How to check your Final drive bearing - 1100/1150
- Thread starter Steptoe
- Start date
illustratedman
Registered user
Thanx Steptoe
I am getting some intermitent vibe through my seat which feels like a wheel bearing but it not. I have checked both wheels and think it might be a FD bearing or similar.. Not done one of these before so your photos are helpful.
The vibe comes in intermitently and sometimes on LH corners..
I had same symptoms changed both bearings and the vibe still remained, put it down to tyre wear eventually.
cabby
Guest
FD bearing
Thanks but I dont think this is...
its viby but feels more like something binding, not smooth and a bit graunchy.. Ive free wheeled and theres no sensation and its quite smooth. When in gear its difficult to tell from the usual vibe of the engine..
Il replace the seal and have a look at the bearing as per steptoes suggestion.
I also thought it might be the UJ?
Thanks but I dont think this is...
its viby but feels more like something binding, not smooth and a bit graunchy.. Ive free wheeled and theres no sensation and its quite smooth. When in gear its difficult to tell from the usual vibe of the engine..
Il replace the seal and have a look at the bearing as per steptoes suggestion.
I also thought it might be the UJ?
cabby
Guest
Steptoe,
Followed your post and on the ADVrider re replacing bearings.
..please brielfy explain about the shims, not sure what they look like / where they go
Thanx
Followed your post and on the ADVrider re replacing bearings.
..please brielfy explain about the shims, not sure what they look like / where they go
Thanx
igglepiggle
Guest
Rear wheel bearing
Hi, The rear wheel of my 1997 35k miles 1100GS has lateral movement. If i hold the wheel top & bottom there is slight movement, as if a wheel bearing is loose....or is it about to fail? Did you notice anything similar prior to checking yours? regards Iggy
Hi, The rear wheel of my 1997 35k miles 1100GS has lateral movement. If i hold the wheel top & bottom there is slight movement, as if a wheel bearing is loose....or is it about to fail? Did you notice anything similar prior to checking yours? regards Iggy
Captain25
Guest
How did you change the bearing please, after taking oil seal out.
Second question, how do i put up a picture on here, as its asking for url, but its a private pic not a site one thanks
Second question, how do i put up a picture on here, as its asking for url, but its a private pic not a site one thanks
First I think you need to be a subscriber
From your other thread I guess you're really struggling with this, I also can't send you a private message so ring me on 07766 309421 and we'll sort this out
Final drive bearing
Hello from Norway..
On my R1150 RT the final drive bearing died at 167000KM.
My R1150 GSA only have 110000KM so fare,,and the final drive bearing seem to be OK,,but I wil keep an eye on it....
Hello from Norway..
On my R1150 RT the final drive bearing died at 167000KM.
My R1150 GSA only have 110000KM so fare,,and the final drive bearing seem to be OK,,but I wil keep an eye on it....
khpossum
Registered user
So, then the following holds true as well: if the bearing looks OK it must be OK?
Last year, as a precaution, I pulled the large final FD seal and inspected the bearing at 32,000 miles (02 1150GS), everything looked good, installed new seal. Yesterday at ~42,000 miles I see some signs of oil around the back seal and on the tire. Fluid level has dropped 1/8" - 1/4", so not a lot of oil had leaked out the last 2,000 miles since this probably started. Pulled the drain plug, just a litlte bit of the regular fuzz on the magnet. Pulled the seal after cleaning away a lot of oily-dusty crap. Seal looks good. Carefully inspcted the bearing, looks just fine, all rivets in place, no sign of cracked cage. Wheel has no movement. The surface on which the seal "rides" feels smooth.
So, no metal shavings, visually no bearing cage problem. Conclusion, just replace the seal??!! Right!!?.
Not sure why the seal only lasted 10,000 miles, but possibly lots of dusty roads caused that, or just one of those things. At $30 it is not a big deal.
KP
Last year, as a precaution, I pulled the large final FD seal and inspected the bearing at 32,000 miles (02 1150GS), everything looked good, installed new seal. Yesterday at ~42,000 miles I see some signs of oil around the back seal and on the tire. Fluid level has dropped 1/8" - 1/4", so not a lot of oil had leaked out the last 2,000 miles since this probably started. Pulled the drain plug, just a litlte bit of the regular fuzz on the magnet. Pulled the seal after cleaning away a lot of oily-dusty crap. Seal looks good. Carefully inspcted the bearing, looks just fine, all rivets in place, no sign of cracked cage. Wheel has no movement. The surface on which the seal "rides" feels smooth.
So, no metal shavings, visually no bearing cage problem. Conclusion, just replace the seal??!! Right!!?.
Not sure why the seal only lasted 10,000 miles, but possibly lots of dusty roads caused that, or just one of those things. At $30 it is not a big deal.
