I got some time in the shop this weekend so it's time for another update. The first thing I did was redo the crank shaft. I drilled the broken crank disk for the crank pin and shaft
Then I faced off and shouldered a piece of drill rod
Then I pressed the shaft into the crank disk
Then I faced off the crank disk to width
Then I pressed in the crank pin
Next I started on the cylinder by facing the blank
Then I drilled the blank out enough to use a boring bar
Then I bored out the cylinder
It turns out that I didn't have a mandril that would fit the bore so I had to make one. I started by turning it to a slip fit on the cylinder
Then I tap drilled it.
And tapped it 1/8 npt
Then it went into the ER-32 collet block and slit
Here is the finished mandril with a 1/8 npt plug screwed in
Then the whole assembly went into the collet chuck.
Then I turned the cylinder to the final profile. Lite cuts were the order of the day
Then it was over to the mill to spot face the port
Then it was drilled and tapped
The rest of the operations will be completed when I set up the rotary table.
Then I started on the cylinder cover.
The blank was faced and the step was cut
Then it was parted to length.
And the other side was faced
Next it was time to work on the piston.
The blank was faced and turned to diameter...... The second time. I turned the blank undersized on my first attempt.
Then the oil grooves were cut
Then it was over to the mill where the cross pin hole was drilled
Then the piston was slit and parted off
Next I started the connecting rod by squaring up the bar
After layout I used my laser center to pick up my bottom hole
The hole was drilled. The process was repeated for the piston side.
Then it was over to the vise for bending
The part was taken over to the die filer for fileing
I will leave you with a family shot
Until next time
Tony