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Help please: DriveShaft V7 850 2021

Izzy rider

Izzy rider

Just got it firing!
Joined
Nov 12, 2021
Messages
6
Location
USA
Anyone can tell me what’s this please? It’s under the drive shaft. What are the possibilities of why it’s leaking? Thank you!


B8414F0D 51FB 4F42 9D46 E4289B583FB5
 
Hi,

I have a V7 III a couple of years older and mine has NO hole there...
Don't think any of the oil in the final drive should / would be getting in there...
You might want to check the Oil Level
 
My 2010 V7 Cafe does not have that hole.

But fluid coming from it may be an indication that the input shaft seal on your final drive unit is leaking.

Does the oily residue smell like gear oil?

Jason
 
How long have you had it ?
How far to the nearest dealer ?
( Something less Generic than you being in North America - lets us make recommendations... on where you might be able to take the bike. )
 
I just looked under my 2021 V7E5, and, yep, there's a hole there. On my bike, there's no buildup around the hole, it's just a neat drilling in the flat casting. There is no trace of oil or water in or around the hole. I probed it with a toothpick, and it does seem to go through the casting to the shaft. There is no mention or photo of that area of the swing-arm in the service manual.
 

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Hi.

Given the location of this oil relief hole, the oil can come from 2 different locations.

First, the Output shaft seal on the clutch side of the driveshaft housing, meaning that it will be gearbox oil.

Clutch


Or second, oil from the pinion seal on the final drive (transmission) side, which in this case, it will be transmission Hypoid Gear Oil.

Transmission Transmission 2

In either event, the repair of this type of oil leak is beyond the scope and tools of most home mechanics.

I would recommend checking your oil levels in the gearbox and transmission (final drive), and ensuring that you are not overfilled in either location.

Next, I would schedule and appointment with your local dealer to determine the precise source of the oil.

This repair should still be covered under the initial factory warranty if it is still in force. Otherwise, It will be a fairly expensive repair. You may be able to obtain some "goodwill" from Moto Guzzi if you r warranty has expired, but not if you have caused the leak by overfilling the fluids to the point of the increased pressure having cause the seal to blow out.

Good luck either way.

I hope this helps. 👍 👌 🙏
 
Last edited:
It seems to me that the two possible oil sources are the shifting gearbox and the bevel gearbox. For the V7E5, they both use the same oil, SAE 75W-140 - API GL5.
 
sib said:
It seems to me that the two possible oil sources are the shifting gearbox and the bevel gearbox. For the V7E5, they both use the same oil, SAE 75W-140 - API GL5.
Click to expand...

A typo. I have replaced “engine” with gearbox. Thank you.
 
Seepage at seam of rear drive means the seal or 2 orings are letting oil get by. Undo 4 nuts, slide off of swingarm & change them, simple. These have 2 ujoints on driveshaft. New stuff.
 
Thank you all for the feedback. I was finally able to drop it off at the dealership. I’m waiting for their response. I appreciate you all.
 
scottmastrocinque said:
Hi.

Given the location of this oil relief hole, the oil can come from 2 different locations.

First, the Output shaft seal on the clutch side of the driveshaft housing, meaning that it will be gearbox oil.

View attachment 25242


Or second, oil from the pinion seal on the final drive (transmission) side, which in this case, it will be transmission Hypoid Gear Oil.

View attachment 25243View attachment 25244

In either event, the repair of this type of oil leak is beyond the scope and tools of most home mechanics.

I would recommend checking your oil levels in the gearbox and transmission (final drive), and ensuring that you are not overfilled in either location.

Next, I would schedule and appointment with your local dealer to determine the precise source of the oil.

This repair should still be covered under the initial factory warranty if it is still in force. Otherwise, It will be a fairly expensive repair. You may be able to obtain some "goodwill" from Moto Guzzi if you r warranty has expired, but not if you have caused the leak by overfilling the fluids to the point of the increased pressure having cause the seal to blow out.

Good luck either way.

I hope this helps. 👍 👌 🙏
Click to expand...
This will be very helpful when I run out of warranty and it will come back. Thank you for this professional information.
 
Update: dealership is trying to contact Moto Guzzi and asking them where the leak is coming from and how to fix it. It’s been a little more than a week since they contacted Moto Guzzi and hasn’t had any response yet. Dealer keep insisting that Moto Guzzi is a small company and they do take too long to respond. My dealership is in San Francisco Munroe Motors. Now I know why people who rides a motorcycle has multiple bike. It’s depressing without one.
 
Izzy rider said:
Update: dealership is trying to contact Moto Guzzi and asking them where the leak is coming from and how to fix it. It’s been a little more than a week since they contacted Moto Guzzi and hasn’t had any response yet. Dealer keep insisting that Moto Guzzi is a small company and they do take too long to respond. My dealership is in San Francisco Munroe Motors. Now I know why people who rides a motorcycle has multiple bike. It’s depressing without one.
Click to expand...
If you don't get satisfactory results from Munroe, try Desmoto Sport on 17th. Desmoto is the best for Euro bikes in SF. They figured out some things on my Triumph Tiger that the dealer could only scratch their head over. Not saying that Munroe Motors is bad, mind you, just that Desmoto has a group of very experienced mechanics.
 
One other tip: there are red colored gear oils, I think BMW branded is red. You could drain either the transmission or final drive and refill with red gear oil, then clean out the area where it is leaking. Then if the new leaking oil is colored or not colored, you will know the origin of the leak.
 
Guzzi Surfer said:
If you don't get satisfactory results from Munroe, try Desmoto Sport on 17th. Desmoto is the best for Euro bikes in SF. They figured out some things on my Triumph Tiger that the dealer could only scratch their head over. Not saying that Munroe Motors is bad, mind you, just that Desmoto has a group of very experienced mechanics.
Click to expand...
Thanks for this feedback. I’m not sure if they do warranty service since it’s not on Moto Guzzi website. But if they can’t fix it then I’ll consider that option.
 
Guzzi Surfer said:
One other tip: there are red colored gear oils, I think BMW branded is red. You could drain either the transmission or final drive and refill with red gear oil, then clean out the area where it is leaking. Then if the new leaking oil is colored or not colored, you will know the origin of the leak.
Click to expand...
Wow, this is good. Thanks. I’ll keep this in mind.
 
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