After some weeks where shop hours were dedicated to automotive chores, I got some time in to get onto the project backlog. Unfortunately my photo site, pbase.com, has been down for the past 3 days, so I won't be able to share visuals until they come back up.
The first task was to finish the mini tubing bender that had been languishing as an incomplete box-o-parts for several weeks. I made the last few minor parts, cobbled it together, and was able to bend 4 lengths of 1/4" copper tubing that are to serve as the connections from the spool valve to the engine. I also made the two small flanges for the input and exhaust tubes. And as the last part needing fabrication, I made the valve handle.
Now I pulled out the silver solder "kit". First, I needed to plug the two holes in the top and bottom of the valve body. I turned a couple of small brass rounds with a flange to ensure they stayed put during soldering. The solder job went smoothly, and I then milled the plugs flat to the top and bottom of the valve.
Then, like Bogs, I used the engine itself as a jig to hold the air tubes in place while I solders them to the valve. One all four were soldered, I proceeded to solder the other ends to the flanges. Here I had a couple of problems, in that some gaps remain around the tubes. Seems the solder stuck to the tubes rather than falling into the cracks.
So now I need some advice on how to seal the gaps. Should I just apply some more flux and some pieces of solder and reapply heat, or is there more to it?