Jensen 85 - SteamWorks Improved

Had this little project in mine for a while, but wasn't sure as to how I would execute it. Turns out I like the offset stack, since it gives the engine a bit of symmetry that it lacked before. It would not have fit directly behind the boiler without modifications to the base plate, which probably would have looked ugly, knowing my lack of real talent for metal work.

The exhaust line is a brass tube, annealed and carefully bent, then treated with Brass Black to give it that burnt look. It has an ID that exceeds that of the exhaust port, so there should be minimal restriction to flow.
After running two boilers of water the condensation was still nowhere near the level of the inlet hole on the stack, which would seem to support my belief that placing the line where it is allows heat from the burner to keep much of the steam from condensing before it hits the stack.

Category:

Howto & Style

Tags:

• jensen
• 85
• steam
• engine
• evaporator

[brandonkr1]

nice runner. how did you get the tube to stay on the exhaust hole on the engine? did you glue it? im just wondering because im interested in doing that to mine.

[MisterOcclusion]

I used a tube with an ID equal to (or slightly larger than) the ID of the exhaust port on the engine, so as not to restrict the flow. I took the engine apart and carefully drilled out the exhaust port to the outside diameter of the tubing to a depth of about half way through the steam chest. I soldered the pipe into the port, just so it would stay put and not leak.

[MisterOcclusion]

Superglue might work too, if it's already a tight fit. The pipe fits into the chimney loosely, since I did not feel the need to solder it. Excess water can also leak out of the hole rather than burbling and spitting out the top. It's not hard to do. Just don't use too big of a pipe, or you will run into the other steam passages in the steam chest (been there and done it).

[kane100574]

Curious, how long this little engine can run continuous? What kind of maintenance... I have always wanted one of these!! :)

[MrTrainfanatic]

Awesome. ; )

[brandonkr1]

all right thanks.

[randomguy9898]

cute little engine.

[steamyman]

oooooooh. the brass looks niiiiiiice! very good ,Mr O.