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UJ ON ITS' WAY??

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Brian UK View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Brian UK Quote  Post ReplyReply Direct Link To This Post Posted: 01 Nov 2015 at 21:03
The normal content of the bevel drive is in the region of 200ml. Even if this emptied completely and all the contents found their way up and into the gearbox, it would make very little difference to the gearbox oil level. And the chances of that happening is virtually nil anyway.
There is no seal on the input shaft to the bevel drive, so oil from there "could" work it's way along the drive shaft. The "seal" on the carrier bearing is just a dust shield, not an oil seal so oil could easily work its way past that.
However, the void inside the swingarm is so big that the total contents of the bevel drive could never reach a sufficient depth to submerge the gearbox output seal and stand any chance of any oil going past it the "wrong way". Even with the suspension at full compression.
Brian.

Better 5 minutes late in this world than years early in the next.
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Mike H View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Mike H Quote  Post ReplyReply Direct Link To This Post Posted: 01 Nov 2015 at 21:50
I concur!

"Chicken nuggets don't dance on a Tuesday."
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Dave P. View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Dave P. Quote  Post ReplyReply Direct Link To This Post Posted: 01 Nov 2015 at 23:14
The quantity of oil in the bevel box of the 850GT with the deep sump housing is 360cc.I don't know if that makes a difference.Sorry to contradict but that info' comes from Greg' Bender and Guzziology.
TO LIVE OUTSIDE THE LAW YOU MUST BE HONEST.

1971 V7 Special. 1972 850GT.
1970 T120 Bonnie. 2009 500 Bullet.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote ranton_rambler Quote  Post ReplyReply Direct Link To This Post Posted: 02 Nov 2015 at 05:36
Yes, 360cc is correct on later loops. Mine transferred 110cc into the gearbox. Believe it or not!
I reckon it must push it forward through the bearings faster than it can drain back, and gradually fills up the swingarm on a long run.
Now I've turned the pinion carrier and lined up the slots it's fine, although I don't know if there will be any long term issues with the bevel box having been run with low oil level.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote saultrader Quote  Post ReplyReply Direct Link To This Post Posted: 03 Nov 2015 at 11:26
Dave P...Whitedog..who's next? You can run but you can't hide...
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Dave P. View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Dave P. Quote  Post ReplyReply Direct Link To This Post Posted: 03 Nov 2015 at 12:46
Check it now Phil,before you get the new barrels and pistons.It could be you next
TO LIVE OUTSIDE THE LAW YOU MUST BE HONEST.

1971 V7 Special. 1972 850GT.
1970 T120 Bonnie. 2009 500 Bullet.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote saultrader Quote  Post ReplyReply Direct Link To This Post Posted: 03 Nov 2015 at 13:32
Wise words Dave but I'm never going to check anything ever again. I would have happily ridden my GT all year blissfully unaware of the damage being done by the slivers of chromium chewing their way through my internals. I may have got several thousand trouble free miles before Armageddon loomed..It's only a one lap race they say...
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Dave P. View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Dave P. Quote  Post ReplyReply Direct Link To This Post Posted: 03 Nov 2015 at 13:35
Have you checked the oil on the V700 yet ???
TO LIVE OUTSIDE THE LAW YOU MUST BE HONEST.

1971 V7 Special. 1972 850GT.
1970 T120 Bonnie. 2009 500 Bullet.
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