Legacy Texas Smoke Unit

that happens on my texas when ever the smoke stack stops smoking due to a bubble which it develops much more that my other legacy engines.  I think this new smoke unit deal with ramp high then down needs more development.  not real happy with it.  just leave the smoke units like they used to be.

Looks like your fan is drawing smoke back through the intake.
Is the fan polarity correct?

Yes  Nothing has changed.  The smoke is being forced through to the other chamber by the main unit and out the intake of the steam cylinder fan.  I obviously have a poor seal between units.  Anyone know the best place to look?

 

The rubber gaskets between the fan and heating chamber are in place in well aligned so I don't think it's there.  The only place I can think of is either over the divider or under.

Could the wicking be blocking the fan outlet, or smoke outlet?

Checked all wicking.  None is impeding the outlet.  It smokes rather well from the stack too. 

 

Interestingly enough when I added fluid last evening while testing, I had less blow back than before.  Leads me to believe a bit that some of this is coming under the divider and when fluid is in place it actually is blocking it.

That's the thing that baffling me. The chamber divider has a opening at the bottom for fluid to wick/fill from the other, so mine does not have a seal, can you reverse the connection to the fan and see what happens.

So here is an update.

 

I re-wicked the unit using the pads from Lionel.  I made sure one was across the opening down below the divider.  I then used the remaining pads to fill both chambers.  The divider was under no pressure to seat.

 

There is now minimal smoke coming back through the cylinder fan. 

 

This unit even on low though gets hot and produces a lot of smoke.  Been running on low and have to turn it off.  Works much better though as far as "leakage".