Hello T Friends !
We have taken apart the rear end of my T and have found lots of issues. One is that there "grind" like marks on each side of the 2 piece axles right below the threads. Picture is below. Can these smoothed out? almost like turning a rotor? And is it worth it? I hate to buy new rear axles if I don't need to. Any safety issues etc? Thanks !
Probably replace. Your picture doesn't show the keyway, but from the looks of the taper I imagine it's pretty well boogered up too. You could, as you say, smooth the taper. But that would make it enough smaller to make too loose a fit in the hub. Maybe one shim would fix that, but I suspect not. Of more concern to me is the wear upstream from the taper. Have you measured the shaft where it rides in the bearing? Measure that and compare it to what Glen says in the book, and look at the pictures he gives you for comparison.
Get a new axle, or axles.
Once you score a axle like that, that is where they snap off.
Also check the wheel hub, as it can ruin a new axle again. Your hub has been running loose.
We have new axles on sale, Bob
The marks on that axle is the result of someone not RETIGHTENING the axle nut after running it. No matter how tight you think the axle nut is after driving 5 or 10 miles the nut will again be LOOSE. You must always tighten the nut once when you put the wheel on then AGAIN after driving the T.
Also Steve Jeff is right the keyway will be enlarged and no matter how tight you do the nut, the wheel will still rotate back and forth on the axle a little. I take many, many rear axle apart and only find 1 axle out of 10 that have a decent key way
Thank you all very much. So Dave if you find only 1 out of 10 that are good on the keyway, are you saying to get new axles? Or does some play mean it's ok?
What does this do to my braking?
NO play between the axle and the hub is acceptable. They are meant to be a tight taper fit.
I just did a Ruckstell for a friend. It broke a axle right in the middle of the spindle. The only way I can think of an axle breaking in the middle of a spindle is if the spindle is moving back and forth on the axle. Like Dennis Halpin says THERE MUST BE NO MOVEMENT. You must tighten the axle nut a second time no matter what someone else tells you.
I am not saying to get a new axle. In fact I have never bought a new axle. I always manage to find a good used one somewhere. If I can wiggle a key sideways in the keyway I will turn the key 1/4 and tap it in with a small hammer. If the key still rocks, I take it out mark it along the side with a chisel and try it again if the key still rocks then the axle is toast in my book and makes a good marker or I use them for irrigation purposes.
I make it a habit that if after I tap the key with a hammer in the keyway I can lift the key out, then I do the above. If I can
still lift the key out of the keyway with my fingers then the axle is toast.
On another case we were on Colorado/Wyoming Tour between Steamboat Springs and Walden, Co. when we came upon a Centerdoor that had lost a wheel. On inspection we found that the axle had broken about 1/4 inch in from the nut. Again I would think that the only way that could happen was if the spindle was working back and fortunately I had an axle replacement with me so we could fasten it to the backing plate and load him on the trailer.