Leaking Final Drive Output Seal

[yoyo]

Hi, I'm on a tour in Scotland and I've got a leak from the final drive output seal, It started off being wet under the housing but now it's leaving a bit of oil on the wheel and sidewall of the tyre.

It's a 2018 GSA, I tried calling Edinburgh and Glasgow Motorrad in the hope they'd have a look, but neither had a seal. As I don't know how much I'm losing, I'm just putting in 50ml each morning (it would be easier if it was a like a car diff with regards to filling)

When I get back on Sunday I need to change the seal but I'm struggling to fi d any decent information, other than, prize off the cover, use to screws to pull out the old seal and drive in a new one. Do I need to remove the final drive, or can it be done with it attached to the swing arm?

If special tools are needed, it'll have to go to a local independent. There are a couple near Swansea I trust.

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[MartinK]

Callum at Central Customs in Edinburgh. Don't be put off by the company name, Callum is ex-motorrad senior technician
Top guy

Motorcycle Repair | Central Customs | Edinburgh

Central Customs is a motorcycle service and repair workshop, situated near Edinburgh and catering to all makes and models. We specialise in custom motorcycle design, restoration and fabrication work.

www.centralcustoms.co.uk

I don't take my GS anywhere else now....
Altjo of Steve Traherne were closer , Callum may have a competitor

 

[Decompressing]

Hi, I'm on a tour in Scotland and I've got a leak from the final drive output seal, It started off being wet under the housing but now it's leaving a bit of oil on the wheel and sidewall of the tyre.

It's a 2018 GSA, I tried calling Edinburgh and Glasgow Motorrad in the hope they'd have a look, but neither had a seal. As I don't know how much I'm losing, I'm just putting in 50ml each morning (it would be easier if it was a like a car diff with regards to filling)

When I get back on Sunday I need to change the seal but I'm struggling to fi d any decent information, other than, prize off the cover, use to screws to pull out the old seal and drive in a new one. Do I need to remove the final drive, or can it be done with it attached to the swing arm?

If special tools are needed, it'll have to go to a local independent. There are a couple near Swansea I trust.

Sent from my SM-S921B using Tapatalk

the thing I'd be wary of is if the seal lets go big time and you get a load of oil dumped in one hit (which I had on a 1150 once). The fact that you're seeing it leaking onto the tyre-wall would make me extremely nervous about riding it much further without getting it done.

Bit off a bastard it happening on a Friday of course and these things never normally happen at a convenient time...

 

[Bem]

I would caution against being too enthusiastic about topping up every day without reference to the level.
Just as with blood, a little oil goes a long way.
I would only consider topping up when there was clearly a lack as evidenced by a splurge over the wheel tyre and final drive..

 

[2023_R1250GS_Trophy_Edition]

Mine just started leaking in the same place. BMW have opted to replace the driveshaft due to the unknown amount of wear with a reduced oil level. My back brake pads were soaked and useless and it was the lack of hill hold that alerted me to the problem. A warranty job, zero fuss or quibble by BMW. (25k Kilometres, '23 bike, Road use only)

 

[yoyo]

I should have replied to this thread with an update.

I removed the final drive and it to Big Al in Ammanford (he's good). I'd not noticed how notchy it was, it was very tight for a nearly half a turn, then nice and smooth for the rest so it was swapped for a silky smooth used one.

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