Time to finish out the last few pieces of this build. Next up is the crankshaft . I got the crank reasonably centered and cleaned up the boss and the back face of the part.
Then the part was flipped and the front faced and the outer rim turned true.
The shaft hole was then drilled and reamed.
The crank was placed in a collet block and moved to the mill. The hole for the crank pin was drilled and tapped.
Next the shaft was loctited into the crank.
The next assembly was the piston. I started by turning down and threading both ends of the piston rods.
Next the piston itself was turned down and the grooves for throngs turned.
Then the center was drilled out, counterbored and parted off.
The last piece of the piston assembly was the connector. A piece of brass rod was squared up on 2 sides.
Then the crank pin hole was drilled and reamed.
The part was flipped 90 degrees and the hole for the piston rod was drilled and tapped.
That completes the parts for the piston assembly. They will be put together with the engine. Now on to the last part, the flywheel.
I started by getting the part as true as possible in the three jaw. Then I faced the rim and the center boss. Next I used a blind boring bar to clean up the inside edges.
Then the part was flipped and clamped on the machined surface. The other side was faced and bored then the outer diameter was cleaned up and taken to size.
The shaft hole was then drilled and bored.
Then over to the mill where the setscrew hole was drilled and tapped.
That completes the the machining for this kit. Here is a final family shot.
I assembled the engine and gave it a test run. Even with no gaskets or rings it ran like a champ.
Now I have to pull it all apart and paint it (something I hate). The next time you see it will be in the showcase.
Tony
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