KP
shamone46
Guest
Thanks
u cant put a price on peace of mind(unless your a profisional mechanic
)
u cant put a price on peace of mind(unless your a profisional mechanic
)
Thanx Steptoe
I am getting some intermitent vibe through my seat which feels like a wheel bearing but it not. I have checked both wheels and think it might be a FD bearing or similar.. Not done one of these before so your photos are helpful.
The vibe comes in intermitently and sometimes on LH corners..
Cabby - I would definately check your FD bearing. I collected my bike from Neil yesterday - he had replaced my FD bearing after it had dropped all its oil.
I told Neil I'd had no warning at all, but reading this reminded me that I HAD noticed a slight vibration, which came and went on a 1 second cycle on long corners about a week ealier....
dancata
Registered user
My big seal on the FD gave up today, after 112k km. I observed oil on the wheel. So I removed the wheel, then removed the big seal... Inspected the big bearing and everything looks ok in there, the bearing is ok.
Is it possible that the seal gave up by itself? What would determine it to just leak all of a sudden now? I would like to solve the cause, not to remedy the effect.
So... I have tried to put the new seal in, and I think I might have done something stupid... The old seal was not pushed in all the way, it was like in Steptoe's pictures... When I have tried to install the new seal, the upper part was pushed all the way in and the lower part doesn't want to go in anymore, so I think I might have f***ed it; no problem, since I have a spare one, and the price is ok, ~ 1,5 eur / seal
Now... how much does the new seal have to be pushed in? All the way or only like the old one, more close to the front?
Dan.
Is it possible that the seal gave up by itself? What would determine it to just leak all of a sudden now? I would like to solve the cause, not to remedy the effect.
So... I have tried to put the new seal in, and I think I might have done something stupid... The old seal was not pushed in all the way, it was like in Steptoe's pictures... When I have tried to install the new seal, the upper part was pushed all the way in and the lower part doesn't want to go in anymore, so I think I might have f***ed it; no problem, since I have a spare one, and the price is ok, ~ 1,5 eur / seal
Now... how much does the new seal have to be pushed in? All the way or only like the old one, more close to the front?
Dan.
dancata
Registered user
dancata
Registered user
I don't get it... It was only the big seal that went bad... The big bearing is ok as far as I can tell. Can only the rear seal fail for no reason? I use Castrol transmision oil GL5 something...
What's not to get? Things don't fail 'for no reason'. You have a stationary bit of rubber sitting tight against a metal part that spins very fast, for lots of kilometers. That bit of rubber goes through many, many heat cycles and is exposed to dirt, grit and all kinds of other things that aren't good for it. It will wear out eventually - how long has it been fitted and how many km have you ridden with it?
Everything fails/wears out eventually - just be happy that it was the seal that wore out before the bearing failed - many people aren't so lucky. Consider it an invitation to inspect the bearing - nothing to worry about - replace it and keep riding
dancata
Registered user
What's not to get? Things don't fail 'for no reason'. You have a stationary bit of rubber sitting tight against a metal part that spins very fast, for lots of kilometers. That bit of rubber goes through many, many heat cycles and is exposed to dirt, grit and all kinds of other things that aren't good for it. It will wear out eventually - how long has it been fitted and how many km have you ridden with it?
Everything fails/wears out eventually - just be happy that it was the seal that wore out before the bearing failed - many people aren't so lucky. Consider it an invitation to inspect the bearing - nothing to worry about - replace it and keep riding
the bike has 112k km now, and I think it is the original seal, or for the last 40k km since it has been mine.
the bearing looks ok, perfect, so no need to change anything.
what I was worried about is not to fix the effect, but the cause; I guess the seal just gave up.
If it's done 112k km then the cause is just that - use. If you want to fix the cause, stop riding the bike 
Seriously, though, 112k km isn't a bad lifetime for a rubber seal exposed to dirt. weather etc.
Seriously, though, 112k km isn't a bad lifetime for a rubber seal exposed to dirt. weather etc.
dancata
Registered user
If it's done 112k km then the cause is just that - use. If you want to fix the cause, stop riding the bike
Seriously, though, 112k km isn't a bad lifetime for a rubber seal exposed to dirt. weather etc.
Now... How much do I have to push in the new seal? All the way or just let it in the front like the old one?
z900guy
Guest
Interesting thread , I have some play on the rear of my 2000 1150 .......however i run a bearing and seal distributors
Does anyone know the bearing reference and seal size ?
If standard I will happilly supply to other members at cost
Ta
Chris
Does anyone know the bearing reference and seal size ?
If standard I will happilly supply to other members at cost
Ta
Chris
The bearing is 85x120x18 of the 'grooved ball bearing' type and the seal is 85x110x10
If you can compete with the OE price for the bearing (around £37) I'd be surprised as suppliers I've checked want a whole lot more than that. The price for the seal is around £17.
If you can beat those prices you'd probably get a lot of interest on here, though
