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

More progress updates:

Spent a ton of time on the No. 9 engine needing new gaskets. Unfortunately whomever machined this No. 9 did it in a wonky way. 

A port screw on the point cylinder head goes through a steam inlet into the cylinder, thus leaking steam everywhere.

I fixed it through trial and error about 4 times until steam tight.

I also got all the binding freed up and put new cylinder piston rings in the cylinder as well as gland packing and figuring out the binding in the crankshaft. Many hours and weeks on that one.

Anyways, here is the current progress on this No. 9 plant.


One major issue I’m having is the HB4 boiler will get to 75psi and run out steam pretty fast with this engine.  Not sure what’s going on.

With a bonus photo at the bottom of the machinists error. [ Guests cannot view attachments ] [ Guests cannot view attachments ] [ Guests cannot view attachments ]