locomotive and repacked the smoke unit once.  Took me a long time to get it where the chuffing unit was forcing smoke from the cylinder steam hole.  Trial and error.  That was 2011 when that was released so they've been around for a while.  I think Mike helped me but I can't remember what the solution was.  @Mikado might know some tricks to help yinz guys.

Last edited by MartyE

This is a truly dumb design, I wonder what genius at Lionel came up with this idea!

Truth be told I think the same. I am in the works on the side of a re-design of Lionels DSMK, I hate how the exhaust holes aren’t centered of the unit but on the sides. 

The funnels that Lionel designed for some engines clog with fluid so easily because due to the sharp change in direction. Such as their legacy Scale Berk and Y6b engine

Hence why my funnels that I designed are not constricted and “flow”. 

Last edited by Bruk
@Bruk posted:

The funnels that Lionel designed for some engines clog with fluid so easily because due to the sharp change in direction. Such as their legacy Scale Berk and Y6b engine

Hence why my funnels that I designed are not constricted and and “flow”. 

I'd love to have a replacement for the JLC Challenger, the funnel on that one is terrible!  They put a flat pancake affair on it and then molded a huge wedge into the diecast shell hoping that would properly direct the smoke.  News flash, it doesn't!

I'd love to have a replacement for the JLC Challenger, the funnel on that one is terrible!  They put a flat pancake affair on it and then molded a huge wedge into the diecast shell hoping that would properly direct the smoke.  News flash, it doesn't!

Agreed. Any early TMCC loco with dual stacks are pretty much the same all around. Ill come up with a fix just for you....eventually! 

@Bruk posted:

Update!!! Part(s) are Here! 

I needed yet another custom designed and 3D Printed smoke funnel. This is what I came up with. I call it the “Universal DSMU Funnel Assembly” made it so I can trim the height of the exhaust as needed. Able to withstand 350°F according to Shapeways. 

Time to start grinding and drilling to fit in the shell. 

Do you know what material they printed those out of? 

Add Reply

Post
OGR Publishing, Inc., 1310 Eastside Centre Ct, Suite 6, Mountain Home, AR 72653
330-757-3020

www.ogaugerr.com
×
×
×
×
Link copied to your clipboard.
×
×