This is my first engine build so please be gentle! I'm learning as i go. Anyway here goes.
Marking out parts to cut:
Here I'm cutting some parts out:
Side plates cut:
Side plates taped together with double sided tape and milled to shape:
Drilling sideplates prior to boring for crankshaft bushings. Holes for bolting to backplate have already been drilled.
Here I'm boring holes for crankshaft bushings. Got really creative with tool post, four jaw chuck and home ground hss boring bit:
Here's sideplates with boring finished:
Test fitting bronze bushings:
Front plate finished with cylinder hole bored. Before boring, I drilled 1/4" hole and using a 1/4" short length of rod stuck in a scrap block milled the semicircle on the top of the plate. The plate was carefully rotated by hand. Due to the hole not being perfectly centered, I had to do some hand filing to get as symmetrical as possible. I later milled off .030" off one side to make the hole centered. Back plate not shown is just a rectangular piecer of 1/4" 6061.
After drilling all holes and tapping 4-40, I have an engine "block".
This is the current state of the build. I wont be doing much cleaning up or blinging until engine is finished. Stay tuned for more updates.
Jenaro
Marking out parts to cut:
Here I'm cutting some parts out:
Side plates cut:
Side plates taped together with double sided tape and milled to shape:
Drilling sideplates prior to boring for crankshaft bushings. Holes for bolting to backplate have already been drilled.
Here I'm boring holes for crankshaft bushings. Got really creative with tool post, four jaw chuck and home ground hss boring bit:
Here's sideplates with boring finished:
Test fitting bronze bushings:
Front plate finished with cylinder hole bored. Before boring, I drilled 1/4" hole and using a 1/4" short length of rod stuck in a scrap block milled the semicircle on the top of the plate. The plate was carefully rotated by hand. Due to the hole not being perfectly centered, I had to do some hand filing to get as symmetrical as possible. I later milled off .030" off one side to make the hole centered. Back plate not shown is just a rectangular piecer of 1/4" 6061.
After drilling all holes and tapping 4-40, I have an engine "block".
This is the current state of the build. I wont be doing much cleaning up or blinging until engine is finished. Stay tuned for more updates.
Jenaro