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Author Topic: Gearbox Surgery  (Read 1419 times)

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Offline BrettS

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Re: Gearbox Surgery
« Reply #7 on: May 17, 2018, 06:07:29 AM »
No, I’ll find a parts drawing and check the manual. Looked back on your work and your pics are gone.

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Offline Jonesy :-)

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Re: Gearbox Surgery
« Reply #6 on: May 16, 2018, 08:11:05 PM »
Have you stripped and laid out on the bench as per the manual exploded drawing, that helped me to spot what  what was wrong with the RH re-hab gearbox
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78 E Stock
78 E Stockish with spoked wheels
80 G spoked wheels and other subtle mods
81 RH problem child. Gone & forgotten
97 TRX 850
94 Yam 350 Big Bear 4 wheeler
?? Yam TTR 125 with milk crate. (RIP the Posty)

Offline BrettS

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Re: Gearbox Surgery
« Reply #5 on: May 16, 2018, 07:30:03 PM »
The gears left also look normal to me, thought the gear on the right was worn but I believe that’s how it should be?

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Offline BrettS

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Re: Gearbox Surgery
« Reply #4 on: May 16, 2018, 07:14:28 PM »
Thought you might say that :)
I’ll take more if you want a closer look.
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Offline BrettS

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Re: Gearbox Surgery
« Reply #3 on: May 16, 2018, 07:08:49 PM »

« Last Edit: May 16, 2018, 07:13:48 PM by BrettS »
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Offline Jonesy :-)

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Re: Gearbox Surgery
« Reply #2 on: May 16, 2018, 06:47:36 PM »
Got any pics of the offending gears?
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78 E Stock
78 E Stockish with spoked wheels
80 G spoked wheels and other subtle mods
81 RH problem child. Gone & forgotten
97 TRX 850
94 Yam 350 Big Bear 4 wheeler
?? Yam TTR 125 with milk crate. (RIP the Posty)

Offline BrettS

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Gearbox Surgery
« Reply #1 on: May 16, 2018, 04:56:30 PM »
I have the gears out of the police motor and still can’t see any reason for the issues I was having. 1st and 3rd were very noisy (1st more so) and 5th had a strange backlash or slip.
Maybe the issue is somewhere else. In other gearboxes a worn input shaft bearing can make first gear noisy and not so much the others. Maybe it is something like that.
Not a big deal because I only want 2nd and 5th out of this gearbox for the other motor that is slipping in 2nd.
I’m thinking I’ll just reuse 2nd and 5th and hope this 5th has nothing to do with the issue???
I would rather understand what was going on though so I don’t transfer the issue over.
« Last Edit: May 16, 2018, 07:16:55 PM by BrettS »
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