- Joined
- Dec 15, 2008
- Messages
- 7,006
- Reaction score
- 1,320
- Location
- Port Elizabeth
- Bike
- BMW R1200GS Adventure
After being ripped off just once too often, I have been on a mission to be able to do final drives myself. Here are the results, with timestamps on the photos to give you an idea of time for the strip down.
I have here already mounted the FD in a bracket I designed specifically for the purpose. I can hold onto the FD in the vice without damaging the disk or the paintwork. Here is the mounted FD.
First we need to remove the large nut holding the pinion bearing in as well as the seal collar.
Nut is off.
Collar socket is fitted
And the collar is removed.
Now we remove the flange circlip
Like so
And we remove the flange
These 10 bolts need to be removed to split the FD
Done!
The only time a hammer is used is to split the FD. A nylon mallet VERY gently
As the two halves separate, the shims will be free to be removed.
The only resistance is caused by this O-Ring
Once split, we now have the Crownwheel on one side and the pinion still in the housing.
We'll remove the crownwheel bearing first. Here the crownwheel is removed from the bearing and housing.
We then remove the large seal
with a seal pick
Now we can get to the circlip holding the bearing in place
Remove it
And remove the bearing from the housing.
Now remove the outer wire clip from the outer housing.
And remove the outer seal and bearing.
Push out the entire pinion assembly.
Here the bearing failure can clearly be seen.
Remove the large Pinion bearing
And then the small one.
All done in a little over half an hour.
[/quote]
I have here already mounted the FD in a bracket I designed specifically for the purpose. I can hold onto the FD in the vice without damaging the disk or the paintwork. Here is the mounted FD.
First we need to remove the large nut holding the pinion bearing in as well as the seal collar.
Nut is off.
Collar socket is fitted
And the collar is removed.
Now we remove the flange circlip
Like so
And we remove the flange
These 10 bolts need to be removed to split the FD
Done!
The only time a hammer is used is to split the FD. A nylon mallet VERY gently
As the two halves separate, the shims will be free to be removed.
The only resistance is caused by this O-Ring
Once split, we now have the Crownwheel on one side and the pinion still in the housing.
We'll remove the crownwheel bearing first. Here the crownwheel is removed from the bearing and housing.
We then remove the large seal
with a seal pick
Now we can get to the circlip holding the bearing in place
Remove it
And remove the bearing from the housing.
Now remove the outer wire clip from the outer housing.
And remove the outer seal and bearing.
Push out the entire pinion assembly.
Here the bearing failure can clearly be seen.
Remove the large Pinion bearing
And then the small one.
All done in a little over half an hour.
[/quote]
