Dave's R25/3

[Dave]

4FEB06 - changed the title, will add pictures during the restoration of my R25/3

You may find this story interesting -

I'm lucky enough to have the original data plate with frame and engine serial numbers matching.

Unfortunately the data plate is quite faded (below).




I noticed the last owner had written "use UV light to read" on the back...mmm. So, off to work and hit it with the UV (black) light and viola!

[Dave]

[Karl]

GREAT IDEA!            

[Dave]

I recently set some parts to get the surface finishes redone after being glass bead blasted.

Unfortunately the manganese phosphated parts have been poorly done - I suspect an old solution in the plating bath. Will blast them again and send them back for another go 

Before:



After:



Before:



After:



Before:



After:

[Dave]

Final drive housing cleaned up, bearing seal witness drain cleared out, all the hardware you see has been freshly cadmium plated.

I have to replace the grease nipple with a 6.0 x 1.0 after putting a thread insert in the hole. As the bike lived in Australia, one of the original 6.0 x 0.7 threaded nipples must have been lost and a 1/4" nipple was butchered in the hole 

I wanted to put the original 6.0 x 0.7's in the hole (found two supplier in Germany) but I cant find a thread repair kit for that size thread.

[† odeon8]

Hi Dave,

probably the grease nipple has M6x0,75.
BUT: There is an alternative to the existing M6x1 thread.
Look at www.ulismotorradladen.de.
They are selling special nipples with M6x1:

Part number item                             price
S000 72284 Schmiernippel 6mm Normalgewinde  € 1,66 €


For changing the thread back look this eBay offer. Haraldseifert is shipping worldwide.

I would not try to change back to M6x0,75 because of the risk damaging the thread completely...

Greetings from Bavaria

Thomas

[Dave]

Thanks Thomas, I bought a few nipples as you described from Uli's in my last order, seen here with the original BMW 6.0 x 0.75 nipple.



When the 1/4" nipple was screwed in it destroyed the thread in the housing so I have to repair it using this kit:



Greets to Bavaria! Ahh, summer and Schöfferhofer...

Dave.

[Dave]

Grease nipple thread repair using the kit mentioned above:


1. Clearance drill.




2. Tap thread.




3. Insert new thread.




4. Finished thread, 6.0x1.0mm.