Author Topic: 8V Gearbox  (Read 1691 times)

Bobolink

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8V Gearbox
« on: July 20, 2015, 10:17:38 AM »
Can anyone tell me about the 8V gearboxes?  I'm assuming it's a constant mesh type.  Also, are there any copper alloy metals in the gearbox?  My 2013 Norge manual specifies a GL-4 gear oil.  It's my understanding that GL-4 was intended for transmissions that contain bronze synchros or bushings.  It's also my understanding that modern GL-5 oils (those of the last 15 years) use a buffered sulfur that is not corrosive to copper alloys. 
I'm just curious as to why Moto Guzzi specs a GL-4.

Thanks

canuguzzi

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Re: 8V Gearbox
« Reply #1 on: July 20, 2015, 10:38:42 AM »
Just a guess but maybe it's a holdover spec, like other docs, no need to update it because it worked in the past?

Offline pauldaytona

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Re: 8V Gearbox
« Reply #2 on: July 20, 2015, 03:12:04 PM »
Paul

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