In the photo showing the rings after snapping you see the rings sitting on the top of the vice's jaws. The chisel is mounted in the chuck used for drilling. To snap the ring I placed the ring over the dimple you see under the chisel and then using the quill feeding handle I brought the chisel down on the ring with light pressure until it snapped. The dimple is optional, the ring will snap without it but will take a little more pressure.Can I ask that you describe the breaking with more detail e.g. how was the ring presented to the sharp edge of the chisel?
Excellent work Dnalot, great detailed posting, can't wait to see her run!Some simple parts here but very necessary. The pistons are made off aluminum and were turned as a group. After turning they were drilled for the small end of the connecting rod and a small flat was cut where the hole went through the piston.
After parting off the pistons were faced top and bottom. From there they went to the mill to be hollowed out.
The wrist pins are made from drill rod. I used a brass rivet to provide a soft end to the pins.
And then one by one I assembled the con rods with pistons attached to the crankshaft (No rings) and installed the cylinder. And then the crankshaft was rotated to check for binding and clearance. All was good.
At this point I will go back and give each part of the engine a final fitting and detail before assembling the parts with gaskets and sealants. This needs to be done before I can make and fit the rocker arms and push rods.
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