Steering head bearings

[brassmonkey001]

Is it much of a job?
Will I need any special tools?

 

[Rob Farmer]

Can be a pain in the arse. Have you got access to a welder of some kind?

 

[brassmonkey001]

Can be a pain in the arse. Have you got access to a welder of some kind?

Nope.

 

[Redboots]

I found this simple, easy to follow and it works: head bearings/

John

 

[brassmonkey001]

I found this simple, easy to follow and it works: head bearings/

John

Thanks John.
Mines an 88, I don't know how much difference there is.

 

[SJRoome]

Hi

If is a 1988 GS I would be very careful using this procedure. Mine is a 1989 R100 GS and I have the BMW manual. This manual is for the R80GS and R100GS only. This gives the steering head bearing torque as a maximum of 0.5Nm.
The method given in the link is for a different design of steering head assembly and uses much higher torques.

Steve

 

[brassmonkey001]

Hi

If is a 1988 GS I would be very careful using this procedure. Mine is a 1989 R100 GS and I have the BMW manual. This manual is for the R80GS and R100GS only. This gives the steering head bearing torque as a maximum of 0.5Nm.
The method given in the link is for a different design of steering head assembly and uses much higher torques.

Steve

Hi Steve, I have a Haynes and a Clymer manual. You don't fancy scanning the relevant pages and emailing them to me do you?

 

[brassmonkey001]

Hi Steve, I have a Haynes and a Clymer manual. You don't fancy scanning the relevant pages and emailing them to me do you?

Don't worry, I have a copy.






Quick question - does the taper on the adjuster nut face upwards or downwards?

 

[brassmonkey001]

Quick question - does the taper on the adjuster nut face upwards or downwards?

Anyone?
It's not clear in the manual.

 

[brassmonkey001]

Anyone?
It's not clear in the manual.

Anyone got the answer before I go home?

I'd rather not leave it until tomorrow night.

 

[brassmonkey001]

250 views and no-one can tell me which way up the adjuster nut goes?

 

[Deleted account 111026]

Stripped two R100RT steering heads this afternoon, both had the rounded side of the adjuster nut facing downwards.

 

[brassmonkey001]

Stripped two R100RT steering heads this afternoon, both had the rounded side of the castellated nut facing downwards.

Thank you. By the marking on the chrome cap I thought that would be the case but I'm glad to have confirmation.
Now I can go home.

(While someone else comes up with a reason why it goes the other way )

 

[Two wheels good]

head bearing

Maybe this will help:

http://www.realoem.com/bmw/showparts.do?model=0473&mospid=47914&btnr=31_0320&hg=31&fg=10

 

[(RIP) Bin Ridin]

I can imagine the domed face being on the load side to avoid any burrs on the castellation causing mis-tightening / uneven pressure / later loosening / blah blah blah.

In other words, to ensure the tightening face is flat.

 

[brassmonkey001]

Maybe this will help:

http://www.realoem.com/bmw/showparts.do?model=0473&mospid=47914&btnr=31_0320&hg=31&fg=10

Hmm, not much. It's the same picture as I've got and it's not obvious.

I can imagine the domed face being on the load side to avoid any burrs on the castellation causing mis-tightening / uneven pressure / later loosening / blah blah blah.

In other words, to ensure the tightening face is flat.

So, in essence, the opposite of what MotoGS1100 said?

 

[(RIP) Bin Ridin]

Maybe not opposite,
rounded side = domed side
facing downward = load side,
nein ?
Bin

 

[brassmonkey001]

Maybe not opposite,
rounded side = domed side
facing downward = load side,
nein ?
Bin

Haha! You fell for my cunning trick wot I have just played on you!

 

[(RIP) Bin Ridin]

"Act Dumb" !

The oldest trick in the book!

 

[brassmonkey001]

OK. I thought I could get away with cleaning and re-greasing the bearings but the bottom one has had it I'm afraid.
So now I need to get hold of a bearing puller. Can anyone recommend a good one to do the job?