Hello
Crank Shaft: When I received this kit, I almost sent it back. The crank was badly warped, IMO. I started with the intension of turning between centers, drilled the centers, mounted it, didnt look good, measured it. I felt that I would not have enough material to cleanly get the connecting rod journal fully into good metal, without offsetting the axel centers to start with. Now, the Crank, like other parts is shorter than finish dimensions called out, so cutting off the ends & starting over is out ??? My decision was to shim one jaw on the 3J chuck .040 and skim cut the free end to good metal, well it worked. On my crank the factory, caster, ground the sprue down to far on the throw, if I had turned CC the rod journal would have been interrupted .007, Just something to look for.
Overhang ? taking .002 each pass, took hours!
Connecting Rod Throw: I had already made the Eccentric Hub, not bad, turned the diameters and pushed it over with two chuck wrenches, one on each side, .100, trued face with DTI, tap it in with small soft face hammer, drill & bore. I laid out the throw center with the height gauge, checked it three times, all ok. Clamp in 4Jaw work it over .437, according to my indicator setup, true it every way I can think of. One last check, put the laser in the tailstock & see what it says, hmmm, about .011 short. Decisions, decisions, more torque or RPM, getting old, went with torque. I moved it out, and realigned it. I like the Laser, I have read good & bad about them. Once dialed in it works well for me.
I took the lens off the laser so you can see the dot, the dot can be as fine as frogs hair.
Paul
