All right! Ruby's had her first steam up. After some adjustments, she did fine.
Observations before the run:
Had to tighten a LOT of bolts - many were not properly snugged up. Air test showed leakage at the cylinder caps on one side - those bolts were not snug. Generally, found many that needed snugging.
After reading most of the threads in regard to the burner, and after operating this one, I have some early conclusions:
This Ruby has the slotted poker. Upon initial exam it was seen to be pressed up tight against the top of boiler tube, so the burner was disassembled and reassembled taking care to get it properly positioned in the boiler tube.
First lights gave me a bit of trouble with flame flow into the smoke box and noisy. Discovered that the gas needle valve is very sensitive, and that the burner needs to wait until the poker is red hot before setting the needle if you want to keep flame out of the smoke box, and its only takes a very low setting for the burner to run properly - if you open it up too much, it'll get noisy - its blowing gas too hard into the boiler tube. Hit the low sweet spot and it burns quiet and clean. All of this means the taper on the needle valve is a bit too short. A longer tapered needle and matching seat would give much better flame control and reduce the chance of turning it up too high and burning up the smoke box. This was done indoors, so we'll how it behaves with a breeze.
Came up to steam in about 5-6 minutes, no more.
A question - how often to clean out the lubricator - there is no water drain as such on these, so you have empty it ? (heavy oils float or sink? Water go to the bottom or sit on top? Time will likely give me that answer I suppose...
If we don't get snow, track test!