ADVrider

Go Back   ADVrider > Bikes > Old's Cool > Airheads
User Name
Password
Register Inmates Photos Site Rules Search Today's Posts Mark Forums Read

Reply
 
Thread Tools Search this Thread Display Modes
Old 12-08-2012, 12:51 PM   #16
H96669
A proud pragmatist.
 
H96669's Avatar
 
Joined: Nov 2009
Location: Hiding off Hwy 6, B.C.
Oddometer: 4,296
Quote:
Originally Posted by Big Bamboo View Post
+1 Also, if you grind the business end of that 36mm socket flat, it will be much less likely to slip off and mar something else in the process.
Oh yes!.....HAD to do that on other BMW applications. That's one of the sockets needed to replace the input seal in paralever rear drives.That big nut is pretty thin also and the socket has to be ground. Also if you want to remove fork caps on the later Telelevers, same socket. Very handy....!

Easy to find anyway, that's an automotive "Axle nut socket".
__________________
Have tools, will travel!
H96669 is offline   Reply With Quote
Old 12-08-2012, 01:02 PM   #17
craydds
Beastly Adventurer
 
craydds's Avatar
 
Joined: Aug 2010
Location: Las Cruces, NM
Oddometer: 1,127
Quote:
Originally Posted by Paul_Rochdale View Post
So for me, headstocks are adjusted by feel.
Sutherngintelmen, make sure you understand that Paul is talking about the bearing adjuster nut (steering stem adjuster nut under the top plate), the one you adjust with the spanner wrench. Yes, this is adjusted by "feel", and road testing, too. There are articles written on this adjustment. But, the top cap nut, the one you just removed, is to be torqued down tight. Paul may torque it down tightly by feel, but this "merrycan" does use a torque wrench.
__________________
ABC #12947
'75 R90S

craydds screwed with this post 12-09-2012 at 09:32 AM Reason: spell check
craydds is offline   Reply With Quote
Old 12-08-2012, 01:15 PM   #18
DiabloADV
Semi-Occasional
 
Joined: Oct 2010
Location: Nor Cal, USA
Oddometer: 2,174
Quote:
Originally Posted by Paul_Rochdale View Post
..., headstocks are adjusted by feel.
This is correct. Always has been.
__________________
1974 R90/6 w/1050 kit. Motor only. Seeking a frame.
1970 R60/5
1981 R80G/S Renovation under way. For sale Spring '14
'91 Bill Holland Steel w/Dura Ace

'01 Z3 3.0 Coupe. The Clownshoe.
DiabloADV is offline   Reply With Quote
Old 12-08-2012, 05:33 PM   #19
hardwaregrrl
You talkin' to me?
 
hardwaregrrl's Avatar
 
Joined: Jan 2006
Location: Atlanta
Oddometer: 6,669
Oh man! That pic totally looks like something I would do......without asking. I think I've got an extra tool kit wrench if you need to carry one with you. I don't use them anymore with the KTM front end.
hardwaregrrl is offline   Reply With Quote
Old 12-09-2012, 07:42 AM   #20
jackd
Beastly Adventurer
 
Joined: Dec 2006
Location: North Cowichan
Oddometer: 2,898
[QUOTE=Paul_Rochdale;20205888
About twenty years ago I was a student on a Police Motorcycle Course and the bike I was given to ride suffered from wheel wobble. I reported this at the time but was told to 'take it or leave it'. Our bikes were BMW R80s. Next day we were in a group, on the motorway, running at 100mph. I knew the front would start to shake as I got to the wash from the front of the drivers cab, only this time it was more severe than before. The front began to wobble and nothing I did would stop them. The handlebars crashed from lock to lock and I was flung off the bike and tumbled down the motorway. Well the bike was examined by the Police Accident Investigateor and found to ey unroadworthy. The bearings in the headstock were found to be dry and RUSTY, and either too tight or too loose (I can't remember which).

If you knew that the bike suffered from a severe wobble, why would you make the choice to run it at 100 mph the next day? Ouch.

I took the wheel off my GS several years ago to replace the tire, soon after I purchased the bike. I had heard that a GS had a tendency to go into a wobble from what I had been reading here on the forum if rear loaded and if the steering head was incorrectly adjusted. It had seemed to be quite serviceable during previous inspections, but with the removal of the weight of the front wheel, a stiffness became evident. I took it apart and found dry bearings. With everything inspected and greased, I threw it back together and adjusted it by feel - no torque wrench involved. Five years of service and never a hint of a wobble - though there wasn't one either before I did the work. I'll give it another look pretty soon.
jackd is offline   Reply With Quote
Old 12-09-2012, 12:59 PM   #21
mark1305
Old Enough To Know Better
 
mark1305's Avatar
 
Joined: Feb 2005
Location: Merritt Island, FL
Oddometer: 5,868
+1 on the 36mm six sided socket. AND an impact wrench.

