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MT/Tricycle - front-end wobble -need your help bad
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Posted by tstex on April 03, 2006 at 13:43:35 from (220.127.116.11):
Need some help on this one to determine the "real problem" and what you guys have determined when fixing this "front-end wobble".
Here are some observations and questions:
1. Observations: took the worm gear top cover off, then removed the upper shaft with the two pins, then removed the upper support, thus exposing the coupling to the lower shaft w/ rolled-pin.
- then examined the two tapered pins in the upper shaft, one was loose, the other not, and both looked very polished and smooth, but no grooves or indentations.
- then put the upper shaft back into the coupling and there was play in there.
- then put the upper shaft into the top support to check for play in the upper bushings; there was some to little, but not near as much as the coupling.
- in a sitting position, pulled on one of the tires and tried pulling and pushing, did not move the pedastal at all [pretty tight]
- then removed the rolled pin from the coupling and lower shaft spline; the pin was very tight. However, could not remove the coupling from the lower shaft spline: tapped it with a hammer multiple times, but no luck...put the pin back in.
-If anyone has replaced the coupling before M844T, how could you tell if the splines were not worn enough that the coupling would make the difference?
-Has anyone ever replaced the coupling and not got an improvement because the splines were worn or somewhere else has too much play? Did you get a resolution?
-Has anyone ever replaced the bushings in the upper support that the upper steering shaft resides? Did you replace them or Deere? Did the replacement help remove the play? If so, were you satisfied
-when you removed the pin out of the coupling and the lower steering shaft, did the coupling come off the spline easily? If my coupling would not budge, is there something i can do to free it up? Heat?
- when you removed that coupling, can you turn it upside down to determine if the upper shaft spline has less play to determine if the coupling and/or the spline is more worn, or both?
Sorry for the long post, but the wobble is such a pain. I have almost completed the entire restoration of the MT before paint, and this is the last thing...all of your posts, suggestions and experience is immensely appreciated.
I will post back with any questions.
thank you in advance,
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