How to check your Final drive bearing - 1100/1150

Fitting the outer oil seal

Thought I'd revive this thread rather than start a new one.

First, thanks again to Steptoe for the helpful advice above.

I sprung a leak from the final drive (R1100RT) on my way down from Glenfinnan yesterday. Have removed the wheel, the disc carrier and inspected the seal. Fecked. The ball race however appears to be fine.

So my question is this: how do I fit the new seal with sufficient care as to ensure no repeat performance? Some grease and judicious use of a hammer and a flat bit of wood?

What sayeth the oracle?
 
Got to check mine Sunday started hearing a noise from the back and a rumble when I spin the back wheel..oil was clean tonight when I drained it but a bit of black crap on drain plug..:rolleyes:
 
Oh Dear ...

I will be revisiting this really helpful thread when my GS arrives back from France in a week or so on the back of an AA van. :mad:

Started bad rumbling about 30 miles outside Luxembourg, made it to hotel and next morning oil from final drive all over the floor, and very bad grinding noise.

But it's my owned from new '02, 83K 1150GSA and it's the first time it has let me down so not complaining too much. Oil was clean when I changed it at 80K, ah well these things are sent to try us...

Paul
 
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stuyvpc said:
I will be revisiting this really helpful thread when my GS arrives back from France in a week or so on the back of an AA van. :mad:
Click to expand...

Only takes an hour to fix at the side of the road, if you've got the bearing and seal. :D
 
Steptoe said:
Only takes an hour to fix at the side of the road, if you've got the bearing and seal. :D
Click to expand...

And therein lies the problem - couldn't convice the wife to ditch the hair straighters ....

Actually BMW dealer in Metz didn't have a bearing and we had to get to Austria within a day or two - not as much fun in a rented Clio. Just hoping it is only the bearing - I'll update the thread when I know more.
 
Steptoe said:
Only takes an hour to fix at the side of the road, if you've got the bearing and seal. :D
Click to expand...

Not with the tools in the standard tool kit.

As far as I can tell You would need the minimum of:

Hammer
Drift
Bearing puller
7mm Allen key
Some heat source
Axle oil.

And then I might have missed something. Who's going to carry that lot in a pannier?

I get carrying the bearing and seal so that a local garage could assist In replacement, but on you own by the roadside.

Not a realistic chance!

Ian :thumb2
 
Ian J Hartley said:
Not with the tools in the standard tool kit.

As far as I can tell You would need the minimum of:

Hammer
Drift
Bearing puller
7mm Allen key
Some heat source
Axle oil.

And then I might have missed something. Who's going to carry that lot in a pannier?

I get carrying the bearing and seal so that a local garage could assist In replacement, but on you own by the roadside.

Not a realistic chance!

Ian :thumb2
Click to expand...

I did a picture "how to" at the side of the road. ;)

I did it in the road outside my house just to prove it could be done, using basic tools and the bikes downpipe as the heat source, and using some oil from the gearbox (then get oil at the nearest palce to you) . . :D
It's not clean or ideal, but it'll get you back on the road until you get home and can do the job properly

I've also guided a GSer through the operation on the other end of a telephone who was in argentina. :comfort

And i think Fanum has done a few "on the road" while in morocco.
 
Steptoe said:
I did a picture "how to" at the side of the road. ;)

I did it in the road outside my house just to prove it could be done, using basic tools and the bikes downpipe as the heat source, and using some oil from the gearbox (then get oil at the nearest palce to you) . . :D
It's not clean or ideal, but it'll get you back on the road until you get home and can do the job properly

I've also guided a GSer through the operation on the other end of a telephone who was in argentina. :comfort

And i think Fanum has done a few "on the road" while in morocco.
Click to expand...

I carry your how-to along with a spare bearing and seal in my pannier. :thumb2 The oil is the one area I've got to sort. What do you figure is the minimum amount you could put in to get you a 100 miles or so?
 
Yeti said:
I carry your how-to along with a spare bearing and seal in my pannier. :thumb2 The oil is the one area I've got to sort. What do you figure is the minimum amount you could put in to get you a 100 miles or so?
Click to expand...

150-200ish cc.
 
Yeti said:
Perfect, thanks then. I'll be off to pick up a small container that size...
Click to expand...

If you're stuck just drain what you need out of your gearbox. ;)

It'll get you to where can refill both with no problems or any long lasting damage.
 
That will be it then...

Amazingly, now I have got the allen bolts out and examined it further there doesn't appear to be any other damage...

WheelBearing.JPG
 
Next Steps

Ok - got to here, so far so good. My problem now is I don't have a puller and can't get the old bearing off. Should the crown wheel come off easily to give me access to the bearing from the other side to drift it off. I have tried some gentle tapping but no movement, obviously don't want to knacker it completely - the crownwheel not the bearing :D . Cheers, Paul

CrownWheel.JPG
 
Of you haven't got a puller, then put it in a vice and using a thick bolster in the small gap between the crownwheel and bearing hit it with a hammer, go around it to even it out, then pad it out with thicker implements as it moves further from the crown wheel.
Once it's moved half inch or so you can hold it upside down and tap around it with the bolster by hand.

While doing that have the bearing in a specialised bearing heater ( old sandwich toaster, £3 from a boot sale :thumb), when nice and hot drop it onto the flange, then heat up the cover plate on the sarnie toaster and when that's hot enough drop the bearing and flange into the cover plate.

Sandwich toaster heats up both sides evenly, perfect for the job.





[/
 
I'm about to go on a two up couple of thousand mile trip so I've decided to do this check.

Is removing the seal just a case of levering with a suitable implement (screwdriver :) ) or would it be best to drill / self tapper it?

Cheers
Matt
 
MattW said:
I'm about to go on a two up couple of thousand mile trip so I've decided to do this check.

Is removing the seal just a case of levering with a suitable implement (screwdriver :) ) or would it be best to drill / self tapper it?

Cheers
Matt
Click to expand...

Lever. And if you do it right you can re-use the seal. :thumb
 
Thanks

Cheers for the advice everyone, particularly Steptoe. Had to work for a few days but got round to finishing it all today, had to get the bearing removed at my local garage but apart from that it all went very smoothly. Now just noticed one of the front fork seals has gone, ah well hopefully that will be pretty straightforward.
 
Nippy Normans supply Touratech, Wunderlich, Desert Fox and many other makes of accessories.
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