Going on a trip and worried about your final drive bearing ?. The one that can fail.
This won't help with a sudden collapse, but most of them aren't, they're a gradual process.
It'll cost you a final drive output seal, about £15-£20, but if your off on your holidays or a long trip it must be worth it for peace of mind.
Remove the rear wheel - drain the final drive oil.
Here's the seal your looking for.
Remove the seal.
Now examine the bearing cage through the gap left by the seal.
What your looking for are any of the rivets missing in the bearing cage , or a broken/snapped bearing cage.
What you want to see is this, in the picture below. All the rivets in place and the cage unbroken.
What you don't want to see is this. ( pictures are of the bearing removed from the final drive, but you'll still be able to see any of the damage with it in place)
A missing rivet - which will lead to the cage breaking and the bearing rollers all being pushed together. In the condition shown, the bearing had no noise or play, and you wouldn't have known about it until the bearing collapsed, which be could as long as a thousand miles .
A broken cage. As you can see, it's started to spread, and will deteriorate rapidly, but again there were no noises or roughness when the rear wheel was turned, so you wouldn't have known about it.
.
After checking , the seal replacement is simply straigthforward. Pop a new one back in place.
Of course this doesn't guarantee in any way that the bearing you checked, and was in perfect condition will last the length of your journey.
Part Nos:-
Seal - 33 12 7 663 482
Bearing - 33 12 1 242 210
This won't help with a sudden collapse, but most of them aren't, they're a gradual process.
It'll cost you a final drive output seal, about £15-£20, but if your off on your holidays or a long trip it must be worth it for peace of mind.
Remove the rear wheel - drain the final drive oil.
Here's the seal your looking for.
Remove the seal.
Now examine the bearing cage through the gap left by the seal.
What your looking for are any of the rivets missing in the bearing cage , or a broken/snapped bearing cage.
What you want to see is this, in the picture below. All the rivets in place and the cage unbroken.
What you don't want to see is this. ( pictures are of the bearing removed from the final drive, but you'll still be able to see any of the damage with it in place)
A missing rivet - which will lead to the cage breaking and the bearing rollers all being pushed together. In the condition shown, the bearing had no noise or play, and you wouldn't have known about it until the bearing collapsed, which be could as long as a thousand miles .
A broken cage. As you can see, it's started to spread, and will deteriorate rapidly, but again there were no noises or roughness when the rear wheel was turned, so you wouldn't have known about it.
.After checking , the seal replacement is simply straigthforward. Pop a new one back in place.
Of course this doesn't guarantee in any way that the bearing you checked, and was in perfect condition will last the length of your journey.
Part Nos:-
Seal - 33 12 7 663 482
Bearing - 33 12 1 242 210
