Gearbox woes

Discuss mechanical problems here.

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ndevans
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Re: Gearbox woes

Postby ndevans » Mon Apr 29, 2019 10:52 pm

ianmack wrote:
Mon Apr 29, 2019 7:43 am
I certainly wouldn’t use that first gear again, those teeth are disintegrating. I had a tooth come off a motorcycle gearbox a while ago and the gearbox seized completely, always an unpleasant experience especially on a bike.

I have some spare gears and might have one.
PM sent
cheers N
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Neil D Evans
http://www.flickr.com/photos/minor946/c ... 814791043/

biomed32uk
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Re: Gearbox woes

Postby biomed32uk » Thu May 02, 2019 8:48 pm

A stout tie wrap is all you need, and as said do it inside a plastic bag. make sure to line the gear up to the hub in the correct place. Otherwise you won't be able to get 2nd gear and the whole lot has to come apart again.

ndevans
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Re: Gearbox woes

Postby ndevans » Thu May 02, 2019 9:10 pm

So this arrived today.
IMG_20190502_205818~2.jpg
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I rang the people who supply these to Minisport, a company called Guesswork. They confirmed that it is suitable for a Minor 1098 1st gear hub. At £30 it's not cheap, but I reckon if I try the cable tie method I stand a good chance of losing the balls and springs.
It certainly works ok. It's best to assemble the springs in the hub first, then place it with the springs closest to the bottom, in the tool. You then need a small screwdriver to push the spring in, whilst forcing the ball with your thumb over it in the recess in the tool.
When all 3 are in, you place the 1st gear wheel deep flange side down, over the hub. You have to ensure that the recessed tooth on the inner ring is aligned with the detent plunger in the hub.
Then place the whole thing in a clear plastic bag, and twist the tool clockwise. The balls and springs are now fully compressed. You then turn the assembly upside down, so the tool is on the top, and, still in the bag, give it a sharp tap on the floor. The hub should then slide out of the tool and over the balls and springs. Try carefully taking the tool off, still inside the bag, and the springs should still be contained inside the hub/gear assembly.
cheers N
___________________________________________________________________________________

Neil D Evans
http://www.flickr.com/photos/minor946/c ... 814791043/

ndevans
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Posts: 562
Joined: Fri Mar 03, 2006 11:56 am
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Re: Gearbox woes

Postby ndevans » Fri May 03, 2019 11:26 pm

Tonight, I 'ave mostly been puttin me gearbox back together.
IMG_20190503_224708~2.jpg
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cheers N
___________________________________________________________________________________

Neil D Evans
http://www.flickr.com/photos/minor946/c ... 814791043/

ndevans
Minor Addict
Posts: 562
Joined: Fri Mar 03, 2006 11:56 am
MMOC Member: Yes

Re: Gearbox woes

Postby ndevans » Sat May 04, 2019 4:44 pm

More progress, going smoothly currently *touches wood*!
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cheers N
___________________________________________________________________________________

Neil D Evans
http://www.flickr.com/photos/minor946/c ... 814791043/


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