5 replies [Last post]
Micha
Micha's picture
 Offline
Joined: 10/12/2007
Posts: 414

I found this shim inside the parts box as I assembled the crankshaft bearing.
I do not know of course whether it belongs to the crankshaft issue and I also do not find it in the photos I did while disassembling.
In short - I can't remember it and I have no idea where to put it ...
Please note that little drill.
Thank you for any help.

  • a.jpg
  • b.jpg
__________________

Michael Steinmann
R51/3 1952
Engine Nr. 529466

Daves79x
Daves79x's picture
 Offline
VBMWMO #9030
Joined: 08/09/2015
Posts: 381
Looks Like

It looks like the rear crank bearing splash shim, but not quite. It has a few more 'steps in the body than any I've seen. But that's my best guess.

Dave

__________________

Dave

Micha
Micha's picture
 Offline
Joined: 10/12/2007
Posts: 414
Thanks. I also think it is

Thanks.
I also think it is something to do with bearings, but I did not see it in the drawings of Salis or Huggett Confused

__________________

Michael Steinmann
R51/3 1952
Engine Nr. 529466

wa1nca
wa1nca's picture
 Offline
VBMWMO #8374
Ashfield Ma.
Joined: 09/27/2012
Posts: 644
splash ring

Yes splash ring
2nd pic is best
#1 in this diagram for R51/3
https://www.bmwclassicmotorcycles.com/parts/all-parts/sample-part-one-26/

Same as #28 in this diagram for R50_R69s
https://www.bmwclassicmotorcycles.com/parts/all-parts/crankshaft-2/
Also need #29 wave washer
The splash ring goes on the rear of the crankshaft oil seal, then the wave washer, then the flywheel

Tommy

__________________

Tommy Byrnes
54 R51/3 55 R50 64 R27 68 R69US 68 Sears Allstate 250 (Puch)

Micha
Micha's picture
 Offline
Joined: 10/12/2007
Posts: 414
I'm speechless. Thanks!

I'm speechless.
Thanks!

__________________

Michael Steinmann
R51/3 1952
Engine Nr. 529466

Micha
Micha's picture
 Offline
Joined: 10/12/2007
Posts: 414
Good evening,If I got it

Good evening,
If I got it right, the assembly order goes like this: main bearing, splash ring with its protruding side towards the bearing/motor, oil seal, wave washer.
Today at work (where I assemble the motor as I have all necessary stuff for it) I noted that I forgot to bring with me that splash disc so I could not proceed, though I took a look and I think that this splash ring will sit loose in there, as the oil seal is only 7 mm thick (Not to mention that the workshop manual claims to mount the oil seal in such a way that it will stand out 1 mm).
Is this correct? Should it be that way, loose inside? Or am I wrong, and it will be a tight fit? Or am I missing something?
I will only be there again at the beginning of the week.
Thanks for any input and have a nice weekend.

__________________

Michael Steinmann
R51/3 1952
Engine Nr. 529466

Comment viewing options

Select your preferred way to display the comments and click "Save settings" to activate your changes.