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Reply to "Lionel USRA 2-6-6-2 LEGACY Upgrade (9/03/20)"

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

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