Sunday, January 6, 2013

2nd gear not working

My 2nd gear has been unusable since the end of summer.

We took apart the gearbox yesterday and inspected all the gears. The Nimbus gearbox is different than the other gear boxes we are used to.
From what we can guess, the center notch is 2nd gear. When in 2nd gear, the the 2nd gear is no touching the 1st or 3rd gears. If it cannot stay in 2nd gear, then it must be the ball in the 2nd gear notch. The spring behind it must not be strong enough to keep it in gear. I need stronger spring?


I also wonder how much, if any the gearbox requires. With no drain plug, you would think it is a dry gearbox. I cannot find information on this. If it is a dry gearbox, then perhaps it cannot stay in 2nd because there was oil in the gearbox?

I need a proper manual in English!

There is wear on the 3rd gear. You can see the rounding around the holes. They are becoming a bit oval. Since 1st and 3rd are strong, I don't think this is a problem.


You can also see (in the top image) that the tips of the 2nd gear that engage into the 3rd gear are slightly rounded around the top corners. Not sure if this will cause a problem.

I have many questions for the my contact in Denmark.




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