How's yer driveshaft

Anything you like about motorbikes
maccecht
Posts: 220
Joined: Sat May 30, 2020 1:45 pm
Has thanked: 24 times
Been thanked: 159 times

How's yer driveshaft

Post by maccecht »

So BMW have told USA owners of certain models their driveshafts could be a bit meh! Anyone in UK been notified of this small problem?
https://www.advrider.com/bmw-will-repla ... iveshafts/
User avatar
Skub
Posts: 12346
Joined: Mon Mar 16, 2020 5:32 pm
Location: Norn Iron
Has thanked: 10045 times
Been thanked: 10360 times

Re: How's yer driveshaft

Post by Skub »

Fugly bikes and shit build too. :lol:
"Be kind to past versions of yourself that didn't know what you know now."
Walt Whitman
https://soundcloud.com/skub1955
Gregor
Posts: 617
Joined: Wed Mar 18, 2020 10:20 am
Location: Kent
Has thanked: 1346 times
Been thanked: 894 times

Re: How's yer driveshaft

Post by Gregor »

What’s the actual problem, shafts stripping their splines through lack of grease or something else ?
maccecht
Posts: 220
Joined: Sat May 30, 2020 1:45 pm
Has thanked: 24 times
Been thanked: 159 times

Re: How's yer driveshaft

Post by maccecht »

Drive shafts breaking. Know if one lad 57 plate GS whose shaft snapped smashed the swingarm and spat him off at 80 mph he survived with missing skin and broken fingers
User avatar
Horse
Posts: 11830
Joined: Sun Mar 15, 2020 11:30 am
Location: Always sunny southern England
Has thanked: 6379 times
Been thanked: 5206 times

Re: How's yer driveshaft

Post by Horse »

Skub wrote: Sun Dec 08, 2024 1:41 pm Fugly bikes and shit build too. :lol:
Been that way for decades.

At a dealer training event when BMW were about to launch the F650 'Funduro', salesmen were asked to write potential selling points on a board.

One wrote "Legendary Italian build quality"

The really funny bit is that they had lower warranty claims than the German bikes :D
Even bland can be a type of character :wave:
User avatar
KungFooBob
Posts: 14481
Joined: Sat Mar 14, 2020 1:04 pm
Location: The content of this post is not AI generated.
Has thanked: 543 times
Been thanked: 7697 times

Re: How's yer driveshaft

Post by KungFooBob »

I had a recall letter ages ago.

It included a new page for the manual with a new service interval for replacing the 'cardan'.

I thinks it's every 60k km and BMW will do it for free for the life of the bike, there's also a new inspection interval of 20k km
User avatar
Horse
Posts: 11830
Joined: Sun Mar 15, 2020 11:30 am
Location: Always sunny southern England
Has thanked: 6379 times
Been thanked: 5206 times

Re: How's yer driveshaft

Post by Horse »

KungFooBob wrote: Sun Dec 08, 2024 4:36 pm
I thinks it's every 20k (but it might be 40k, can't remember) miles and BMW will do it for free for the life of the bike.
Wow - that's a huge cost to them. But probably cheaper than a raft of injury and death claims ...
Even bland can be a type of character :wave:
User avatar
KungFooBob
Posts: 14481
Joined: Sat Mar 14, 2020 1:04 pm
Location: The content of this post is not AI generated.
Has thanked: 543 times
Been thanked: 7697 times

Re: How's yer driveshaft

Post by KungFooBob »

It edited before you posted :)

I found a photo I took of the letter.
Attachments
FB_IMG_1733676113582.jpg
FB_IMG_1733676113582.jpg (104.78 KiB) Viewed 942 times
User avatar
Horse
Posts: 11830
Joined: Sun Mar 15, 2020 11:30 am
Location: Always sunny southern England
Has thanked: 6379 times
Been thanked: 5206 times

Re: How's yer driveshaft

Post by Horse »

Nice earner for dealerships. Can't see independent servicing workshops offering to do the same for free ;)
Even bland can be a type of character :wave:
User avatar
Dodgy69
Posts: 5558
Joined: Mon Mar 16, 2020 6:36 pm
Location: Shrewsbury
Has thanked: 1773 times
Been thanked: 2134 times

Re: How's yer driveshaft

Post by Dodgy69 »

Better check my mileage, can't be far off that. 👍
Yamaha rocket 3
Dickyboy
Posts: 625
Joined: Sat Dec 26, 2020 4:48 pm
Has thanked: 495 times
Been thanked: 346 times

Re: How's yer driveshaft

Post by Dickyboy »

Even more glad I ditched the GS for a Biffer, but was quite impressed with the service you get from BMW.
Scootabout
Posts: 594
Joined: Thu Jun 18, 2020 10:41 pm
Has thanked: 488 times
Been thanked: 313 times

Re: How's yer driveshaft

Post by Scootabout »

