I've been slacking on my posts recently so I think I'll take this opportunity to get caught up to where I am in the build. With the engine completed I need to make the boiler pressure testing fixture. I Started with the water tank. The tank I chose was the one from PMR. I started by sanding the preformed tank bottom until it fit in the tube.
Next I drilled the tank for the outlet fitting.
The fitting was hard soldered into the side so that it wouldn't melt when I soft soldered the tank bottom in.
Then the bottom was soldered in using some of the PMR solder I ordered.
After pickling I accidentally dropped it and bent in one edge. I cleaned it up some but since it's open at the top I'm not to worried about it. Next I turned the base casting to a slip fit into the base of the tank
The bottom was faced off and the mounting feet were drilled.
With that done I deviated from the plans by JB welding the base casting onto the tank. Here it is cured and ready for painting.
Next up is the pump. I will be using a Stuart hand pump for the job.
Here's what comes in the box.
The first thing I did was flatten the base of the pump casting.
Then the mounting holes were drilled.
While I had the casting correctly oriented and centered in the DRO I milled out the handle pivot boss. As you can see the boss is not centered in the casting.
Next I transfer punched the holes to one of my tooling plates.
The tooling plate was drilled and tapped to take the casting.
The casting was mounted to the tooling plate and the area for the valve bore squared up.
Next the bore was step drilled to size.
The top was tapped for the plug.
Next the inlet and outlet ports were step drilled and tapped for 1/4 inch pipe.
I started to do the piston bore but I realized that I didn't have the correct size tapping drill for 5/8 BSP. So the rest of the casting went on hold and I started the caps. The first cap was for the valve bore. The supplied hex was chucked up and profiled on the lathe.
Then the end was threaded.
Next a 3/8 dome was drilled into the cap per the plans.
The cap was then parted off. I started on the cap for the piston bore but I realized that I don't own the required 1.5 inch die stock to thread it 5/8 BSP. That one also went on hold. Next up was the handle. It was trimmed to size and the pivot hole was drilled.
Next I cut the slot further up the handle. The part slipped while milling the slot so I have some cleanup to do on the slot.
I rounded the ends of the handle on the belt sander. With that I called it for the weekend. I'll leave you with a family shot of the pump.
Till next time
Tony
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