BMW K bikes (Bricks)

You are not connected. Please login or register

View previous topic View next topic Go down  Message [Page 1 of 1]


1Back to top Go down   starter motor brushes Empty starter motor brushes on Tue Aug 20, 2013 9:20 pm

michaellaw

michaellaw
active member
active member
Hi everyone can anyone tell me weather the length of the starter motor brushes are 12mm all up or 12mm from the end of the housing they are cased in looks like im making my own

    

2Back to top Go down   starter motor brushes Empty Re: starter motor brushes on Tue Aug 20, 2013 9:42 pm

RicK G

RicK G
VIP
VIP
I cant tell you the exact length but when new the top of the brush sits about 1mm maybe 2mm below the top of the little rectangular holder, I presume that is to prevent the spring slipping of the top and losing tension.
I looked into a source of these and came up with zip but in my investigation worked out that they need to have 5mm of brush to wear away.


__________________________________________________
"Man sacrifices his health in order to make money.
Then he sacrifices money to recuperate his health.
And then he is so anxious about the future that he does not enjoy the present; the result being that he does not live in the present or the future; he lives as if he is never going to die, and then dies having never really lived."   Dalai Lama


Bikes 1998 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki
    

3Back to top Go down   starter motor brushes Empty Re: starter motor brushes on Wed Aug 21, 2013 4:10 am

charlie99

charlie99
VIP
VIP
the kit from the 'bins is not expensive

includes the backing plate and both brushes ....this way you get new springs and properly welded up and new cable between the brush and the contact points
have done a fair bit of brush shaping ...from the wrong size to the correct one ...with a file ...(it isn't hard ) but connecting the flexible cable from the brush can be a  bit hard,,, the soldering process works but it weakens the first few millimeters near the joint  with the solder , creating a good fracture point .

good luck !


__________________________________________________
cheezy grin whilst riding, kinda bloke ....oh the joy !!!! ...... ( brick aviator )

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%Ostarter motor brushes Au-log10

'86 k100 rs.. #######..  "Fred " (f(rame) red ) ( Fredrick leichtundschnell ) - -
bits and pieces from many kind friends across the k100 world ...with many thanks ..
    

4Back to top Go down   starter motor brushes Empty Re: starter motor brushes on Wed Aug 21, 2013 3:45 pm

sidecar paul

sidecar paul
Life time member
Life time member
Hi Michael, I've just measured a new brush.

It is 12mm x 5.91mm x 8.87mm


 starter motor brushes Sam_0712

Paul.


__________________________________________________
'84 K100RS (0014643) (owned since '85), 86 K100RS (0018891) with Martello sidecar (built as an outfit in '88),
'51 Vincent (since '67),'72 Montesa Cota (from new), '87 Honda RS125R NF4 (bought 2015) 
....No CARS never ever!
    

View previous topic View next topic Back to top  Message [Page 1 of 1]

Permissions in this forum:
You cannot reply to topics in this forum