Gregor wrote: Sun Dec 08, 2024 1:55 pm What’s the actual problem, shafts stripping their splines through lack of grease or something else ?
It reassures me a bit that the Guzzi shaft is lubricated by oil. But then of course it can leak.
Gregor
Posts: 617
Joined: Wed Mar 18, 2020 10:20 am
Location: Kent
Has thanked: 1346 times
Been thanked: 894 times

Re: How's yer driveshaft

Post by Gregor »

maccecht wrote: Sun Dec 08, 2024 3:00 pm Drive shafts breaking. Know if one lad 57 plate GS whose shaft snapped smashed the swingarm and spat him off at 80 mph he survived with missing skin and broken fingers
:o

From what I can gather reading threads on ADVrider It sounds like the universal joints themselves are failing/ water ingress causing corrosion/ sudden extreme changes in load are causing failures.

I thought UJs were supposed to have grease nipples maybe that’s the issue :P
User avatar
KungFooBob
Posts: 14481
Joined: Sat Mar 14, 2020 1:04 pm
Location: The content of this post is not AI generated.
Has thanked: 543 times
Been thanked: 7697 times

Re: How's yer driveshaft

Post by KungFooBob »

Originally BMW were saying it was pressure build up inside the shaft casings. As service they were drilling the cardan case and fitting a one way valve.

Which always seemed odd to me as the rubber gators where it hinges are hardly air tight.
Dickyboy
Posts: 625
Joined: Sat Dec 26, 2020 4:48 pm
Has thanked: 495 times
Been thanked: 346 times

Re: How's yer driveshaft

Post by Dickyboy »

I thought UJs were supposed to have grease nipples maybe that’s the issue
Yup, the UJ on my Guzzi V10 had grease nipples but the later Carc models didn't 🤔
A_morti
Posts: 772
Joined: Mon May 25, 2020 8:35 am
Location: Malta
Has thanked: 320 times
Been thanked: 572 times

Re: How's yer driveshaft

Post by A_morti »

Horse wrote: Sun Dec 08, 2024 3:08 pm
Skub wrote: Sun Dec 08, 2024 1:41 pm Fugly bikes and shit build too. :lol:
Been that way for decades.

At a dealer training event when BMW were about to launch the F650 'Funduro', salesmen were asked to write potential selling points on a board.

One wrote "Legendary Italian build quality"

The really funny bit is that they had lower warranty claims than the German bikes :D
The build quality of my g650gs wasn't that bad, but the engineering was bullshit. Imagine selling a bike to ride on the Geländerstraßen, with only a metal washer as a seal on the steering bearings and felt washers as seals on the swingarm bearings. And that's before we get to the electrics.
User avatar
Horse
Posts: 11830
Joined: Sun Mar 15, 2020 11:30 am
Location: Always sunny southern England
Has thanked: 6379 times
Been thanked: 5206 times

Re: How's yer driveshaft

Post by Horse »

The /6 or /7 airheads were basically the final Beemers to live up to the quality expectations.

Standard equipment included a tyre pump, lock, puncture repair kit and first aid kit.

But they cost twice the price of the Japanese 'equivalent'.
Even bland can be a type of character :wave:
Mr. Dazzle
Posts: 14206
Joined: Mon Mar 16, 2020 7:57 pm
Location: Milton Keynes
Has thanked: 2599 times
Been thanked: 6375 times

Re: How's yer driveshaft

Post by Mr. Dazzle »

Gregor wrote: Sun Dec 08, 2024 6:35 pm I thought UJs were supposed to have grease nipples maybe that’s the issue :P
BMW manage to make millions (literally) of cars with cardan shafts sans nipple just fine. ;)
User avatar
Horse
Posts: 11830
Joined: Sun Mar 15, 2020 11:30 am
Location: Always sunny southern England
Has thanked: 6379 times
Been thanked: 5206 times

Re: How's yer driveshaft

Post by Horse »

Mr. Dazzle wrote: Mon Dec 09, 2024 7:08 am
Gregor wrote: Sun Dec 08, 2024 6:35 pm I thought UJs were supposed to have grease nipples maybe that’s the issue :P
BMW manage to make millions (literally) of cars with cardan shafts sans nipple just fine. ;)
And, to be fair, it's a long time since cars have had chain final drive :D
Even bland can be a type of character :wave:
User avatar
Taipan
Posts: 14375
Joined: Sat Mar 14, 2020 1:48 pm
Location: Essex Riviera!
Has thanked: 16359 times
Been thanked: 10480 times

Re: How's yer driveshaft

Post by Taipan »

BMW seem to have gone downhill in a lot of ways since the advent of the R850/1100s. The paints started peeling and there have been multiple drivetrain issues, from collapsing bevel drive bearings to the plague of final drive oil seals leting go and killing clutches. The first of the 1200s had some gearbox issues too.

But despite this, they're still lots of BMWs out there with starship mileages and BMWs and Harleys are probably the only two bikes that have half decent residuals with high mileages?