This week I notched the cylinder skirts so that the forged aluminum rods can clear them during rotation of the crankshaft. I used a Bridgeport milling machine and a radiused end mill to do the job. I followed up with a small grinding stone on a Dremel too to chamfer the notch and eliminate any rough edges that might harm the piston.
The depth of the notch ended up being 8 mm with a width of 28 mm. This allowed the forged aluminum connecting rods to clear the cylinder skirt by a little over 2 mm.
Here’s this week’s video showing the whole process.
Keep on hackin…
I found this signal tracer at an antique festival here in North Carolina. The festival is a yearly event and there always someone there with some vintage electronics. As I was walking around the event this piece caught my attention. The seller wanted $20 for it, I offered $15 and we struck a deal. It’s in great condition and it still works quite well.
EICO (Electronic Instrument Corporation) was established in New York City in 1945 by radio repair business owner Harry Ashley to manufacture electronic test equipment in kit form. Their first product was an audible signal tracer.
In my research on this piece I found some good info.
Info page on radiomuseum.org
Vintage signal tracer info
This week’s video.
Keep on hackin…
It’s official. I’m engaged! I asked Lisa to marry me and she said YES!
I recently acquired some forged aluminum connecting rods and got to work on installing them in teh CB750 engine. There’s a few things to do to to the rods and bearings first though as you’ll see in the video.
This week I decided to finish tensioning the spokes, mount the tires on the wheels and install them on the bike along with the kick stand and center stand. Now I have a platform to look at and figure out just where I’ll be taking this build.