RT...GS..basically same animal "Right"?

[bmwrich58]

I'm in the process of changing out my "Pivot Arm Bearings" (rear end to swing arm) on my RT. Please don't confuse with the "swing arm bearings.
Did anybody find play in the rear end/wheel area and the cause to be the pivot arm bearings?? Since I've mentioned this here in the States on different site's,more have responded,"Yes". One person has changed his twice in 40K miles.

 

[Max_Kool]

I ride an 1100GS and I noticed some play at the rear pivot at 78.000 km. This was noticeable when rocking the rear wheel to and fro holding it at 3 and 9 'o clock (this English is killing me). About 2-3 mm play at the tyre.

We replaced the rear pivot bearings at 80 kkm service. Was less than an hours' work. Bearings are about ₤ 12,- each.

Some bikes need them every 20 kkms, others only every 50 or 60 kkm. Might've something to do with overtorqueing?

 

[cookie]

yes, done mine on my PD. they were notchy.

 

[The Mechanic]

Yes sirree...!

Quite right to.. there both animals!

 

[Rob Farmer]

My old 1100 had them fail at low mileage, my 1150 GSA ones went at 5k and my Mates 1100SS ones failed at 9k. Very common problem that seems to go away if you torque them up correctly when refitting the new ones.

 

[bmwrich58]

Very common problem that seems to go away if you torque them up correctly when refitting the new ones.

Well, as anal as I am,it took me a little longer than 1 hour to R&R.

I put in new bearings and a new right hand pivot pin.

The torque value I used << 160Nm>> came from the CD manual. Used Blue Loctite,hope that does it!

 

[Max_Kool]

I'm mostly referring to the torque value of the left hand bolt. Should be only 7 Nm. But make sure the bearings are properly seated first.

When tightening the locknut on the left hand side, make sure the bolt doesn't turn too. That way you'd overtorque the bearings (use a feltpen to make a mark on the bolt and the housing before you tighten the locknut).

And beware, on the older R1100xx the right hand side bolt can have a low flange. This bolt needs only be tightened at 105 Nm!! (although the manual says otherwise)

 

[bmwrich58]

I'm mostly referring to the torque value of the left hand bolt. Should be only 7 Nm. But make sure the bearings are properly seated first.

Thanks! Yep,did exactly that. Pre-torque left pivot pin 9Nm,slacken then re-torque to 7Nm. Lock-nut then to 160Nm.

Funny how alot of people have had this problem,yet very few mention it unless asked or the topic comes up in conversation.

seems the "outter bearing" always goes first....