Recent content by ee_chris

I decided not to change the gear clearance. The chamfered corners on the gears can be different and visually deceiving, and upon further examination the clearance seems fine. I found an issue when I removed the cover again: There is a round plug in the gearbox housing held in by two set-screws...

Another update: The tach has been re-installed and is working, but I had to work through some issues. When I went to reinstall the tach, I slipped the die-cast neck on the back of the tach through the bore in the tach mounting bracket (EE3486, I think). When I slipped the polished trim ring...

The tach is a Stewart-Warner model 522. Here is a 1931 catalog showing the type. And here is a War Dept. service manual covering many makes of mechanical speedometers and tachometers, including a Stewart-Warner that looks very similar. After making a brass replacement for what I assume to be a...

I just replaced the end-gear (idler?) bearings on my 1946 square-dial 10ee, and I thought I’d post what I did to help anyone needing to do the same. I’ve read about other solutions for replacing the hard-to-source original bearings, like cutting your own snap-ring grooves, but my solution was...

Yes. I was referring to the housing labeled as EE2859 on sheet 142. I don't know what this looks like disassembled, but I don't think there is any connection to the headstock where my mystery hole is. I bent the end 2" of a piece of stiff wire at 90 degrees, and was able to sweep it across...

I am at a loss as to why that cross-hole at the front would be there, or what is threaded into it from the left. The fastener or plug is hidden behind the top of the gearbox. Since the hole almost touches the bottom of the sight-glass bore, it renders that sight glass useless and makes the rear...

After I got the sight-glass cleaned up and reinstalled, I put some oil in, and it ran into the center compartment within a couple of minutes, stopping when the oil was well below the line. I was expecting it to be a little low because the overflow hole at the rear of sight glass bore was drilled...

Here is the bushing pulled into place with my makeshift puller. At first it didn't seem to want to stay put, but after being clamped in position overnight it stayed in place.

I cut the O-ring groove. That cross-section O-ring so close to the edge of the bore didn't want to stay put, but after clamping the bushing in position overnight, the bushing set-screw seemed to hold it in fine when lightly snugged. The set-screw can't be really tight because it distorts the...

When the lathe isn't running, there doesn't appear to be any way for oil to get from the left bearing compartment to the center compartment except by leaking past the big bushing (EE-2888). I'm ignoring the overflow hole being too low as described above. That would only account for oil draining...

I took some pictures that show where the oil level in the left bearing compartment should be (1946 10ee w/3 sight-glasses). I measured 5" from the flat where the top cover attaches down to the center of the left sight-glass bore, which should be the oil level in the bearing compartment. Here is...

Rimcanyon, thanks for the details about disassembly! I do tend to over-engineer things, but I really want to fix it the first time. :) These threads mention the exact same problem (one in a round-dial with different PNs but the same layout): - In this thread Cal Haines suggested the factory...

Hi all, I have the spindle out of my 1946 10ee in order to apply sealant under the EE-2888 bushing and reinstall. Oil was leaking pretty quickly from the left bearing compartment to the center one. Many thanks to everyone who posted info here on spindle removal. I attached a photo of part of...

Viewed from above, the leading and trailing edges of the scraper on a square-dial tach bracket are symmetric and also centered front-to-rear at the side of the bracket well. It would work equally well with the drive gear turning in either direction.

I wasn't aware of that difference in the oiling (round vs. square-dial). A picture of the tach bracket I found in a 1942 round-dial manual shows it doesn't have the scraper on top of the bracket either. Without a scraper, oil carried up on the tach gear probably wouldn't get anywhere useful...