Lester Mags pre load

[140008]

1983 R100S W/Lester mags.How do you get the 2" chrome hub off it has 4 holes, looks like it maybe a spin off.I want to replace internal parts as the preload seems too tight and it is advised to install BMW guts.Wheel is about right w/ 10 lbs torque on axle nut. Any advice and direction would be appreciated.

[20774]

Picture? Hole spacing? The old /2 bikes had a hub nut that has four holes...I bought a hub nut removal tool from Cycleworks...worked excellent. They list a tool for the /6/7 bikes, but no mention of Lester wheels.

[140008]

Hub OD 55mm,Hub ID 36mm,Hole spacing center to center,opposing holes 44mm, 4 holes,5mm ea.So,these would have to come off to get 40mm bearing races in.

[20774]

As it turns out, that hole spacing is exactly what my /2 hub nut removal tool is. I'd check with Cycleworks...what's the cost of a plane ticket to Alaska...

[amiles]

The Lesters that you have were PROBABLY set up for the /6 and similar configuration. The deal was that you would buy the Lesters, Transfer your bearings & other hardware (including the caps you speak of).

I believe that the 83 model has the newer style grease seal etc. Check the /6 parts diagram & see if that isn't what you have. the small cover with 5 bolts on the rear wheel bearing is also indicitive of a /6 type wheel.

Harbor freight used to have an adjustable pin spanner & probably still does.

[DAVIS2X1]

Art,
You can make your own tool. 1/2 square key stock 2 1/2 inch long or so. Drill two 5mm (7/32 inch) holes spaced to match the holes at 180 degrees. Insert two 5mm x 20 mm lg bolts and nuts. Use a 1/2 inch open end to turn the tool.

Worked for me

[doktortim]

Why not just work down the spacer with abrasive on plate glass to thin it a bit and increase the preload at spec torque??

[Stan_R80/7]

The expect the hub spins off. The 4 holes are for a pin wrench. I have used a strap wrench before on my 78 wheel hubs and it works fine - lefty loosy. The hub was not very tight.

The brake disk may need to be removed when using a strap wrench. If so, I highly recommend marking all the bolts (and nuts) relative to the hub and the disk relative to the hub with a sharpie marker. The sharpie ink will wear off or can be removed with rubbing alcohol. Alternately, you can get a pin wrench from Harbor Freight, Amazon, etc. Good Luck!

[140008]

Why not just work down the spacer with abrasive on plate glass to thin it a bit and increase the preload at spec torque??

I am under the imperssion that if my wheel bearings gets too tight with a less than the spec. torque than my spacer set is too loose and I need to add a shim. Is this correct or am I bass akwards.

[doktortim]

I am under the imperssion that if my wheel bearings gets too tight with a less than the spec. torque than my spacer set is too loose and I need to add a shim. Is this correct or am I bass akwards.

A thinner shim will require more torque to obtain proper preload.

On second thought, I am now confused myself. Best go review what Snowbum has to say before going further.

[140008]

A thinner shim will require more torque to obtain proper preload.

On second thought, I am now confused myself. Best go review what Snowbum has to say before going further.

I did read on the Snowbum site until I understood.Quote:"If you use a wider spacer,the preload DEcreases,as the bearings are now "held out" farther from the bearing shells." So,if my preload is too tight I want to add a shim to hold the bearing races further away from the shells so that I can increase the torque on the axle to the correct spec,without the bearings being too tight. Wheel preload too tight add a shim.