Office of Steam Forum for Model & Toy Steam Gas & Hot Air Engines

I haven't documented a new engine build in years, but with this new forum I felt I could do it here for any that want to follow along with the progress. many of you have seen the Jensen J-42 build I finished awhile back...this new engine shall be the companion engine that I had always had in mind when I built the J-42, this plant (J-42R) will have many similarities in that it will also have (2) #35 engine boilers on the single firebox, but will be different in that the cylinders will be facing outward & the axles facing inward joined by 1 flywheel, I'm going to try to mount the axles with ball bearings on this one, I see this as a challenge as the axles will need to be almost perfectly aligned & that's going to require some shimming & plenty of adjusting I imagine. this engine should be a self starter with the ability to tie the engines together & set the timing anywhere I want .
I have started on the firebox.

setup on sheet metal.






let the forming begin




main structure finished




The #35 donor engines

Oh Goodie ... this is going to be great .... Pass the popcorn please!!!   ;c)

Get the box perfectly square isn't easy to do even with a simple box break.

Also how did you cut the nice curves for the cradles?

I don't like build threads, I love them

Thanks Bruce for this thread

You did a real nice job with that improvised brake you have there. Neat video. Great looking fire box, nice corners.

Looking good Bruce 

I was able to make a bit more progress this weekend.

here is the cross-over manifold , it consist of 12 pieces including the pressure gauge



all soldered up & ready to install



test fit of some of the components, the sight gauges currently don't match, but that will be rectified soon.









very 1st running on compressed air.



the heater pan still needs to be fabricated & heaters & cord installed, then work on the plinth to do.