glennpm
Another Old Biker Nut!
I like your perspective TooMany. All of this checking that I've been doing has at least had the positive result of me understanding the transmission a lot more than I had. I loved the service bulletin of "finger printing" the shift drum on vellum. Don't hear about vellum much these days. It was the common thing in my early draftsman work days.
I also lean toward the engineering solution #2. I driven to figure out what is really wrong here especially being starting work as a mechanic and now an old mechanical engineer. My family and friends know this well of me. My neighbor across when I was with my ex said, "you can fix anything", yeah I told her, except relationships! Option #1 is good when you want fast and sure and someone is paying for labor and parts.
Your conclusion is same as mine I believe. everything is pointing toward the new 5th gear OD. I'm thinking that it is a sloppy over size ID bore on it. I think the vibration gets it walking on the shaft and causes the decoupling.
I just closed the side case and am going to run it for a couple of more months this way. Hey maybe it will heal itself, LOL! I expect that I will split the cases, measure and compare the ID bore to my good original 5th gear. Most likely the old gear will go back in and I may change the gears and go to a 520 chain to get a little higher ratio.
Thanks for all your help. You and a number of others here are super in that regard.
Best,
Glenn
I also lean toward the engineering solution #2. I driven to figure out what is really wrong here especially being starting work as a mechanic and now an old mechanical engineer. My family and friends know this well of me. My neighbor across when I was with my ex said, "you can fix anything", yeah I told her, except relationships! Option #1 is good when you want fast and sure and someone is paying for labor and parts.
Your conclusion is same as mine I believe. everything is pointing toward the new 5th gear OD. I'm thinking that it is a sloppy over size ID bore on it. I think the vibration gets it walking on the shaft and causes the decoupling.
I just closed the side case and am going to run it for a couple of more months this way. Hey maybe it will heal itself, LOL! I expect that I will split the cases, measure and compare the ID bore to my good original 5th gear. Most likely the old gear will go back in and I may change the gears and go to a 520 chain to get a little higher ratio.
Thanks for all your help. You and a number of others here are super in that regard.
Best,
Glenn