What happened here?

[JohnnyBoxer]

Picked this thread up on ABR Forum, looks like a WC GS

Apparently happened on the M8, in Scotland (allegedly and unverified).............but don't know if it just collapsed or is after a crash?

Read this thread

http://www.adventurebikerider.com/forum/27-technical/499336-another-bm-bites-the-dust-.html

 

[a2zworks]

Not surprised I might say, I just couldn't believe when I saw a youtube of someone taking a GSW for a test ride/review and the bike rolled off the side stand and the head cover cracked and lost oil.
These things must be so thin!
Next time I see a GSW I'll give the head cover a knuckle knock test to see how it compares with my slow R1150GS.

 

[POL382]

From his entry on FB.

Scary moment on the m8 just outside Glasgow this evening. 70mph, middle lane cruising along and bang!
Terminal final drive failure.

Managed to keep control and get to the hard shoulder to avoid being mown down.

Never seen anything like it before. Anyone had this problem?

2013 R1200GSW, 6200 miles, serviced and MOT'd by BMW motorrad East Kilbride on the 10th February 2016.

 

[crotchrocket]

What could have caused it? A seized component in the final drive?

 

[JohnnyBoxer]

From his entry on FB.

Scary moment on the m8 just outside Glasgow this evening. 70mph, middle lane cruising along and bang!
Terminal final drive failure.

Managed to keep control and get to the hard shoulder to avoid being mown down.

Never seen anything like it before. Anyone had this problem?

2013 R1200GSW, 6200 miles, serviced and MOT'd by BMW motorrad East Kilbride on the 10th February 2016.

Got a link to the FB thread?

 

[crotchrocket]

Got a link to the FB thread?

Its a couple of posts down on this page... https://www.facebook.com/groups/2611900422/

 

[cookie]

what that needs is an arm on each side.

that would sort most of the other issues that BMW have had with final drives for the past couple of decades too

 

[JohnnyBoxer]

what that needs is an arm on each side.

that would sort most of the other issues that BMW have had with final drives for the past couple of decades too

Too much weight and unsexy...............BMW left that behind in 1979

 

[Deleted account 211025001]

Too much weight and unsexy...............BMW left that behind in 1979

Indeed.



Andres

 

[JohnnyBoxer]

No wonder Nutty's selling quick and buying a 1190R

 

[cookie]

Too much weight and unsexy...............BMW left that behind in 1979

...and a lot of good it did them. ok they did sell a lot of bikes, but constant problems since.

re: sexy
new Ducati Multi Enduro has a trad swing arm.

 

[David Nimrod]

BMW left that behind in 1979

...and a lot of good it did them. ok they did sell a lot of bikes, but constant problems since.

Hence the fact that the only BMW I'm keeping is a 1979 R100RT

 

[JohnnyBoxer]

re: sexy
new Ducati Multi Enduro has a trad swing arm.

Now that is sexier

 

[Deleted account 220319001]

I'm considering buying a new gs tomorrow, won't lie, this has given me some major concern.

 

[Deleted account 211025001]

No wonder Nutty's selling quick and buying a 1190R

Don't even go there

Anyway, he'd hate it, they're shit bikes.

Andres

 

[Steptoe]

Too much weight and unsexy...............BMW left that behind in 1979

1984 actually.

 

[Engineer]

I wonder if it was a drive shaft fail that flailed around and split the casing???????

 

[Lord Snooty]

I'm considering buying a new gs tomorrow, won't lie, this has given me some major concern.

I heard a plane crashed once so you'd best not ever consider flying again Put it into perspective man!

 

[cookie]

I wonder if it was a drive shaft fail that flailed around and split the casing???????

my first thought was that something broke off internally and got between the crown and pinion, but it could be stress from something like a heavy landing?

 

[Packer]

So back to the thread title question.

1) A foreign body in the FD got trapped between the pinion gear and crown gear?

2) Pinion shaft bearing failed and the pinion gear rode up the teeth on the crown wheel until the pressure fractured the casting?