Folks have heard of the problems I am having with a 1930 Model A Ford starter motor. I found, ordered and received all (but one) of the items I needed for the repair. That thing in the title photo is nowhere to be found on the Devil-net. So, I made it. Here is a series of photos, with a brief narrative, on how that was done.
I found the right diameter and properly threaded screw for the job, but the head is too large to fit into the space required, there is no smooth pin and it is too long.
I added a 1/4 inch wide nut (proper thickness for the final fit) as my gauge.
I put the screw head into a drill and began to shape the smooth shaft. I did this with files, grinding stone (for a second drill) and a metal cutting wheel (also for a drill). Slow speed for the drills acted like a lathe for the shaping of the smooth shaft.
I checked the smooth shaft for fit. Once I got the diameter of the smooth shaft correct, I inserted the smooth end of the screw into the drill.
I then cut off the cupped head of the screw with a hack saw. I placed the screw (still inserted into the nut) in a vice to cut the screwdriver slot.
I used a Dremel tool and diamond cutting wheel to make the cut.
You can see from the photo that the bendix has a barrier (a washer compressed by C-clamps in the photo) that prevents the screw from being inserted. A large headed screw would inhibit the washer from seating properly and misalign the inner spring. The spring is used to retract the bendix gear teeth from the fly wheel teeth after the car engine starts.
Yeah, everything went smoothly, so far.
The bendix is now attached to the armiture and the starter is reassembled. The starter is remounted to the car. I will post the results before this day is through.
Hold your horses, Captain is out, but back soon.