Oil Leak from Final drive / Gear box?

[GSBraggster]

Greetings people I've not long had my R1150 (contrary to my post saying hello I only have the R1150, not the GS version which sort of makes my user name a bit silly but anyway I'm floating off topic)

Basically I've got a 2002 model it's just short of 30000 miles on the clock and I have a small oil leak, now I'm in no way a qualified mechanic and short of knowing which end the petrol goes in and which way the wheels go round I have no idea what most bits are called....

I was hoping to attach a picture that I have on the mobile to show exaclty where I mean but I've been stumped by the 'enter URL box'. So as best as I can describe it, under the final drive system there's a tringular piece that runs diagonally down off the rubber boot, the oil is running a path down there. It's not gushing out and only seems to happen when I've had a long run. The guys at the garage seem to think either the seal has gone in the diff or in the gear box but short of removing the rubber boot they don't know. So basically my question is has anyone else had this problem and if so how was it rectified?

Any advice would be greatfully recieved and I can go back to the garage soundly like I know what I'm talking about!

Thank you kindly
GSBraggster

 

[MattW]

Greetings people I've not long had my R1150 (contrary to my post saying hello I only have the R1150, not the GS version which sort of makes my user name a bit silly but anyway I'm floating off topic)

Basically I've got a 2002 model it's just short of 30000 miles on the clock and I have a small oil leak, now I'm in no way a qualified mechanic and short of knowing which end the petrol goes in and which way the wheels go round I have no idea what most bits are called....

I was hoping to attach a picture that I have on the mobile to show exaclty where I mean but I've been stumped by the 'enter URL box'. So as best as I can describe it, under the final drive system there's a tringular piece that runs diagonally down off the rubber boot, the oil is running a path down there. It's not gushing out and only seems to happen when I've had a long run. The guys at the garage seem to think either the seal has gone in the diff or in the gear box but short of removing the rubber boot they don't know. So basically my question is has anyone else had this problem and if so how was it rectified?

Any advice would be greatfully recieved and I can go back to the garage soundly like I know what I'm talking about!

Thank you kindly
GSBraggster

You'll need to upload your picture to a free photo sharing site such as flickr or picasa etc in order to get the url so you can put in a post. Failing that, transfer the photo off your phone to your pc and add it to your post as an attachment (you may need to resize it first).

With regards to the leak, it's not unusual for BMW's to pass a little from the final drive input seal and those who know, say a small amount is nothing to worry about. Undo the clamp on the boot at the swingarm, pull it away and see what comes out (be ready with a container just in case).

If just a little (say a teaspoon) comes out or if it's just oily water then it's probably nothing to worry about (check and monitor the final drive and gearbox oil levels). If a fair bit comes out then you'll need to find out whether it's the final drive or the gearbox - check the levels using the fill plugs (if you don't know what / where these are, then a Haynes / Clymer manual would probably be a good idea).

Good luck and post what you find

 

[JohnnyBoxer]

Greetings people I've not long had my R1150 (contrary to my post saying hello I only have the R1150, not the GS version which sort of makes my user name a bit silly but anyway I'm floating off topic)

Basically I've got a 2002 model it's just short of 30000 miles on the clock and I have a small oil leak, now I'm in no way a qualified mechanic and short of knowing which end the petrol goes in and which way the wheels go round I have no idea what most bits are called....

I was hoping to attach a picture that I have on the mobile to show exaclty where I mean but I've been stumped by the 'enter URL box'. So as best as I can describe it, under the final drive system there's a tringular piece that runs diagonally down off the rubber boot, the oil is running a path down there. It's not gushing out and only seems to happen when I've had a long run. The guys at the garage seem to think either the seal has gone in the diff or in the gear box but short of removing the rubber boot they don't know. So basically my question is has anyone else had this problem and if so how was it rectified?

Any advice would be greatfully recieved and I can go back to the garage soundly like I know what I'm talking about!

Thank you kindly
GSBraggster

Like this

 

[GSBraggster]

Oh bravo, I love you freakily intelligent biker bods... that's a spot on picture of what i was trying to explain! So how might one rectify it?

 

[GSBraggster]

(if you don't know what / where these are, then a Haynes / Clymer manual would probably be a good idea).

Good luck and post what you find

Hynes manual ordered