I used to torque the cap nut to specs. Then I read on here somewhere more than once about using impact wrenches that approximated the appropriate torque to tighten the cap nut. I happen to have one impact wrench that fits the bill with both a "soft" setting and a "not terribly more powerful" setting. (I have others that are a little too powerful for tightening but great for loosening).

The plus side of using the suitable impact wrench to tighten the cap nut is that I avoid the risk of tweaking the fork tubes out of parallelism by holding them while tightening the cap nut. Very little leverage required to hold the triple trees when using the impact tool.
__________________
Mark J
Merritt Island, FL

When a person asks you for advice, they don't want advice. They want corroboration.
mark1305 is offline   Reply With Quote
Old 12-09-2012, 03:02 PM   #22
Sutherngintelmen OP
around the bend
 
Sutherngintelmen's Avatar
 
Joined: Mar 2009
Location: ATL
Oddometer: 1,163
Quote:
Originally Posted by craydds View Post
Sutherngintelmen, make sure you understand that Paul is talking about the bearing adjuster nut (steering stem adjuster nut under the top plate), the one you adjust with the spanner wrench. Yes, this is adjusted by "feel", and road testing, too. There are articles written on this adjustment. But, the top cap nut, the one you just removed, is to be torqued down tight. Paul may torque it down tightly by feel, but this "merrycan" does use a torque wrench.
Yes - I'm with you on torquing cap nut but bearing nut is adjusted by feel - thank you for double checking.

I couldn't torque with my crescent wrench so set bicep on pretty friggin tight and buttoned it up. I'll pop the bars off again when I get my gianormous 36mm hex - practice makes perfect.

I am starting to think I should go ahead and drop the forks. My omega 450 is on back order but Rick is saying soon. Schedule being what it is probably be early Jan before I get to tinker again - we'll see. That'll let me take a look at the bearings, replace the boots and lots of working room for new wattage.

I've started reading on forks and some folks report this as pita. I'm sure I'll have a few moments - fun stuff
__________________
There is a pleasure in the pathed woods, There is a rapture in the smoking pipe, There is chaos, where none intrudes, in the deep dell, with its thrills roar; I love not nature less, but bikes the more. Byron riding.

All pics < 6/30/12 deleted by Apple Now with SmugMug supporting ADV
Sutherngintelmen is offline   Reply With Quote
Old 12-09-2012, 03:10 PM   #23
Sutherngintelmen OP
around the bend
 
Sutherngintelmen's Avatar
 
Joined: Mar 2009
Location: ATL
Oddometer: 1,163
Quote:
Originally Posted by hardwaregrrl View Post
Oh man! That pic totally looks like something I would do......without asking. I think I've got an extra tool kit wrench if you need to carry one with you. I don't use them anymore with the KTM front end.
Use what you got!

You like your KTM front end? Worth the bucks and time? I'm not sure where this bike will take me but a po did Wilbers rear and progressive springs in front - suspension changes not on my short list right now. Might take you up on wrench offer. Using the drift to tap it around worked ok but more tools!! Maybe a trade or fair market value?
__________________
There is a pleasure in the pathed woods, There is a rapture in the smoking pipe, There is chaos, where none intrudes, in the deep dell, with its thrills roar; I love not nature less, but bikes the more. Byron riding.

All pics < 6/30/12 deleted by Apple Now with SmugMug supporting ADV
Sutherngintelmen is offline   Reply With Quote
Old 12-09-2012, 03:12 PM   #24
Sutherngintelmen OP
around the bend
 
Sutherngintelmen's Avatar
 
Joined: Mar 2009
Location: ATL
Oddometer: 1,163
Quote:
Originally Posted by jackd View Post
and never a hint of a wobble
What's popular thinking on running a stabilizer on these R80's
__________________
There is a pleasure in the pathed woods, There is a rapture in the smoking pipe, There is chaos, where none intrudes, in the deep dell, with its thrills roar; I love not nature less, but bikes the more. Byron riding.

