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Well after all this time I have wanted to wether my P.R.R. K-4. I had been wanting to do this for a while.

I have been like most people afraid to do this. I was woried about screwing it up. The outher night I took the plunge.

 I pulled it all appart blackened the side rods and wethered the bottom. I felt good about that an felt it looked ok.

 Then I figered went this far now. I might is well do the body got that done an felt that went well to.

 got it back together and tackeled the tender.

 Well here are the results John will (gunnerman) told me to post a pic of my job.

Picture 187

Picture 188

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  • Picture 187
  • Picture 188
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That's exactly why many people who run weathered engines, don't use smoke. The oil spitting out can ruin a nice weathering job Even with everything working properly, it will still spit out unburned oil leaving blotches all over the engine. You don't notice it on new engines because they are clean and shiny anyway.
 
Originally Posted by hah3:

Jim Thank you. You are right after running it for a couple hours the smoke units left a oil type film in spots.Looks like the gasket leaks a

from the smoke unit. I have to figer out what going on there.

 

 

Maybe Hot Water would have an answer for this:

 

From what I have read, and the few times I have see AFT 610, ATF/SP 4449, UP 844 and UP 3985, it seems that a properly maintained steam engine does not produce big amounts of smoke unless they need to add more fule to the firebox, like on a grade. I wonder what percent of the time a steam engine accually produces the massive plumes of smoke we think about.

 

Smoke units:  PW, I'll run it or else you will lose the unit.  But they usually don't "spit" like the newer ones.

 

Mosern era:  Forgetaboutit.  Takes too long to clean the boilers!

Originally Posted by Laidoffsick:
That's exactly why many people who run weathered engines, don't use smoke. The oil spitting out can ruin a nice weathering job Even with everything working properly, it will still spit out unburned oil leaving blotches all over the engine. You don't notice it on new engines because they are clean and shiny anyway.
 
Originally Posted by hah3:

Jim Thank you. You are right after running it for a couple hours the smoke units left a oil type film in spots.Looks like the gasket leaks a

from the smoke unit. I have to figer out what going on there.

 

 

Its not from "spitting", and an o-ring will probably not make a difference.

 

The "smoke" is actually vaporized mineral oil droplets, they settle or bleed out of the openings in the shell like the handrail mounts etc.

 

This is pretty much typical and it is not as noticable on steam locomotive black as well as being a bit easier to wipe off.

 

Pretty much the "nature of the beast" if you want smoking locos, but an issue if you want to weather them.

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