Engines > From Kits/Castings

Stuart Progress Build Thread (Lathe Only)

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2E26:
I alluded to these in another thread but I'm going to kick off the build for the Progress. Some of the operations are going to be tricky without a mill but I'm going to make do and hopefully show some people how to go without.

Pictures of what's in the kit for those who haven't done this kit but are interested. I took them out of their shrink wrap and put them in a plastic box. That should protect from the elements until I can file them down and apply some primer.

The iron castings almost all have sprue material included. Some of it is for work holding and some is just more material that needs to be removed. That's more than what I'm used to with PM Research castings.

I'll have a video up before too long. I got a milling slide today and I'm hopeful to get some progress on the Progress (bad dad, no beer)

Jon

2E26:
I know I've said I'm making a video of this build. I do intend to start when I actually perform machining operations on the castings. I'm not going to subject viewers to videos of fettling and painting.

That being said, I spent an hour today grinding away foundry flash and scrubbing surface rust off the castings. After that, I hit everything with some light gray primer. I saw a build thread of a 10V where the builder sprayed all of the castings with terra-cotta red primer before machining. I like the way that looked so I am going to emulate that.

Lessons learned - don't cut the sprues off with a hacksaw. The box bed had two sprues and one of them was cut too close to the casting body. I was able to blend the damage into the rest of the body with a grinding stone, but a mistake is still a mistake.

I'll be back with some actual progress before too long. Like others who build this engine, I'll be starting with the box bed.

Jon

Jo:
The castings look much better for a clean up  :)

Its ok to cut sprues off with a hacksaw just don't get too close to the bit you want to keep. Cleaning up the castings will also gives you your first indications of the quality of the iron in the castings in case there might be "hard bits" (caused by cooling too fast) on the surface. If you do find any dinks or hollows it gives you an opportunity to fill them before you start the machining.

Jo

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