Gearbox bearings wiggle a bit

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equipo5
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Joined: Tue Jun 18, 2013 6:43 am
Location: Melbourne Australia

Gearbox bearings wiggle a bit

Post by equipo5 »

The bearing on my 4 speed output shaft, clutch end seems ok. They dont feel gritty or make a sound when spun but I can detect a slight wiggle. Replace?
Also the Fourth Gear has a slight wiggle as well. Maybe 1/2 mm. Is this ok?

Not a very good video but you can see it a bit.
http://vid1289.photobucket.com/albums/b ... jl2vgq.mp4

Background.
Gearbox had a fair bit of metal on the drain plug and the gear box whines (like when you use reverse gear in your car). Gearbox developed oil leak front and back when I unwisely used synthetic oil to quieten it down (which it did incidently). So I took a deep breath and decided to open it up.
On inspection the gears are pitted but all the bearings seem ok except the bearing at the back of the input shaft. It looks older than the others and makes a bit of a sound when spun.



Thanks
1970 R75/5
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SteveD
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Location: Melbourne, Oz.

Re: Gearbox bearings wiggle a bit

Post by SteveD »

It was a bit windy outside today wasn't it!
Cheers, Steve
Victoria, S.E.Oz.


1982 R100RSR100RS supergallery. https://boxerboy81.smugmug.com/R100RS
2006 K1200R.
1994 R1100GS.
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Bamboo812
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Joined: Mon Jan 06, 2014 4:45 pm

Re: Gearbox bearings wiggle a bit

Post by Bamboo812 »

With pitted gears I'd be looking for another good used box.
She'llbe
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Joined: Tue Aug 03, 2010 6:48 pm

Re: Gearbox bearings wiggle a bit

Post by She'llbe »

SteveD wrote:It was a bit windy outside today wasn't it!
sausages on the barbi?
From the desk of the
Mt. Nardi Yacht Club
PO BOX 95
Nimbin, NSW
Australia 2480
02-6689-1234
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SteveD
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Location: Melbourne, Oz.

Re: Gearbox bearings wiggle a bit

Post by SteveD »

What's a used 4 speed sell for in NA?
Cheers, Steve
Victoria, S.E.Oz.


1982 R100RSR100RS supergallery. https://boxerboy81.smugmug.com/R100RS
2006 K1200R.
1994 R1100GS.
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Bamboo812
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Joined: Mon Jan 06, 2014 4:45 pm

Re: Gearbox bearings wiggle a bit

Post by Bamboo812 »

Prices vary, usually between $250 and $450 on ebay. Some very good deals can come down the pike, but buyer beware.
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SteveD
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Location: Melbourne, Oz.

Re: Gearbox bearings wiggle a bit

Post by SteveD »

Bamboo812 wrote:Prices vary, usually between $250 and $450 on ebay. Some very good deals can come down the pike, but buyer beware.
So OZ$550-650, and post...another $100.
Do any good reputation refurbers sell them?
Cheers, Steve
Victoria, S.E.Oz.


1982 R100RSR100RS supergallery. https://boxerboy81.smugmug.com/R100RS
2006 K1200R.
1994 R1100GS.
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Bamboo812
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Re: Gearbox bearings wiggle a bit

Post by Bamboo812 »

Doesn't Motobins sell rebuilt boxes?
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SteveD
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Location: Melbourne, Oz.

Re: Gearbox bearings wiggle a bit

Post by SteveD »

Bamboo812 wrote:Doesn't Motobins sell rebuilt boxes?
UKP 350. For sale to the UK only and only in exchange for the old one. No 4 speeds.
Cheers, Steve
Victoria, S.E.Oz.


1982 R100RSR100RS supergallery. https://boxerboy81.smugmug.com/R100RS
2006 K1200R.
1994 R1100GS.
User avatar
SteveD
Posts: 5039
Joined: Tue Aug 03, 2010 3:29 am
Location: Melbourne, Oz.

Re: Gearbox bearings wiggle a bit

Post by SteveD »

Bamboo812 wrote:Doesn't Motobins sell rebuilt boxes?
UKP 350. For sale to the UK only and only in exchange for the old one. No 4 speeds.

Motorworks is UKP395
Stock of this item varies daily. Please call to check availability and condition

Motorworks charge a refundable UKP90 to have it sent out before the exchange box arrives. No mention of Oz delivery.
Cheers, Steve
Victoria, S.E.Oz.


1982 R100RSR100RS supergallery. https://boxerboy81.smugmug.com/R100RS
2006 K1200R.
1994 R1100GS.
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