48' 726 Berk, Smoke Unit ?

[Anonymous]

Thanks folks,..  Back to my work table.

[Jumijo]

I have a 726 from 1947 and the smoke unit works fine without a spring...i just polish my piston so its nice and smooth and i have no problems...

Hey, hey, watch what you say here. This is a family forum!

Jim 

[lionel2]

I have a 726 from 1947 and the smoke unit works fine without a spring...i just polish my piston so its nice and smooth and i have no problems...i like to keep all the orginal parts to all my trains....if i notice the same problem that you have maybe i might have to put a spring up in there..thanks

[Anonymous]

Jim,

        The spring just sits on top of the piston.  Just lift the smoke unit off the frame, set the spring on top of the piston, and lower the soke unit over it.  BTW, saw your post on the other forum about whiney people, couldn't agree more about some in that group!

     

[Jumijo]

I'm intrigued. Where does the spring go?

Jim 

[Anonymous]

Thanks Jim,

 While dis-assembling, the piston sort of hung up in the smoke unit, which made me think.  I need a little action and reaction taking place here, just as you said, more consistent puff.  I thought I had seen a spring assembly in this exact type unit somewhere, but can't remember,...

 More to come,.. I'm sure

 

[Anonymous]

granpa,

            I always put the spring (2026-44) in there, because without it the puffing of the smoke unit can become very inconsistent.  In short, the spring makes the smoke unit work much better.  I make sure that every berk and turbine I service has the spring installed.

[Anonymous]

Looking at my smoke unit, should there be a spring between the smoke unit and smoke unit piston?  Looking back on a 671, the spring [2026-44] is an option for a more quite operation.

Anybody out there use a spring in their post war 47/48 726 Berks?  I may use one and see how it operates.  Curious as always,.. why this option wasn't listed in 1947 or 1948??

Granpa