All pics < 6/30/12 deleted by Apple Now with SmugMug supporting ADV
Sutherngintelmen is offline   Reply With Quote
Old 12-09-2012, 03:12 PM   #25
Sutherngintelmen OP
around the bend
 
Sutherngintelmen's Avatar
 
Joined: Mar 2009
Location: ATL
Oddometer: 1,163
Quote:
Originally Posted by mark1305 View Post
+1 on the 36mm six sided socket. AND an impact wrench.
I need a bigger compressor - more tools!!
__________________
There is a pleasure in the pathed woods, There is a rapture in the smoking pipe, There is chaos, where none intrudes, in the deep dell, with its thrills roar; I love not nature less, but bikes the more. Byron riding.

All pics < 6/30/12 deleted by Apple Now with SmugMug supporting ADV
Sutherngintelmen is offline   Reply With Quote
Old 12-09-2012, 03:18 PM   #26
hardwaregrrl
You talkin' to me?
 
hardwaregrrl's Avatar
 
Joined: Jan 2006
Location: Atlanta
Oddometer: 6,669
Quote:
Originally Posted by Sutherngintelmen View Post
Use what you got!

You like your KTM front end? Worth the bucks and time? I'm not sure where this bike will take me but a po did Wilbers rear and progressive springs in front - suspension changes not on my short list right now. Might take you up on wrench offer. Using the drift to tap it around worked ok but more tools!! Maybe a trade or fair market value?
Na....show up at one of our gatherings and it's yours. We gotta stick together!

I do like the front end, and it has been worth it! I abuse the crap out of the bike, and the stock forks complained on several occasions.
hardwaregrrl is offline   Reply With Quote
Old 12-09-2012, 03:28 PM   #27
Sutherngintelmen OP
around the bend
 
Sutherngintelmen's Avatar
 
Joined: Mar 2009
Location: ATL
Oddometer: 1,163
Quote:
Originally Posted by hardwaregrrl View Post
Na....show up at one of our gatherings and it's yours. We gotta stick together!

I do like the front end, and it has been worth it! I abuse the crap out of the bike, and the stock forks complained on several occasions.
Cheers!
__________________
There is a pleasure in the pathed woods, There is a rapture in the smoking pipe, There is chaos, where none intrudes, in the deep dell, with its thrills roar; I love not nature less, but bikes the more. Byron riding.

All pics < 6/30/12 deleted by Apple Now with SmugMug supporting ADV
Sutherngintelmen is offline   Reply With Quote
Old 12-10-2012, 06:06 AM   #28
AntonLargiader
Beastly Adventurer
 
AntonLargiader's Avatar
 
Joined: Aug 2003
Location: Charlottesville, VA
Oddometer: 4,106
Quote:
Originally Posted by DiabloADV View Post
This is correct. Always has been.
In the old days, maybe. BMWs from the '90s onward have torque specs for the adjustment. They work pretty well; from what I've seen most DIYers adjust the bearings too loose when they go by feel.
__________________
Anton Largiader largiader.com BMWRA.org
AntonLargiader is online now   Reply With Quote
Old 12-10-2012, 07:14 AM   #29
jackd
Beastly Adventurer
 
Joined: Dec 2006
Location: North Cowichan
Oddometer: 2,898
Quote:
Originally Posted by Sutherngintelmen View Post
What's popular thinking on running a stabilizer on these R80's
I've never considered putting on a stabilizer. The bike doesn't need it if properly maintained. As for the rear loading side of the equation, I refuse to install a top box of any sort but stick with the standard BMW side cases. I will put my tent/sleeping bag over the top rack but that's about it. I like the thought of a clear exit path behind me in the event that I have to lay 'er down...
jackd is offline   Reply With Quote
Old 12-10-2012, 07:52 AM   #30
Beemerguru
Beemerguru...G/S guy
 
Beemerguru's Avatar
 
Joined: Nov 2006
Location: Foster City, CA
Oddometer: 865
Haven't seen anyone talk about relieving the pressure on the upper triple by also loosening the clamping bolts on the fork tubes so everything moves in parallel when you torque the head bearing...then tighten the fork tube bolts. Makes for a more precise adjustment
__________________
Greg Hutchinson
BMW Club of Northern California, Ambassador, BMW MOA, Vice President Vintage BMW Club
http://gregsgssite.shutterfly.com/
Beemerguru is offline   Reply With Quote
Reply

Share

Thread Tools Search this Thread
Search this Thread:

.
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Forum Jump


Times are GMT -7.   It's 04:24 PM.


Powered by vBulletin® Version 3.8.5
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright ADVrider 2011-2014